: 1.21 $2024-03-19T05:17:05-7:0054.160.244.62searchRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6319Timothy W. Chumley1996819232U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Phantom Canyon: along Eightmile Creek and surrounding cliffs off Colo Hwy 67 or Phantom Canyon Road approx 2.2 rd mi N of BLM Steel Bridge Interpretive Site, ca 8.2 air mi NE of Canon City.-105.095738.585222562353Along the sandy-gravelly banks of the stream and immediately adjacent flats and slopes. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James40272B. E. Nelson1997616167U.S.A.WyomingCarbon[location and coordinates withheld]20882097Flats along the stream among old building foundations. Phenology: vegetative only.RMUSFS852257 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James54297Ronald L. Hartman199665157U.S.A.WyomingFremontWind River Range: Fitzpatrick Wilderness Area: 2.5 air mi WSW of Dubous.-109.679443.53322562408Sagebrush slope with irrigation ditch and roadcuts; redbeds in part. Phenology: vegetative only.RMUSFS852256 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James55073Ronald L. Hartman David Rosenthal1996710192U.S.A.WyomingParkNorthern Absaroka Area: Sheep Mountain, north-central access from 0.4-0.8 air mi S of County Road 6FU on west branch of central drainage.-109.305144.47917831890Dry stream bottom. Phenology: vegetative only.RMUSFS852255 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James55084Ronald L. Hartman David Rosenthal1996712194U.S.A.WyomingParkNorthern Absaroka Area: Wapiti Ridge Area: Houlihan Creek and ridge to southwest.-109.48344.302318291951Rocky, dry stream bottom or wet above, and sandstone outcrops. Phenology: vegetative only.RMRM856931 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James16798B. E. Nelson1989623174U.S.A.WyomingParkNorthern Absarokas: along Pilot Creek just above junction with Clarks Fork Yellowstone River, ca 48 air mi NW of Cody.-109.8002844.952118Stream bank. Phenology: vegetative only.RMUSFS856607 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1059David Rosenthal1997620171U.S.A.WyomingParkNorthern Absaroka Area: Shoshone National Forest: from Four Bear Trailhead to peak 8245T (Jim Mountain Quad), E of Jim Mountain and NW of Four Bear, ca 2.5 mi E of town of Wapiti on U.S. Hwy 14, 16, and 20.-109.385844.493517682134Stream bottom and adjacent slopes. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James40854B. E. Nelson Amy J. Roderick1997625176U.S.A.WyomingCarbon[location and coordinates withheld]22252256Margins of pond and drainage leading into it. Phenology: fruiting.RMUSFS856606 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James639David Rosenthal Cathy Binger1997612163U.S.A.WyomingParkNorthern Absaroka Area: along trail and slopes of Sweetwater Creek from bridge at Wapiti Campground, ca 30 air mi W of Cody on U.S. Hwy 14, 16, and 20, up trail towards springs.-109.62444.46181829Riparian woodland. Phenology: vegetative only.RMUSFS856932 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James716David Rosenthal Cathy Binger1997614165U.S.A.WyomingParkNorthern Absaroka Area: Shoshone National Forest: pack trail up main drainage W of Signal Peak (across river from Laughing Pig Rock), ca 5 air mi E of town of Wapiti on U.S. Hwy 14, 16, and 20.-109.543544.461818292073Forested slopes with open sparsely vegetated areas, volcanics. Phenology: vegetative only.RMUSFS856930 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James58666Ronald L. Hartman Jim Fowler1997726207U.S.A.WyomingParkNorthern Absaroka Area: east side of Sheep Mountain, ca 8 air mi SW of top of Cedar Mountain.-109.305144.421117371829Eroded shales and sandstones with wet spots. Phenology: vegetative only.RMUSFS856929 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James58776Ronald L. Hartman Jim Fowler1997726207U.S.A.WyomingParkNorthern Absaroka Area: east side of Sheep Mountain, ca 11 air mi SW of Cedar Mountain.-109.305144.392217072012Sedimentary slopes with wet spots. Phenology: vegetative only.RMUSFS856783 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59014Ronald L. Hartman Jim Fowler1997727208U.S.A.WyomingParkNorthern Absaroka Area: Ishawooa Creek Pack Trail.-109.603944.331320422073North exposure with Douglas fir forest and spruce and along creek shoulder. Phenology: vegetative only.RMUSFS856782 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59046Ronald L. Hartman1997729210U.S.A.WyomingParkNorthern Absaroka Area: Cabin Creek.-109.657444.125720422317Stream bottom and adjacent hills. Phenology: vegetative only.RMUSFS856781 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59415Ronald L. Hartman1997811223U.S.A.WyomingParkNorthern Absaroka Area: Bobcat Creek Trail.-109.503244.287818901951Sagebrush slope and streamside. Phenology: fruiting.RMUSFS856780 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59416Ronald L. Hartman1997811223U.S.A.WyomingParkNorthern Absaroka Area: Bobcat Creek Trail.-109.503244.287818901951Sagebrush slope and streamside. Phenology: vegetative only.RMUSFS856779 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59554Ronald L. Hartman1997813225U.S.A.WyomingParkNorthern Absaroka Area: road S of the North Fork Shoshone River, ca 0.5 air mi E of Wapiti.-109.40644.46451707Roadside and slope to river. Phenology: vegetative only.RMUSFS856808 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59659Ronald L. Hartman1997813225U.S.A.WyomingParkNorthern Absaroka Area: road on south side of the North Fork Shoshone River, ca 5 air mi E of Wapiti.-109.365644.4791707River margins and irrigation ditch and riparian area. Phenology: vegetative only.RMUSFS856807 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59692Ronald L. Hartman1997813225U.S.A.WyomingParkNorthern Absaroka Area: Buffalo Bill Reservoir, ca 10.5 air mi E of Wapiti.-109.224444.4791707Ravine and roadside. Phenology: vegetative only.RMUSFS856806 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59728Ronald L. Hartman1997813225U.S.A.WyomingParkNorthern Absaroka Area: Buffalo Bill Reservoir, ca 10 air mi ESE of Wapiti.-109.244644.43561676Area of water fluxuation and roadside. Phenology: vegetative only.RMUSFS856805 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59745Ronald L. Hartman1997813225U.S.A.WyomingParkNorthern Absaroka Area: Buffalo Bill Reservoir, ca 12 air mi ESE of Wapiti.-109.184144.45011676Lakeside, roadside, and along irrigation canal. Phenology: vegetative only.RMUSFS856928 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59851Ronald L. Hartman1997815227U.S.A.WyomingParkNorthern Absaroka Area: Rock Creek and South Fork Road, ca 17 air mi SW of Cedar Mountain summit.-109.40644.31981981Disturbed areas and under cottonwoods. Phenology: vegetative only.RMUSFS856881 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59957Ronald L. Hartman1997816228U.S.A.WyomingParkNorthern Absaroka Area: Legg Creek area along the South Fork Shoshone River, South Fork Road, ca 1.8 air mi SW of Hunter Creek Road turnoff.-109.583744.186319512012Along gravel bars and low areas along the river and bench areas and disturbed areas. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James63594B. E. Nelson James F. Fowler2004925269U.S.A.ArizonaCoconinoCoconino National Forest: in and along James Canyon from I-17 W, ca 11 air mi S of Flagstaff.-111.690735.046619812012Rocky shallow canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James63732B. E. Nelson James F. Fowler2004926270U.S.A.ArizonaCoconinoCoconino National Forest: above and in upper Walnut Canyon from County Road 3 (Forest Hwy 3) to the junction with Skunk Canyon, ca 4.5 - 5 air mi SE of Flagstaff.-111.605235.13162048Canyon bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James80271Ronald L. Hartman James F. Fowler2004829242U.S.A.ArizonaCoconinoCoconino National Forest: ca 8 air mi SSW of Flagstaff; Kelly and Fry canyons, area of intersection.-111.720135.061419121920Stream bottom. Phenology: vegetative only.RMRM725263 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10376Erwin F. Evert1986712193U.S.A.WyomingParkNorth Fork Shoshone River Drainage: Absaroka Mountains: along west side of North Fork Shoshone River, ca 6-9 mi NNE of U.S. Hwy 14, 16, and 20.-109.961744.587521952317Mixed coniferous forest. Phenology: vegetative only.RMRM731033 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11999Erwin F. Evert198768159U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: Shoshone National Forest: along Dunn Creek, ca 2-3 mi N of Wapiti.-109.462944.49082012Riparian community with Populus angustifolia, Elaeagnus commutata and Alnus incana. Phenology: vegetative only.RMRM731307 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12195Erwin F. Evert1987614165U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: along Wall Creek ca 2.5 mi N of U.S. Hwy 14, 16, and 20.-109.48344.49082012Riparian community dominated by Alnus incana, Populus balsamifera and Rosa woodsii. Phenology: vegetative only.RMRM731301 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12201Erwin F. Evert1987616167U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: along Horse Creek, ca 2 mi N of U.S. Hwy 14, 16, and 20.-109.603944.49082042Riparian community with Populus balsamifera, Pseudotsuga menziesii and Rosa woodsii. Phenology: vegetative only.RMRM753701 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14320Erwin F. Evert198867159U.S.A.WyomingPark[location and coordinates withheld]17681792In riparian community dominated by Salix spp. and Alnus incana var. occidentalis. Phenology: vegetative only.RMRM753287 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14343Erwin F. Evert1988610162U.S.A.WyomingPark[location and coordinates withheld]1638Along north shore of reservoir, at upper edge of seasonal draw-down area, dominated by Salix exigua and Populus angustifolia. Phenology: vegetative only.RMRM753429 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14470Erwin F. Evert1988614166U.S.A.WyomingPark[location and coordinates withheld]1951Riparian area at mouth of small canyon. Phenology: vegetative only.RMRM738581 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20626Erwin F. Evert1991611162U.S.A.MontanaGallatin[location and coordinates withheld]1310Disturbed, weedy, riparian area with Salix exigua, Betula occidentalis, Poa pratensis, Allium textile, and Juncus balticus. Phenology: vegetative only.RMRM738562 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20646Erwin F. Evert1991611162U.S.A.MontanaGallatin[location and coordinates withheld]1310Disturbed, weedy, riparian area with Salix exigua, Betula occidentalis, Poa pratensis, Allium textile, and Juncus balticus. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James21024Erwin F. Evert1991619170U.S.A.IdahoTetonTarghee National Forest: Big Hole Mountains: just N of Pine Creek Campground along both sides of Idaho Hwy 31, ca 6 mi W of Victor.-111.207443.57362012Seepage area with Salix boothii, Carex rostrata, and Valeriana occidentalis.RMRM739495 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James21136Erwin F. Evert1991627178U.S.A.MontanaStillwater[location and coordinates withheld]1158Riparian area with Populus balsamifera, Toxicodendron rydbergii, and Cornus stolonifera. Phenology: vegetative only.RMRM738895 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James21792Erwin F. Evert1991718199U.S.A.MontanaSweet Grass[location and coordinates withheld]1280Weedy riparian area with Populus balsamifera, Salix lasiandra, Agrostis stolonifera, and Betula occidentalis. Phenology: vegetative only.RMRM779782 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James22713Erwin F. Evert1992611163U.S.A.MontanaStillwater[location and coordinates withheld]1097Weedy riparian area with Salix amygdaloides, Acer negundo, Populus deltoides and Medicago lupulina. Phenology: vegetative only.RMRM612044 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24928Erwin F. Evert199364155U.S.A.MontanaParkCarter's Bridge Fishing Access along east side of the Yellowstone River, 4 mi S of Livingston.-110.559945.58881396Disturbed riparian area with Populus angustifolia, Asperugo procumbens, and Poa pratensis. Phenology: vegetative only.RMRM782687 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James29209Erwin F. Evert1995616167U.S.A.MontanaPark[location and coordinates withheld]1646Adjacent to irrigation ditch, wet soil with Carex aurea, Juncus balticus, and Salix exigua. Phenology: vegetative only.RMRM783828 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James29785Erwin F. Evert199576187U.S.A.MontanaSweet Grass[location and coordinates withheld]1158Disturbed, weedy riparian area and field with Bromus tectorum, Medicago lupulina, and Poa pratensis. Phenology: vegetative only.RMRM818164 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James32748Erwin F. Evert1997610161U.S.A.MontanaCarbonAlong the east side of the Clarks Fork Yellowstone River, ca 1.3 mi E of Edgar and U.S. Hwy 310.-108.832445.45781054Disturbed riparian/pasture area with Tanacetum vulgare, Hesperis matronalis, and Euphorbia esula. Phenology: vegetative only.RMRM818500 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James33092Erwin F. Evert1997621172U.S.A.WyomingHot SpringsBighorn Basin: along Cottonwood Creek just W of bridge, ca 30 mi NW of Thermopolis.-108.683943.76361737Heavily grazed riparian community with Populus angustifolia, Bromus tectorum, and Artemisia tridentata var. tridentata. Phenology: vegetative only.RMRM819887 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James34519Erwin F. Evert199785217U.S.A.MontanaParkYellowstone Valley: Springdale Bridge Public Boating Access, along the south side of the Yellowstone River, 18 mi E of Livingston.1286Riparian community in moist sandy soil with Populus angustifolia, Salix lasiandra var. caudata, and Spartina pectinata. Phenology: vegetative only.RMRM819910 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James34549Erwin F. Evert199785217U.S.A.MontanaSweet GrassGrey Bear Campground/Boating Access, along the south side of the Yellowstone River, 6 mi SW of Big Timber.1250Disturbed riparian community on sandy soil with Populus angustifolia, Cornus sericea, Chenopodium botrys, and Spartina pectinata. Phenology: vegetative only.RMRM820169 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James34868Erwin F. Evert199862153U.S.A.MontanaCarbonAlong the south side of Yellowstone River at the mouth of Wolf Canyon, ca 14 mi WSW of Laurel.-109.038145.58891042Disturbed riparian community in wet soil with Populus deltoides, Acer negundo, and Salix amygdaloides. Phenology: vegetative only.RMRM820285 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James35188Erwin F. Evert1998629180U.S.A.MontanaParkGallatin National Forest: along the north side of Yellowstone River just west of Bear Creek, 2 mi E of Gardiner.-110.66845.03681615Open, vernally moist sinter in thermal area with Eleocharis rostellata, Deschampsia cespitosa, and Sporobolus airoides. Phenology: fruiting.RMRM821128 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James36426Erwin F. Evert1998812224U.S.A.WyomingFremontWind River Range: Torrey Creek Trailhead at end of road, 8 mi SSE of Dubois.-109.563243.42092286Riparian community along west side of creek under Picea pungens with Betula occidentalis, Equisetum arvense, and Actaea rubra. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James69904B. E. Nelson James F. Fowler, Brian Reif2006825237U.S.A.ArizonaCoconinoSitgreaves National Forest: Mogollon Plateau: Chevelon Canyon Campground and Chevelon Crossing on Forest Road 504, ca 15.5 air mi NW of Heber; ca 30.5 air mi S of Winslow.-110.787934.591618711890Stream bank and adjacent thickets. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59294B. E. Nelson2003715196U.S.A.ColoradoConejosEastern San Juan Mountains: in The Canyon and adjacent areas on Forest Road 255 at the forest boundary, ca 12 air mi NW of Capulin; ca 15 air mi SSE of Monte Vista.-106.2637.385425452606Dry drainage with moist area and willows and aspen. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James59461B. E. Nelson2003715196U.S.A.ColoradoConejosEastern San Juan Mountains: along the Conejos River, on road between Colo Hwy 17 and Forest Road 250, ca 19.5 air mi W of Antonito.-106.359937.12892637Willow carr in the river bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2605Jeanette Flaig2003814226U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 W from Del Norte to County Road 19.-106.591437.67782500Along highway. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2831Jeanette Flaig Cindy Villa2003818230U.S.A.ColoradoArchuleta[location and coordinates withheld]2426Pinyon juniper ecosystem with rock canyons. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2859Jeanette Flaig2003819231U.S.A.ColoradoArchuletaEastern San Juan Mountains: San Juan National Forest: Coal Creek Trailhead: U.S. Hwy 160 W to Fawn Gulch Road; ca 6 air mi E of Pagosa Springs.-106.90137.309124782602Douglas fir, ponderosa pine and white fir forest with seeps. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6Jeanette Flaig2003629180U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rio Grande State Wildlife Area: U.S. Hwy 160 E to Forest Road 345 then-106.60071737.670325422603Open pinyon/juniper woodland with scattered cottonwood, ponderosa pine and Douglas fir with white fir on igneous rocky ridge; pinyon/juniper woodland. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James77616Ronald L. Hartman Jeanette Flaig2003622173U.S.A.ColoradoArchuletaEastern San Juan Mountains: San Juan National Forest: Colo Hwy 151, 6 air mi NW of Forest Road 613.-107.3461537.183152017Flood plain, canopy of narrowleaf cottonwood, understory of Rhus trilobata, Juniperus scopulorum, and Shepherdia argentea. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62187B. E. Nelson2004810223U.S.A.ColoradoConejosEastern San Juan Mountains: along Apache Creek just N of New Mexico, ca 1 air mi S of Rio de los Pinos, ca 24 air mi SSW of Antonito.-106.40736.996629723125Creek bank and adjacent areas. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62515B. E. Nelson2004815228U.S.A.ColoradoArchuletaEastern San Juan Mountains: Opal Lake Trailhead and along Opal Lake Trail 564, between Rio Blanco and Flattop Mountain, ca 14.5-15 air mi ESE of Pagosa Springs.-106.762437.203426582804Stony meadow adjacent to the parking area, with patches of willows, cottonwood, and scattered white fir and blue spruce. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62650B. E. Nelson2004815228U.S.A.ColoradoArchuletaEastern San Juan Mountains: northeast end of Mesa Cortado, S of U.S. Hwy 84, ca 17.5-18 air mi SE of Pagosa Springs.-106.850537.072723782530Old roadbed in valley bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62926B. E. Nelson2004818231U.S.A.ColoradoLa PlataEastern San Juan Mountains: along Spring Creek and Forest Road 537 below the mouth of Salt Cnayon, ca 8.5-9 air mi ENE of Ignacio; ca 8 air mi SE of Bayfield.-107.484337.157622192301Stony creek bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62984B. E. Nelson2004822235U.S.A.ColoradoConejosEastern San Juan Mountains: along Rito Hondo ca 3/4 mi above Bighorn Creek, ca 2 3/4 air mi S of Fox Creek; ca 10.5 air mi WSW of Antonito.-106.194937.024225602606Stream channel and adjacent meadows with willow thickets. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3574Jeanette Flaig Kurt Flaig2004530151U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: House Log Creek, Forest Road 41G, 21 air mi W of Saguache.-106.367938.08872635Mesic meadow and creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4116Jeanette Flaig2004614166U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: Seitz Creek, Forest Road 650, 14 air mi NW of Del Norte; S of Cyclone Mountain.-106.523737.7972680Creekside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4453Jeanette Flaig Kurt Flaig2004620172U.S.A.ColoradoMineralEastern San Juan Mountains: Rio Grande National Forest: Forest Road 502, 0.5 mi N of Creede, just N of gaging station.-106.927137.85982727Roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4584Jeanette Flaig2004623175U.S.A.ColoradoConejosEastern San Juan Mountains: Rio Grande National Forest: Conejos River, Spectacle Lake vicinity, Forest Road 250.-106.435637.16372679River shore. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5458Jeanette Flaig200476188U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rock Creek Park, Bishop Rock, Forest Road 28, 16 air mi SSE of Del Norte.-106.283337.4922620Roadside and ephemeral drainage. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5527Jeanette Flaig200478190U.S.A.ColoradoMineralEastern San Juan Mountains: Rio Grande National Forest: E of Coller State Wildlife Area: NW of the overlook, side road off Colo Hwy 149, ca 9 air mi NNW of South Fork.-106.713137.73382712Forest opening and roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7160Jeanette Flaig Kurt Flaig2004731213U.S.A.ColoradoLa PlataEastern San Juan Mountains: San Juan National Forest: Weminuche Wilderness: Eolus and North Eolus Peaks, Needles Creek Trail, N of Chicago Baisin, ca 15.5 air mi SSE of Silverton.-107.669237.610625922792Mixed conifer forest with seeps along river. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7598Jeanette Flaig200489222U.S.A.ColoradoMineralEastern San Juan Mountains: San Juan National Forest: Windy Pass Trail just S of Treasure Falls pullout, U.S. Hwy 160, ca 17 air mi NNE of Pagosa Springs.-106.874437.432126862751Very mesic mixed conifer forest on a west-facing slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James79276Ronald L. Hartman200478190U.S.A.ColoradoConejosEastern San Juan Mountains: Rio Grande National Forest: 3-3.5 air mi S of Fox Creek, mountain immediately to E of Bighorn Creek and Forest Road 28.-106.186337.032725812602Grassy slope with mixed conifers above. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James79678Ronald L. Hartman2004715197U.S.A.ColoradoArchuletaEastern San Juan Mountains: Rio Grande National Forest: campground on Rio Chama W ca 1 air mi along Archuleta Creek.-106.553637.03226762804Spruce/fir and aspen forest on slopes, alder and willow along streams; along the creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James58239B. E. Nelson Erin and Michael Foley200364155U.S.A.ColoradoGrandArapaho National Forest: Middle Park: just E of Willow Creek Reservoir between Willow Creek and County Road 40, ca 4.5 air mi N of Granby.-105.934540.148824512463Along the edge of a small stream and seep area. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James58593B. E. Nelson Erin and Michael Foley200369160U.S.A.ColoradoGilpinArapaho National Forest: Front Range: along Colo Hwy 119 and North Clear Creek, W of Cottonwood Gulch, ca 5 air mi SE of Central City.-105.429439.763822072237Roadside and adjacent steep, rocky slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1042Erin Foley Michael Foley2003620171U.S.A.ColoradoGrandArapaho National Forest: Rabbit Ears Range: Willow Creek just S of Colo Hwy 125, ca 9 air mi NE of Hot Sulphur Springs; ca 9 air mi NW of Granby.-106.032640.19625362597Along creek and roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1338Erin Foley Michael Foley2003624175U.S.A.ColoradoGrandArapaho National Forest: Front Range: along Keyser Creek, ca 0.5 mi W of the junction of Williams Fork and Keyser Creek, ca 12.5 air mi SSE fo Hot Sulphur Springs.-106.086539.895925672829Sagebrush steppe, drainage gullies, and creekside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1510Erin Foley Michael Foley2003624175U.S.A.ColoradoGrandArapaho National Forest: Front Range: Little Muddy Creek and De Koevend Lake, ca 8.5 air mi SE of Hot Sulpher Springs, ca 11 air mi SW of Granby.-106.074639.966524872646Along creek, canal, and sagebrush slopes by lake. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1887Erin Foley2003627178U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: between Clear Lake and Lower Cabin Creek Reservoir on west side of County Road 381.-105.704839.666130423170Along small stream, in adjacent spruce/lodgepole pine forest, and on roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James510Erin Foley Michael Foley2003616167U.S.A.ColoradoGrandArapaho National Forest: Front Range: along Beaver Creek at the junction of Spring and Beaver creeks.-106.009240.030124752634Along stream and adjacent banks. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James767Erin Foley2003618169U.S.A.ColoradoGrandArapaho National Forest: Front Range: Rainbow Bay Picnic Ground, ca 5 air mi NE of Granby.-105.886340.14512530Sagebrush hills and roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James986Erin Foley Michael Foley2003620171U.S.A.ColoradoGrandArapaho National Forest: Middle Park: just N of U.S. Hwy 40, ca 3 mi W of Parshall; ca 9 mi E of Kremmling.-106.232440.06622286Roadside and sagebrush steppe. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James49415B. E. Nelson2000615167U.S.A.ColoradoGrandMiddle Park: along Reeder Creek above County Road 33, ca 3 air mi NW of Williams Fork Reservoir; ca 6.5 air mi E of Kremmling.-106.268240.043823042332Along the creek and lower gravelly slopes. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James61165B. E. Nelson200467159U.S.A.ColoradoGrandMiddle Park: off BLM Road 2757, ca 1 air mi E of County Road 2 and ca 1/3 mi N of Sulphur Springs, ca 7.5 air mi NE of Kremmling.-106.261640.105523622439Deep stony draw and adjacent bushy slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James61229B. E. Nelson Daniel Mullendore2004630182U.S.A.ColoradoGrandMiddle Park: E of County Road 3, ca 2 air mi S of Parshall and ca 2 air mi E of Williams Fork Reservoir, ca 4.5 air mi SW of Hot Sulphur Springs.-106.177940.034723412414Along a rocky drainage channel. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10049Erin Foley2004714196U.S.A.ColoradoGrandMiddle Park: Fishing Access at the junction of Colorado River and Blue River; ca 1 air mi SW of Kremmling and ca 10.5 air mi NE of Radium.-106.395740.04292256Along river. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10709Erin Foley200482215U.S.A.ColoradoGrandMiddle Park: just W of Williams Fork Reservoir on Big Lake Ditch, ca 4 air mi SW of Parshall and ca 9 air mi ESE of Kremmling.-106.235440.01522408Along irrigation ditch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11174Erin Foley200487220U.S.A.ColoradoGrandMiddle Park: Corral Creek, ca 11 air mi E of Kremmling and ca 4 air mi W of Hot Sulphur Springs.-106.193640.068322832378Along creek and adjacent rocky slopes. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11747Erin Foley2004816229U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: along Colo Hwy 103, ca 2.5 air mi WSW of Idaho Springs and ca 7 air mi ENE of Georgetown.-105.562539.72372408Along road. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11765Erin Foley2004818231U.S.A.ColoradoGrandMiddle Park: Hot Sulphur Springs State Wildlife Area: Colorado River Fishing Access from parking area to River, ca 1.5 air mi WNW of Parshall and ca 10 air mi E of Kremmling.-106.207440.0622286Disturbed area adjacent to parking lot through sagebrush. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11804Erin Foley2004818231U.S.A.ColoradoGrandMiddle Park: S of Colorado River, ca 1.5 air mi W of Parshall and ca 10.5 air mi E of Kremmling.-106.205240.052222862463Along fork. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5711Erin Foley2004518139U.S.A.ColoradoGrandGore Range: ca 8 air mi SW of Kremmling off County Road 1or Trough Road, ca 8.5 mi S of the junction of County Road 1 and Colo Hwy 9, along the Colorado River.-106.49139.993521462304Along the river. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5782Erin Foley2004519140U.S.A.ColoradoGrandGore Range: Dry Gulch Spring, ca 1.5 air mi S of Radium and ca 1.5 air mi E of the Colorado River.-106.546739.927722192378Pinyon/juniper forest in drainage gullies of soft sedimentary deposits. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5844Erin Foley2004519140U.S.A.ColoradoGrandGore Range: ca 1 mi W of the Denver and Rio Grande Western Railroad and Radium.-106.562839.952321342256Pinyon/juniper woodland, silty loam and sandy soils along drainage gully. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5919Erin Foley2004520141U.S.A.ColoradoGrandMiddle Park: ca 3.5 air mi SW of Kremmling along Elliott Creek.-106.359640.011223172378In bed of dry creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5954Erin Foley2004521142U.S.A.ColoradoGrandGore Range: ca 0.5 mi N of Radium along the Colorado River.-106.5539.9592073Along river and sandy flats. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6073Erin Foley2004522143U.S.A.ColoradoGrandGore Range: ca 3 air mi ENE of Radium and ca 3 air mi W of Sheep Mountain.-106.498239.95972256Along intermittent stream. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6278Erin Foley2004527148U.S.A.ColoradoGrandMiddle Park: just N of Deer Creek, ca 9 air mi NW of Kremmling and ca 28.5 air mi SE of Steamboat Springs.-106.454340.172823472408Along irrigation canal. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6375Erin Foley2004528149U.S.A.ColoradoGrandWilliams Fork Mountains: ca 10 air mi SE of Kremmling and ca 24 air mi NW of Silverthorne, ca 2 mi E of Colo Hwy 9 off County Road 381.-106.305739.917124572530Along dry intermittent stream. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6677Erin Foley200461153U.S.A.ColoradoGrandMiddle Park: BLM land adjacent to Hot Sulphur Springs State Wildlife Area: ca 1.5 air mi SSW of Hot Sulphur Springs.-106.118940.043223622469Along stream and adjacent banks. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6795Erin Foley200463155U.S.A.ColoradoGrandWilliams Fork Mountains: ca 2 mi NW of Green Mountain Reservoir along Colo Hwy 9.-106.333139.91782332Along small stream through shale/siltstone substrate. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6808Erin Foley200463155U.S.A.ColoradoGrandGore Range: ca 2 air mi NE of Radium and ca 9.5 air mi SW of Kremmling, ca 1 mi W of the Colorado River.-106.537739.979121952286Along stream. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6872Erin Foley200463155U.S.A.ColoradoGrandMiddle Park: Dry Creek along County Road 1, ca 3 air mi SSW of Kremmling and ca 9.5 air mi NE of Radium.-106.39640.01352317Along stream adjacent to sagebrush slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7144Erin Foley200468160U.S.A.ColoradoGrandMiddle Park: just N of Colorado River, off U.S. Hwy 40 between Sulphur Gulch and Rock Creek, ca 7 mi W of Hot Sulphur Springs and 8.5 air mi WNW of Kremmling.-106.230840.066322712426Moist intermittent streambed. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7200Erin Foley200468160U.S.A.ColoradoGrandMiddle Park: ca 8 air mi N of Wolford Mountain and ca 12 air mi N of Kremmling.-106.386140.22242347Heavily grazed drainage valley. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7581Erin Foley Tony Sloan2004612164U.S.A.ColoradoGrandMiddle Park: ca 10.5 air mi NNE of Kremmling and ca 6 mi NNE of Wolford Mountain.-106.371540.189323902451Moist intermittent streambed and adjacent sagebrush slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7844Erin Foley2004617169U.S.A.ColoradoGrandMiddle Park: Rock Creek, ca 3 air mi NW of Parshall and ca 10 air mi ENE of Kremmling.-106.213640.09022317Along creek and adjacent fine sediment, sloping banks. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7923Erin Foley2004617169U.S.A.ColoradoGrandWindy Gap, ca 2.5 air mi NW Granby and ca 7.5 air mi NE of Hot Sulphur Springs.-105.977640.110724082451Riparian seep dominated by Carex ssp.; adjacent to sagebrush. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8547Erin Foley2004626178U.S.A.ColoradoGrandMiddle Park: Corral Creek, ca 1.5 air mi NNW of Parshall and ca 4 air mi W of Hot Sulphur Springs.-106.185840.077727922878Deep drainage gully. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9364Erin Foley200476188U.S.A.ColoradoGrandGore Range: Dice Hill, ca 29 air mi NW of Silverthorne and 9 air mi SSW of Kremmling.-106.443739.945228652926Roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9724Erin Foley2004710192U.S.A.ColoradoGrandMiddle Park: Sulphur Gulch, ca 6 air mi WNW of Kremmling and ca 9 air mi W of Hot Sulphur Springs.-106.273740.07062317Gulch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9881Erin Foley2004712194U.S.A.ColoradoGrandMiddle Park: Muddy Creek, ca 2 air mi NNW of Kremmling and ca 2 air mi SW of Wolford Mountain.-106.407340.086422432317Along creek. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James31198B. E. Nelson Laura Welp199465156U.S.A.WyomingFremontGreat Divide Basin Area: Crooks Mountain: along Cottonwood Creek at the foot of the mountain on the north side, ca 9 air mi SW of Jeffrey City; ca 48.5 air mi SE of Lander.-107.977842.413621342146Rocky bench and along small stream. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3243Laura Welp199485217U.S.A.WyomingCarbonGreat Divide Basin Area: Great Divide Basin: Separation Spring on Rendle Rim ca 2 air mi W of Dry Lake; ca 4 air mi SE of Rendle Point.-107.26541.96583320182073Open spring with steep banks on southeast-facing sagebrush slope; thickets of Salix line banks; loose, shaly soil. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3349Laura Welp1994810222U.S.A.WyomingFremont[location and coordinates withheld]17561859Sandstone slickrock pour-off; sparsely vegetated. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3572Laura Welp1994813225U.S.A.WyomingFremont[location and coordinates withheld]1963Near creek in dry graminoid rolling hills; fine silty soil. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7103Laura Welp199581213U.S.A.WyomingFremont[location and coordinates withheld]20122045Along creek with dense grasses. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7282Laura Welp199584216U.S.A.WyomingFremontGreat Divide Basin Area: Green Mountain: East Cottonwood Creek, ca 13 air mi W of Three Forks; ca 13.5 air mi SE of Jeffrey City.-107.687542.369522862378Moist shaded creekside with dense grasses, scattered Populus and pine; thick organic soil. Phenology: vegetative only.RMRM626024 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James46815Ronald L. Hartman1994626177U.S.A.WyomingTetonGros Ventre Area: Crystal Creek Campground (overflow), ca 4 air mi E of upper end of Lower Slide Lake.-110.417143.61962158Grassy meadows, disturbed areas, and edge of river. Phenology: vegetative only.RMRM626025 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James48035Ronald L. Hartman1994712193U.S.A.WyomingTetonGros Ventre Area: Game Creek, ca 6-7 air mi N of Hoback Junction.-110.704443.413919812012Open stream area and lower slopes, calcareous. Phenology: vegetative only.RMRM626026 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James49613Ronald L. Hartman1994819231U.S.A.WyomingTetonGros Ventre Area: southwest end and side of Lower Slide Lake.-110.536643.6342103Shore line and lower wooded slopes. Phenology: vegetative only.RMRM626027 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James49933Ronald L. Hartman1994822234U.S.A.WyomingTeton[location and coordinates withheld]1829Along waterway and upslope. Phenology: vegetative only.RMRM659334 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51585Ronald L. Hartman1995628179U.S.A.WyomingTetonGros Ventre Area: ca 7 air mi NE of Jackson.-110.636243.547620732103Fen and surrounding sagebrush plains. Phenology: vegetative only.RMRM659335 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James52496Ronald L. Hartman Stuart Markow1995723204U.S.A.WyomingSubletteGros Ventre Area: ca 5 air mi NW of Bondurant.-110.469443.24232256Along river. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11582Stuart Markow1998523143U.S.A.WyomingTetonGrand Teton National Park: sagebrush flat on west side of Gros Ventre Campground, ca 2 air mi SW of Kelly; 10.5 air mi N of Jackson.1981Moist depression adjacent to roadside with cottonwoods, conifers and forbs; highly disturbed.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11697Stuart Markow Heather Marks199885217U.S.A.WyomingTetonGrand Teton National Park: wildlife lookout and surrounding area, ca 1.5 air mi SW of Moose on Moose-Wilson Road, ca 13 air mi N of Jackson.1981Sagebrush-steppe on 40 deg. east-facing slope, dominated by Artemisia tridentata, Elymus spicatus, Artemisia dracunculus, Amelanchier alnifolia and Balsamorhiza sagittata.RMRM659329 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51003Ronald L. Hartman Stuart Markow1995622173U.S.A.WyomingTetonMount Leidy Highland Area: South Fork Ditch Creek, ca 0.2-1 air mi upstream from Ditch Creek Road.-110.556543.691622252271Moist stream bottom. Phenology: vegetative only.RMRM659330 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51142Ronald L. Hartman1995623174U.S.A.WyomingTetonMount Leidy Highland Area: Road (FS 30160) 0.7 road mi SW of Hatchet Campground.-110.367243.822422252256Sandy soil with patches of lodgepole pine, aspen, and occasional pond. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51387Ronald L. Hartman1995626177U.S.A.WyomingTetonMount Leidy Highland Area: Gros Ventre River Road, ca 2 air mi E of Forest boundary; just W to overlooking Lower Slide Lake, on the north side.21032134Roadside and outcrops. Phenology: fruiting.RMRM659332 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51525Ronald L. Hartman1995628179U.S.A.WyomingTetonMount Leidy Highland Area: Dry Cottonwood Creek, 1-2 air mi upstream; 2-3 air mi E of east end of Upper Slide Lake.-110.257743.590822562317Stream bottom and benches. Phenology: vegetative only.RMRM659336 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James53163Ronald L. Hartman1995725206U.S.A.WyomingTetonMount Leidy Highland Area: 2-4.5 air mi E of Black Rock Ranger Station.-110.306943.822421952378Mountain slope and roadside. Phenology: vegetative only.RMRM785740 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1943Daniel T. Busemeyer Leland Crane, David M. Ketzner, Mary Ann Feist, Richard L. Larimore,2004615167U.S.A.WyomingWashakieTensleep Preserve, The Nature Conservancy: southwest flank, foothills of the Big Horn Mountains, ca 10 mi E of Ten Sleep, Canyon Creek watershed, bottom of Canyon Creek Canyon. Old Maid Gulch quad.-107.277744.01271637Foung growing with Populus angustifolia, Acer negundo, Rosa woodsii, Cornus sericea, Elymus trachycaulus var. andinus, Lappula redowskii, Galium triflorum, Cystopteris fragilis, Corallorhiza striata, C. maculata var. occidentalis, Osmorhiza berteroi, Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James578Emily A. Holt200068160U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: Chalk Bluffs area below Mount Princeton, at the Colorado Trailhead, ca 7 road mi on County Road 162 from U.S. Hwy 285, ca 8 air mi WSW of Nathrop, ca 10 air mi SW of Buena Vista.-106.1938.718525602682Pinus ponderosa and P. edulis forest to mixed forest on talus slope. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66647Ronald L. Hartman Emily Holt2000522143U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: Pass Creek, 3 air mi W of Poncha Springs.-106.142538.502425002530Pinyon-juniper covered slope with irrigation ditch. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66735Ronald L. Hartman Emily Holt2000522143U.S.A.ColoradoChaffeeCentral Colorado: Mosquito Range, East Slope Continental Divide: Browns Canyon on the Arkansas River, ca 10 air mi NW of Salida.-106.052138.643522252317Granite rock outcrops and area along river. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66750Ronald L. Hartman Emily Holt2000523144U.S.A.ColoradoEagleCentral Colorado: Castle Peak Area, West Slope Continental Divide: Trail Gulch on BLM Road 301, ca 7 air mi NNW of Gypsum.-107.001139.750219962091Gypsum barren slopes. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66856Ronald L. Hartman Emily Holt2000525146U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: County Road 306, ca 7 air mi WSW of Buena Vista.-106.227138.804926822743Intrusive substrate, steep gravel slopes in pinyon pine, ponderosa pine, and Ribes. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66971Ronald L. Hartman Emily Holt2000525146U.S.A.ColoradoChaffeeCentral Colorado: Mosquito Range, East Slope Continental Divide: Ruby Mountain and vicinity, ca 8 air mi SSE of Buena Vista.-106.062538.761523472682Pinyon pine slopes. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4419Emily A. Holt2001515135U.S.A.ColoradoEagleCentral Colorado: Castle Peak Area, West Slope Continental Divide: 2 road mi on County Road 33, ca 2 air mi N of Eagle, immediately after gate, along road and to the W.-106.827939.706221952378Pinyon-juniper woodland on east aspect. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4593Emily A. Holt2001518138U.S.A.ColoradoEagleCentral Colorado: Castle Peak Area, West Slope Continental Divide: off County Road 30, just SW of Colorado River crossing at Catamount Recreation Site, ca 7 air mi WSW of McCoy.-106.847239.897220122073Palustrine wetland along river with oak and sagebrush. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4695Emily A. Holt2001519139U.S.A.ColoradoEagleCentral Colorado: Hardscrabble Mountain Area, West Slope Continental Divide: Horse Pasture Recreation Site, along Eagle River off U.S. Hwy 6, south side of highway, ca 2 air mi W of Gypsum.-106.982339.64741935Palustrine wetland along river, dominated by cottonwoods. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4793Emily A. Holt2001521141U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: Graphite Ridge area, on County Road 185 with marble quarry to E (mine), ca 8 air mi NNE of Salida.-105.961538.642328653048Ponderosa and pinyon with bare slopes with Chrysothamnus and Cercocarpus, and marble-sandstone soils. Phenology: flowering & fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4838Emily A. Holt2001528148U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: near the Crater, not far off Forest Road 181A, ca 5 air mi NE of Salida.-105.925338.571726822804Mixed habitat, including roadside vegetation and pinyon-juniper woodlands. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5432Emily A. Holt2001618169U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: off Forest Road 340A just beyond the sand pit, hill on south side of road, ca 4.5 air mi W of Buena Vista.-106.210938.833525602621Ponderosa and pinyon forest. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7435Emily A. Holt Benjamin Madsen2001731212U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: on west side of Arkansas River just N of Browns Canyon, at railroad bridge, ca 4 air mi NE of Hecla Junction.-106.05238.68462317Palustrine wetland along river. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5579Joy Handley Denise L. Fairbanks2000617169U.S.A.IdahoAdamsPayette National Forest and Vicinity: Salmon River Mountains: Bear Basin and along Forest Road 452, ca 4 air mi NW of McCall; ca 7 air mi ESE of New Meadows.-116.13744.955416151646Roadside, moist, mixed conifer overstory. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7093Joy Handley B. E. Nelson2000718200U.S.A.IdahoValleyPayette National Forest and Vicinity: Salmon River Mountains: Boulder Lake Trail from parking lot to western edge of Boulder Lake, ca 8 air mi ESE of McCall; ca 12 air mi NE of Donnely.-115.953544.868418902134Moist areas along trail. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17859B. E. Nelson Michelle Nelson198988220U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: In canyon along Rock Creek, ca 16.5 air mi SE of Yampa, ca 4 air mi NNE of McCoy.-106.712239.970721952256Creek banks and low bench.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17957B. E. Nelson Michelle Nelson198988220U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: along Yarmony Creek at the southeast base of Congor Mesa, ca 20 air mi SE of Yampa; ca 1.5 air mi NE of Copper Spur.-106.673639.92662256Brushy stream bottom.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James18008B. E. Nelson Michelle Nelson198988220U.S.A.ColoradoGrand[location and coordinates withheld]2164Brushy stream bottom with scattered narrowleaf cottonwood, Douglas fir, and blue spruce.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4754Neil Snow198983215U.S.A.ColoradoRoutt[location and coordinates withheld]21032530Parking area near trailhead.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4830Neil Snow198983215U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: vicinity of Mad Creek Trail, ca 7 air mi NNW of Steamboat Springs.-106.873240.579121032530Near trail.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1318Tom Cramer Jane T. Kellett1994628179U.S.A.WyomingLincolnSouthern Salt River Range and Vicinity: Southern Sublette Range: Chalk Creek, ca 7 air mi N of Cokeville.-110.95888942.18638919512317Hillside seeps, streamside, and sagebrush canyon bottom. Phenology: vegetative only.RMRM608883 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3943Thomas Cramer1994815227U.S.A.WyomingLincolnSouthern Salt River Range and Vicinity: Nugget Canyon, just S of Nugget.-110.818341.825619812073Pondside willows and sagebrush, adjacent sagebrush, and open hillside. Phenology: vegetative only.RMRM644924 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7604Thomas Cramer Jane T. Kellett1995711192U.S.A.WyomingLincolnSouthern Salt River Range and Vicinity: ca 13.5 air mi N of Cokeville; Sublette Range at Raymond Creek.-111.023142.271951Creek bottom with birch, chokecherry, Cornus, and willow thickets. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1004Kevin J. Taylor199766157U.S.A.ColoradoGunnisonNorthern Gunnison Basin: along Beaver Creek, ca 7 air mi WNW of Gunnison.-107.066138.565225152560Along the creek. Phenology: flowering.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1183Kevin J. Taylor1997610161U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 4 air mi NNE of Almont.-106.804338.718325602835Steep drainage; Douglas fir, juniper, aspen, and Colorado blue spruce. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1344Kevin J. Taylor1997613164U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 18 air mi W of Gunnison.-107.247938.53627282881Narrowleaf cottonwood drainage. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1493Kevin J. Taylor1997614165U.S.A.ColoradoGunnisonNorthern Gunnison Basin: along Curecanti Creek, ca 6.5 air mi NW of Sapinero.-107.393438.521524842530Along the creek and dirt road. Phenology: flowering.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2219Kevin J. Taylor1997627178U.S.A.ColoradoGunnisonNorthern Gunnison Basin: Raggeds Wilderness: ca 5 air mi NW of Kebler Pass.-107.172838.895626822728Aspen woods, serviceberry, elderberry, snowberry. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2285Kevin J. Taylor1997628179U.S.A.ColoradoGunnisonNorthern Gunnison Basin: Raggeds Wilderness: Dark Canyon, ca 8.5 air mi NW of Kebler Pass.-107.191438.95432195Canyon slope; aspen, snowberry, dogwood, Rocky Mountain maple. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James716Kevin J. Taylor1997530150U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3.5 air mi NE of Gunnison.-106.86638.594423782439Sagebrush meadow. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James811Kevin J. Taylor199761152U.S.A.ColoradoDeltaNorthern Gunnison Basin: ca 5.5 air mi NE of Crawford.-107.545338.763625602621Oak shrubland. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James881Kevin J. Taylor199762153U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 8.5 air mi E of Crawford.-107.452138.719622862378Spruce-fir-aspen forest. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James56276Ronald L. Hartman Kevin J. Taylor1997516136U.S.A.ColoradoDeltaNorthern Gunnison Basin: Elephant Hill, west portion, ca 2.5 air mi ESE of Paonia.-107.545338.851617742048Squaw-apple, serviceberry, mountain mahogany, and juniper zone below and sparsely vegetated shale slopes above with some pinyon-juniper. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James56465Ronald L. Hartman Kevin J. Taylor1997519139U.S.A.ColoradoGunnisonNorthern Gunnison Basin: Beaver Reservoir to 1 mi NW.-107.452138.822323782500Aspen slopes with Gambel oak-serviceberry above and spruce, subalpine fir, and cottonwood lined stream bottoms below. Phenology: vegetative only.RM778433 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10619Kevin J. Taylor1998817229U.S.A.ColoradoGunnisonNorthern Gunnison Basin: along Anthracite Creek, ca 4 air mi E of Paonia Reservoir.-107.247338.95432103Along creek; Colorado blue spruce and oak. Phenology: vegetative only.RM778463 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4882Kevin J. Taylor1998515135U.S.A.ColoradoDeltaNorthern Gunnison Basin: ca 4 air mi NNE of Crawford.-107.601138.76361890Pinyon pine and juniper forest; Cercocarpus and Amelanchier. Phenology: flowering.RM778462 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5211Kevin J. Taylor1998524144U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 9 air mi ESE of Gunnison.-106.77538.521523472393Sagebrush slope and drainage. Phenology: vegetative only.RM778461 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5245Kevin J. Taylor1998524144U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 4 air mi E of Gunnison.-106.847838.550623472393Sagebrush meadows. Phenology: vegetative only.RM778460 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5303Kevin J. Taylor1998527147U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3.5 air mi NW of Gunnison.-106.993338.565224392484Sagebrush hills. Phenology: fruiting.RM778459 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5379Kevin J. Taylor1998528148U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 12 air mi WSW of Gunnison.-107.138838.50692439Along drainage along dirt road; Populus, Salix, Amelanchier, and Ribes. Phenology: vegetative only.RM778458 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5417Kevin J. Taylor1998528148U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 6 air mi NNW of Gunnison.-106.956938.62362408Sagebrush; Amelanchier, Symphoricarpos; selenium odor present. Phenology: vegetative only.RM778457 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5806Kevin J. Taylor199864155U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 14 air mi WSW of Gunnison.-107.175238.492322712362Sagebrush meadow; Quercus, Amelanchier, juniper, and Purshia. Phenology: vegetative only.RM778456 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5990bKevin J. Taylor199867158U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3/4 air mi NW of southern edge of Paonia Reservoir.-107.35938.954322562301Southeast-facing slope; Quercus, juniper, and Douglas-fir. Phenology: vegetative only.RM778455 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6010Kevin J. Taylor199867158U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 0.5 air mi N of southern edge of Paonia Reservoir.-107.340438.954319812134Steep, northeast-facing slope down drainage; aspen, Douglas-fir, Amelanchier, Prunus, Symphoricarpos, and Quercus. Phenology: vegetative only.RM778454 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6080Kevin J. Taylor199867158U.S.A.ColoradoDeltaNorthern Gunnison Basin: ca 2 air mi NNW of Paonia.-107.601138.895619512012Pinyon/juniper forest; Amelanchier, Cercocarpus, Peraphyllum, and Bromus tectorum. Phenology: vegetative only.RM778453 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6097Kevin J. Taylor199868159U.S.A.ColoradoDeltaNorthern Gunnison Basin: near West Fork of Terror Creek, ca 7 air mi NNW of Paonia.-107.619838.9692347Aspen forest near creek and forest openings; Picea pungens, Amelanchier, Quercus, and Prunus. Phenology: vegetative only.RM778452 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6226Kevin J. Taylor199868159U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 4 air mi E of Paonia Reservoir.-107.265938.954321032347Aspen/Douglas-fir forest; Amelanchier, Sorbus, Prunus, and Symphoricarpos. Phenology: vegetative only.RM778451 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6620Kevin J. Taylor1998615166U.S.A.ColoradoDeltaNorthern Gunnison Basin: along Terror Creek Reservoir, ca 8 air mi NNE of Paonia.-107.563938.98372500Along reservoir. Phenology: vegetative only.RM778439 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6791Kevin J. Taylor1998616167U.S.A.ColoradoGunnisonNorthern Gunnison Basin: along Snowshoe Creek, ca 3.5 air mi SE of Paonia Reservoir.-107.284538.9252134Along creek; Salix, Cornus, Alnus, Amelanchier, Symphoricarpos, aspen, and Populus angustifolia. Phenology: vegetative only.RM778438 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7158Kevin J. Taylor1998626177U.S.A.ColoradoGunnison[location and coordinates withheld]1935Along creek. Phenology: vegetative only.RM778437 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8546Kevin J. Taylor1998715196U.S.A.ColoradoGunnisonNorthern Gunnison Basin: along Smith Fork Creek, ca 6.5 air mi ENE of Crawford.-107.489438.71962240Along creek. Phenology: vegetative only.RM778436 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8934Kevin J. Taylor John Gutrich1998720201U.S.A.ColoradoGunnison[location and coordinates withheld]2286Uplands near constructed wetland along river. Phenology: vegetative only.RM778435 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9362Kevin J. Taylor1998725206U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 4.5 air mi ESE of Parlin.-106.647738.49232469Wet drainage (no surface water); Salix and Pentaphylloides. Phenology: vegetative only.RM778434 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9513Kevin J. Taylor1998725206U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 1 air mi E of Parlin.-106.702338.50692500Drainage and irrigation ditch; sagebrush, cottonwood, and Salix. Phenology: vegetative only.RMRM563317 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James233Robert S. Kirkpatrick Ruth E. B. Kirkpatrick1983625176U.S.A.WyomingParkAbsaroka Mountains: ca 16 mi W of Meeteetse, along Rawhide Creek.-109.063144.20412317Creek bottoms and adjacent wet areas with Populus tremuloides and P. tricho.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James104Gwen Kittel1989517137U.S.A.ColoradoLarimerRiparian Plants of the Cache la Poudre River: Picnic Rock Day Area along river, ac 2 mi W of Teds Place on Colo Hwy 141600Cobbly riverbank in wet sand with Populus angustifolia and Bromus tectorum.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2017Amy J. Roderick1997710191U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: North Platte River, N of Bennett Peak, ca 16.8 air mi SE of Saratoga; ca 11 air mi NE of Encampment.-106.595741.26842207Cottonwood and willow lined area adjacent to river. Phenology: fruiting.RMRM945744 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James65686B. E. Nelson2005727208U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Rancho del Rio Grande Grant: along Rio Chiquito on Forest Road 437, ca 1.5 air mi W of Tombe; ca 4 air mi ESE of Ranchos de Taos.-105.539936.329722562286Canyon bottom. Phenology: vegetative only.RMRM945743 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James65735B. E. Nelson2005728209U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Rancho del Rio Grande Grant: along Rio Chiquito on Forest Road 437, ca 1 air mi S of Pinoreal Peak, ca 6.5 air mi SE of Ranchos de Taos.-105.506336.304624392560Old beaver ponds and along the river. Phenology: vegetative only.RMRM945742 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66453B. E. Nelson200588220U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Laguna Larga at the end of Forest Road 78, ca 6 air mi SE of San Miguel; ca 18 air mi NNW of Tres Piedras.-106.109536.885527432750Lake shore and adjacent areas. Phenology: vegetative only.RMRM945758 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James115Jill E. Larson Robert Peters2005522142U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Rio de Truchas, Forest Road 697, ca 3 air mi NW of Truchas.-105.870836.08482149Ephemeral stream riparian area and mesa top with pinyon/juniper and Quercus gambelii. Phenology: vegetative only.RMRM945750 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1188Jill E. Larson2005617168U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Sangre de Cristo Range: Santa Barbara Campground at end of Forest Road 116, ca 8.5 air mi SE of Penasco.-105.610836.090727132774Stream riparian and spruce-fir forest. Phenology: vegetative only.RMRM945749 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1434Jill E. Larson2005621172U.S.A.New MexicoTaosCarson National Forest and Vicinity: Yerba Canyon, Forest Trail 61 off NM Hwy 150, ca 10 air mi NE of Arroyo Seco.-105.529636.579425302835Small stream riparian and canyon bottom. Phenology: vegetative only.RMRM945748 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1697Jill E. Larson2005630181U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Cisneros Park off Forest Road 133, ca 14 air mi NW of Tres Piedras.-106.130736.76692820Meadow grassland and edge of adjacent ponderosa pine and Douglas fir forest. Phenology: vegetative only.RMRM945747 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1755Jill E. Larson200571182U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Fawn Lakes off NM Hwy 38, ca 3 air mi W of Red River.-105.453436.70842591Riparian area of small lake chain; public recreation area. Phenology: vegetative only.RMRM945757 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James182Jill E. Larson2005524144U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: ca 3.5 air mi NW of El Rito, El Rito Canyon Campground.-106.24636.39582286Riparian along creek; forested canyon slope with Abies concolor and Pinus ponderosa. Phenology: vegetative only.RMRM945746 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3069Jill E. Larson2005724205U.S.A.New MexicoTaos[location and coordinates withheld]2637Canyon slopes, side drainage with white fir and Douglas fir; creek riparian. Phenology: vegetative only.RMRM945756 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James381Jill E. Larson2005531151U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: La Madera Canyon, NM Hwy 111 along Rio Vallecitos, ca 3 air mi S of Vallecitos.-106.076336.451421492439Riparian, old mica mine site and pinyon/juniper canyon wall and ridge line. Phenology: vegetative only.RMRM945755 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James413Jill E. Larson2005531151U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canada del Oso, ca 2 air mi N of Canyon Plaza, Forest Road 42/ NM Hwy 111.-106.149536.573325002560Riparian and Pinus ponderosa forest. Phenology: vegetative only.RMRM945745 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4455Jill E. Larson2005818230U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canyon Atencio on Forest Road 494, ca 8 air mi WSW of Los Pinos.-106.203936.9732911Roadside in steep walled canyon with ponderosa pine and Populus angustifolia. Phenology: vegetative only.RMRM945754 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James475Jill E. Larson200561152U.S.A.New MexicoTaosCarson National Forest and Vicinity: Forest Road 10, Capulin Canyon near trailhead, ca 6 air mi E of Taos.-105.47136.386625302576Riparian, roadside and Pinus ponderosa/mixed conifer forest. Phenology: fruiting.RMRM945753 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James775Jill E. Larson200567158U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: junction of Forest roads 559 and 124 at Canjilon Creek, ca 3 air mi NE of Canjilon.-106.401436.507625002591Slopes with Quercus gambelii and riparian area. Phenology: vegetative only.RMRM945752 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James801Jill E. Larson200567158U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: junction of Forest roads 559 and 124 at Canjilon Creek, ca 3 air mi NE of Canjilon.-106.401436.507625002591Slopes with Quercus gambelii and riparian area. Phenology: vegetative only.RMRM945751 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James882Jill E. Larson200569160U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Forest Road 438 on Rito de la Olla, ca 7 air mi SE of Talpa.-105.529436.262424232606Riparian area and rocky south aspect slope with pinyon/juniper and ponderosa pine. Phenology: vegetative only.RMRM945741 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James80463Ronald L. Hartman Jill E. Larson2005517137U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Hondo Canyon along Forest Road 606, SE of NM Hwy 68, up Hondo Canyon Creek 0.6 air mi.-105.717536.292522402317Riparian with Populus angustifolia, Salix, Alnus, and Betula. Phenology: vegetative only.RMRM945740 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James80620Ronald L. Hartman Jill E. Larson2005518138U.S.A.New MexicoTaosCarson National Forest and Vicinity: bottom of La Junta Trail to Big Arsenic Trail and back to Little Arsenic Trail to top of rimrock.-105.690636.653420122073Riparian to rocky slopes near river. Phenology: vegetative only.RMRM945739 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James80754Ronald L. Hartman Jill E. Larson2005521141U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Cimarron Range: Colin Neblett Wildlife Area: Cimamon Canyon, 1-2 air mi E of Tolby Creek Campground (near bench mark 7873).-105.182536.52562408Stream banks and picnic area. Phenology: vegetative only.RMRM945738 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James80820Ronald L. Hartman2005524144U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Rio Hondo at entrance to National Forest on NM Hwy 150 on road to Taos Ski Area.-105.556336.54182341Riparian. Phenology: vegetative only.RMRM945737 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James81139Ronald L. Hartman2005722203U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Rio de los Pinos, ca 0.6 air mi SW of Los Pinos.-106.073836.982924392560Igneous cap rock and rocky slope. Phenology: vegetative only.RMRM945736 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James81185Ronald L. Hartman2005722203U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Rio de los Pinos, ca 7 air mi WSW of Los Pinos.-106.187336.95792545Streamside up to road. Phenology: vegetative only.RMRM955880 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James67671B. E. Nelson200658128U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: just off Forest Road 576 and south to Coyote Canyon, ca 1 1/4 air mi W of U.S. Hwy 285, ca 4.5 air mi NNW of Tres Piedras.-106.004436.7125452560Bottom of a ravine. Phenology: vegetative only.RMRM955862 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James67709B. E. Nelson2006510130U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: on Forest Road 44A along Canada del Potrero to Arroyo Seco, ca 4 air mi N of El Rito; ca 28.5 air mi SE of Tierra Amarilla.-106.201236.399122562268Meadows and flats along the drainage channel in narrowleaf cottonwood grove. Phenology: vegetative only.RMRM955861 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James67722B. E. Nelson2006510130U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: along Forest Road 44A and Arroyo Seco, ca 3 air mi N of El Rito; ca 29 air mi SE of Tierra Amarilla.-106.199136.39042225Old home site and along the stream channel. Phenology: vegetative only.RMRM955860 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68041B. E. Nelson2006518138U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Lopez Canyon off Forest Road 337, ca 3.5 air mi SE of Canjilon.-106.383636.459124392518Flats along stream in canyon bottom. Phenology: vegetative only.RMRM955859 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James69483B. E. Nelson200688220U.S.A.New MexicoMoraCarson National Forest and Vicinity: Santa Fe Mountains: along NM Hwy 518 from forest boundary SW ca 3/4 mi, above Vigil Canyon, ca 9.5 air mi NW of Mora.-105.440136.079727922841Roadside and adjacent shale roadcut. Phenology: vegetative only.RMRM955865 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10117Jill E. Larson2006811223U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Cimarron Range: Colin Neblett State Wildlife Area: Tolby Creek ca 1.5 air mi S of Cimarron Canyon and U.S. Hwy 64, ca 3 air mi ESE of Eagle Nest, ca 1.5 air mi E of east shore of Eagle Nest Lake.-105.224736.536625912667Along creek with Alnus tenuifolia, Rosa, Rudbeckia laciniata var. ampla, and Rubus. Phenology: vegetative only.RMRM955864 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10584Jill E. Larson2006819231U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: San Cristobal Canyon Trailhead and along trail in canyon, ca 3 air mi NE of San Cristobal; ca 2 air mi SSE of Lama.-105.608836.619624872865Old road bed near creek and riparian area lined with Alnus tenuifolia. Phenology: vegetative only.RMRM955863 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10914Jill E. Larson2006822234U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canyon de los Alamos accessed from NM Hwy 519 and Forest Road 222 near Salt Lick Spring, ca 2 air mi NE of La Madera; ca 2.5 air mi SE of Anacones.-106.020236.410220572134Along bottom and sides of dry wash with Quercus gambelii and Juniperus scopulorum. Phenology: vegetative only.RMRM955879 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4920Jill E. Larson2006518138U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: NM Hwy 580 along South Fork Embudo Creek, ca 3 air mi SSE of Dixon.-105.821136.16751966Riparian area along creek with Populus species and Tamarix. Phenology: vegetative only.RMRM955878 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5239Jill E. Larson2006527147U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 222 in Canada de la Aqua and Red Mesa, ca 0.5 mi N of Las Tablas.-106.024636.56472371Riparian area and old roadbed along stream lined with Berberis fendleri. Phenology: vegetative only.RMRM955877 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5573Jill E. Larson Cheryl Archuleta200661152U.S.A.New MexicoTaosCarson National Forest and Vicinity: Picuris Pueblo Indian Reservation: canyon east of Picuris Canyon, ca 2 air mi NE of Picuris Pueblo, ca 4 air N of Penasco.-105.711336.21662317Roadside with stream and rock outcrop with Salix species and Populus angustifolia. Phenology: vegetative only.RMRM955876 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5633aJill E. Larson200661152U.S.A.New MexicoTaosCarson National Forest and Vicinity: Picuris Pueblo Indian Reservation: Pu-na Lake at Picuris Pueblo.-105.707936.19932195Area adjacent to lake and stream flowing into the river. Phenology: vegetative only.RMRM955875 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5770Jill E. Larson James Lucero200665156U.S.A.New MexicoTaosCarson National Forest and Vicinity: Pueblo de Taos Indian Reservation: Rio Pueblo de Taos and south slopes of Pueblo Canyon, ca 6 air mi E of Taos Pueblo.-105.451336.439523232576Lightly disturbed camping area at end of road with large Pinus ponderosa and riparian area of stream. Phenology: vegetative only.RMRM955874 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5866Jill E. Larson James Lucero200665156U.S.A.New MexicoTaosCarson National Forest and Vicinity: Pueblo de Taos Indian Reservation: along concrete irrigation ditch, Tenorio Tract area E of Rio Lucero, ca 4.5 mi N of Taos Pueblo.-105.545136.496723622439Roadside with Salix species; pinyon/juniper woodland with Quercus gambelii. Phenology: fruiting.RMRM955873 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5918Jill E. Larson James Lucero200665156U.S.A.New MexicoTaosCarson National Forest and Vicinity: Pueblo de Taos Indian Reservation: Rio Lucero head gate and gaging station, ca 2.5 air mi ESE of Arroyo Seco, ca 6 air mi N of Taos Pueblo.-105.531536.50752469Riparian zone of river with Alnus tenuifolia and Populus angustifolia. Phenology: vegetative only.RMRM955872 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6017Jill E. Larson200668159U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Arroyo Seco and surrounding hills, Forest Road 44 at north boundary of Juan Jose Lobato Grant, ca 2 air mi N of El Rito.-106.196936.376521952378Riparian area of dry stream by road. Phenology: vegetative only.RMRM955871 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6069Jill E. Larson200668159U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canada del Aqua and surrounding slopes at Forest Road 44, ca 1 3/4 air mi S of Borracho Ranger Station and ca 2 air mi SSW of Vallecitos.-106.143136.467923622423Moist area at canyon bottom with Poa pratensis. Phenology: vegetative only.RMRM955870 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6297Jill E. Larson2006612163U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 173 in Canyon Largo, E of El Rito Canyon, ca 6 air mi NNW of El Rito.-106.254336.419324392545Dry stream bed in canyon bottom. Phenology: vegetative only.RMRM955869 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7044Jill E. Larson2006621172U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 94, ca 2 air mi S fo Las Placitas, just S of CCC Spring.-106.164836.29011981Dry wash with Salix and Rhus trilobata. Phenology: vegetative only.RMRM955868 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7376Jill E. Larson James Lucero2006629180U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Pueblo de Taos Indian Reservation: Lucero Canyon from footbridge to Martinez Canyon; trail along Rio Lucero, ca 6 air mi E of Arroyo Seco and ca 5 air mi S of Twining.-105.464936.511225302835Moist areas along stream and along trail in canyon bottom. Phenology: vegetative only.RMRM955867 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8408Jill E. Larson2006715196U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: along Middle Ponil Creek S toward Greenwood Canyon from Forest Road 1910, ca 13 air mi E of Red River and ca 2 mi N of Forest Boundary.-105.181836.72472591Along stream with occasional conifers and Alnus, Populus, and Salix species. Phenology: vegetative only.RMRM955866 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8614Jill E. Larson2006717198U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 133 above cattle guard, ca 2 1/4 air mi S of Rio San Antonio, ca 15 air mi NW of Tres Piedras.-106.122736.818427432804Stream drainage (currently dry) with occasional Populus, Hordeum jubatum, and Phleum pratense. Phenology: vegetative only.RMRM955858 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James82091Ronald L. Hartman2006522142U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: ca 6 air mi SE of Dixon.-105.83136.17251945Sandy draw and stream bottom. Phenology: vegetative only.RMRM955857 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James82100Ronald L. Hartman2006522142U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: ca 6 air mi SE of Dixon.-105.83136.17251945Sandy draw and stream bottom. Phenology: fruiting.RMRM955856 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James82190Ronald L. Hartman2006524144U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: ca 1.5 air mi SW of El Valle; 3 air mi S of Trampas.-105.743136.09812523Streamside and sandy slopes. Phenology: vegetative only.RMRM955855 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James83137Ronald L. Hartman2006813225U.S.A.New MexicoTaos[location and coordinates withheld]24262439Canyon slopes and bottom.RMRM955854 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James83399Ronald L. Hartman2006815227U.S.A.New MexicoTaosCarson National Forest and Vicinity: Arroyo Aquaje de la Petaca.-105.964836.69272469Arroyo bottom by collapsed bridge. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James52549B. E. Nelson Luanne Lum2001610161U.S.A.WyomingParkBighorn Basin: along Spring Creek, ca 11 air mi E of the summit of Carter Mountain, ca 6.5 air mi NE of Pitchfork; ca 10 air mi W of Meeteetse.-109.065544.19052048Meadows and bench along the stream. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James52633B. E. Nelson Luanne Lum2001610161U.S.A.WyomingBig HornBighorn Basin: along Lane 42 ca 3 air mi N of Sheep Mountain and ca 0.3 mi S of the Greybull River, ca 4 air mi S of Burlington; ca 19.5 air mi W of Basin.-108.419944.37861341Roadside on wooded clay flats with irrigation ditch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1048Luanne Lum2001724205U.S.A.WyomingParkBighorn Basin: along Heart Mountain Canal access road, ca 7.5 air mi NNE of Cody and ca 17.5 air mi ESE of Powell.-109.00744.629615731588Drainage channel. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1097Luanne Lum2001731212U.S.A.WyomingParkBighorn Basin: along County Road 1AB and Lake Creek, ca 26 air mi NNW of Cody and ca 26 air mi WNW of Powell.-109.249444.877713411353Pinus and sagebrush on sandy soil with cobbles. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1115Luanne Lum200181213U.S.A.WyomingParkBighorn Basin: along County Road 1AB at Clarks Fork Canyon, ca 25 air mi NNW of Cody.-109.310744.846813991731Riparian with Juniperus. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James809Luanne Lum2001716197U.S.A.WyomingParkBighorn Basin: along South Fork Shoshone River near Buffalo Bill Reservoir, ca 11 air mi WSW of Cody.-109.247144.43651646Riparian. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James926Luanne Lum2001723204U.S.A.WyomingParkBighorn Basin: along Wood River or County Road 4DT crossing Wood River, ca 9.8 air mi SSW of Meeteetse.-108.981144.04281957Riparian with Salix. Phenology: vegetative only.RMRM937081 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57456B. E. Nelson2002714195U.S.A.WyomingWashakieBighorn Basin: ridge leading NW off Lightning Ridge on the Nowater Trail or BLM Road 1404, ca 10 air mi SW of Big Trails; ca 36 air mi SE of Worland.-107.460443.664716641676Slopes below sandstone rimrock in small canyon with chokecherry/skunkbush thickets and narrowleaf cottonwood. Phenology: vegetative only.RMRM937080 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57540B. E. Nelson2002716197U.S.A.WyomingParkBighorn Basin: in the vicinity of the confluince of Parker Spring Gulch and Fifteenmile Creek, ca 4 air mi N of Whistle Berry Hill, ca 11.5 air mi ENE of Meeteetse.-108.641844.190515241530Silt/sand or cobble bars and banks along stream channels. Phenology: vegetative only.RMRM937079 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57548B. E. Nelson2002716197U.S.A.WyomingParkBighorn Basin: in the vicinity of the confluince of Parker Spring Gulch and Fifteenmile Creek, ca 4 air mi N of Whistle Berry Hill, ca 11.5 air mi ENE of Meeteetse.-108.641844.190515241530Silt/sand or cobble bars and banks along stream channels. Phenology: vegetative only.RMRM937075 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57568B. E. Nelson2002716197U.S.A.WyomingParkBighorn Basin: along Fifteenmile Creek at Fifteenmile Creek or BLM Road 1429 crossing, ca 3 air mi W of Dead Indian Hill, ca 14 air mi E of Meeteetse.-108.601544.19051487Silt/sand or cobble bars, banks of stream channel, and sandy flats with mixed species cottonwood woodland. Phenology: vegetative only.RMRM937069 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57594B. E. Nelson2002716197U.S.A.WyomingBig HornBighorn Basin: Road Reservoir and Charco along Fifteenmile Creek or BLM Road 1429, ca 0.5 air mi NW of Dead Indian Hill, ca 28 air mi WSW of Basin.-108.54144.20491460On the dam and edge of charco. Phenology: vegetative only.RMRM937016 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57703B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: at White Reservoir along White Gulch, ca 0.5 air mi W of Dorsey Creek and ca 1.5 mi S of the Greybull River, ca 4.5 air mi ESE of Otto; ca 7 air mi W of Basin.-108.177844.39311228On reservoir dam. Phenology: vegetative only.RMRM803113 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James57731B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: along County Lane 43 and along the Greybull River, ca 2 air mi SE of Otto; ca 10 air mi W of Basin.-108.238444.378612431250Woodland and thickets along the river. Phenology: vegetative only.RMRM937109 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2786Luanne Lum Al Flinck2002618169U.S.A.WyomingParkBighorn Basin: along Greybull River and Wyo Road 290, ca 4 air mi WSW of Meeteetse.-108.92144.11671820Riparian. Phenology: vegetative only.RMRM937108 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2930Luanne Lum2002620171U.S.A.WyomingBig Horn[location and coordinates withheld]12501253Irrigation ditch. Phenology: vegetative only.RMRM937100 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3153Luanne Lum2002624175U.S.A.WyomingWashakieBig Horn Mountains: along Wyo Hwy 435, ca 10 air mi ENE of Ten Sleep.-107.279544.098418171865Juniper, pine, and sagebrush on sandy soil with cobbles. Phenology: vegetative only.RMRM937099 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3156Luanne Lum2002624175U.S.A.WyomingWashakieBig Horn Mountains: along Wyo Hwy 435, ca 10 air mi ENE of Ten Sleep.-107.279544.098418171865Juniper, pine, and sagebrush on sandy soil with cobbles. Phenology: vegetative only.RMRM937098 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3267Luanne Lum2002627178U.S.A.WyomingPark[location and coordinates withheld]20002015Disturbed riparian. Phenology: vegetative only.RMRM937097 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3316Luanne Lum2002627178U.S.A.WyomingParkBighorn Basin: along BLM Road 1314 and Pickett Creek, ca 18.5 air mi WSW of Meeteetse.-109.221744.131521702179Riparian. Phenology: vegetative only.RMRM937096 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3353Luanne Lum2002628179U.S.A.WyomingParkBighorn Basin: along U.S. Hwy 14, 16, and 20, County Road 65Y and North Fork Shoshone River, ca 1 air mi ENE of Wapiti and ca 18.5 air mi WSW of Cody.-109.408444.479916951719Sagebrush and juniper with pine. Phenology: vegetative only.RMRM937095 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4367Luanne Lum Michelle Wilson2002717198U.S.A.WyomingParkBighorn Basin: along BLM Road 1314 and Pickett Creek, ca 19 air mi WSW of Meeteetse.-109.221744.131522312246Disturbed sagebrush. Phenology: vegetative only.RMRM803112 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4442Luanne Lum Michelle Wilson2002717198U.S.A.WyomingParkBighorn Basin: along BLM Road 1314 and Pickett Creek, ca 19 air mi W of Meeteetse.-109.241744.146323142320Riparian. Phenology: vegetative only.RMRM937094 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4491Luanne Lum Michelle Wilson2002717198U.S.A.WyomingParkBighorn Basin: along BLM Road 1314 and Greybull River, ca 14 air mi WSW of Meeteetse.-109.141544.10220062041Riparian. Phenology: vegetative only.RMRM937093 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4545Luanne Lum Michelle Wilson2002720201U.S.A.WyomingParkBighorn Basin: along the Greybull River at Four Bear oil field, ca 18.5 air mi WSW of Meeteetse.-109.241744.116721342195Riparian. Phenology: vegetative only.RMRM937092 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4552Luanne Lum Michelle Wilson2002720201U.S.A.WyomingParkBighorn Basin: along the Greybull River at Four Bear oil field, ca 18.5 air mi WSW of Meeteetse.-109.241744.116721342195Juniper and sagebrush. Phenology: vegetative only.RMRM937078 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4624Luanne Lum Michelle Wilson2002720201U.S.A.WyomingParkBighorn Basin: along Francs Creek, ca 17 air mi WSW of Meeteetse.-109.201644.087221442147Sagebrush. Phenology: vegetative only.RMRM937091 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4625Luanne Lum Michelle Wilson2002720201U.S.A.WyomingParkBighorn Basin: along Francs Creek, ca 17 air mi WSW of Meeteetse.-109.201644.087221442147Sagebrush. Phenology: vegetative only.RMRM937090 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4689Luanne Lum Michelle Wilson2002722203U.S.A.WyomingBig HornBighorn Basin: along Shoshone River and Wyo Hwy 37, ca 0.5 air mi ENE of Lovell.-108.460444.86121147Riparian. Phenology: vegetative only.RMRM937089 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4753Luanne Lum Michelle Wilson2002722203U.S.A.WyomingBig HornBighorn Basin: along Shoshone River, ca 1.5 air mi E of Byron.-108.480644.80331201Riparian. Phenology: vegetative only.RMRM937088 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4876Luanne Lum Michelle Wilson2002723204U.S.A.WyomingParkBighorn Basin: along Shoshone River W of Willwood Dam and County Road-108.905844.67313441371Riparian. Phenology: vegetative only.RMRM937076 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4994Luanne Lum2002729210U.S.A.WyomingParkBighorn Basin: along County Road 6WX and South Fork Shoshone River at Rock Creek, ca 22.5 air mi SW of Cody.-109.408444.320717911810Riparian and sagebrush. Phenology: vegetative only.RMRM937087 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5029Luanne Lum2002729210U.S.A.WyomingParkBighorn Basin: along County Road 6QS at South Fork Shoshone River and Sheep Creek, ca 13.5 air mi SW of Cody.-109.267244.407616701673Riparian. Phenology: vegetative only.RMRM937086 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5419Luanne Lum200285217U.S.A.WyomingBig HornBighorn Basin: at Five Springs Creek, ca 16 air mi ESE of Lovell.-108.09644.788913031304Riparian. Phenology: vegetative only.RMRM937085 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5450Luanne Lum200287219U.S.A.WyomingParkBighorn Basin: on Cottonwood Creek at Wyo Hwy 120, ca 7.5 air mi NW of Cody.-109.128544.615116151634Riparian on sandy soil. Phenology: vegetative only.RMRM937084 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5558Luanne Lum2002810222U.S.A.WyomingParkBighorn Basin: along County Road 4DT and Wood River N of Brown Creek, ca 18.5 air mi SW of Meeteetse.-109.101443.939421642207Mixed coniferous forest. Phenology: vegetative only.RMRM937083 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5652Luanne Lum2002811223U.S.A.WyomingParkAbsaroka Mountains: at Dead Indian Creek SW of Wyo Hwy 296 and Forest Road 101, ca 23.5 air mi NW of Cody.-109.432144.745418491899Riparian. Phenology: vegetative only.RMRM937082 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5747Luanne Lum2002814226U.S.A.WyomingHot SpringsBighorn Basin: at Murphy Draw along Wyo Hwy 431 and BLM Road 1302, ca 27.5 air mi W of Worland and ca 21.5 air mi ESE of Meeteetse.-108.544.013315541556Sagebrush on mudstone. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1991bMargarette J. Lyon199379190U.S.A.ColoradoMontroseSan Miguel and lower Dolores River Drainages: San Miguel River Drainage: Uncompahgre Plateau: in canyon on Horsefly Creek.-108.066338.21162500Riparian, with willow, alder and spruce. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James822Margarette J. Lyon1993510130U.S.A.ColoradoMontroseSan Miguel and lower Dolores River Drainages: Uncompahgre Plateau: Atkinson Creek.-108.749838.40171554Riparian area along creek with Populus angustifolia and sandy benches with Artemisia tridentata. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James36932Ronald L. Hartman Margarette J. Lyon1993424114U.S.A.ColoradoMontroseSan Miguel and lower Dolores River Drainages: San Miguel River Drainage: flood plains and campsite on north side of Tabeguache Creek, ca 2 air mi ESE of Uravan.-108.712838.35791554Flood plains with Populus spp., Rhus trilobata, Quercus gambelii, Juniperus osteosperma, and Forestiera with sandstone outcrops. Phenology: flowering & fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2800Margarette J. Lyon199459129U.S.A.ColoradoMontroseSan Miguel and Lower Dolores River Drainages: roadside.-108.879138.4311554Riparian area with Populus angustifolia, Populus acuminata, and Populus deltoides. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2896Margarette J. Lyon1994511131U.S.A.ColoradoMesaSan Miguel and Lower Dolores River Drainages: John Brown Canyon near John Brown Creek.-109.006938.62671707With Populus and serviceberry. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3962Margarette J. Lyon199463154U.S.A.ColoradoMesaSan Miguel and Lower Dolores River Drainages: Uncompahgre Plateau: Indian Creek.-108.803738.62672073Riparian area with Populus angustifolia, Cornus sericea, and Acer negundo. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4257Margarette J. Lyon1994612163U.S.A.ColoradoSan Miguel[location and coordinates withheld]2195Steep, west-facing slopes with Douglas fir, chokecherry, Rosa, Fendlera, and Rocky Mountain juniper. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6332Margarette J. Lyon1994722203U.S.A.ColoradoSan Miguel[location and coordinates withheld]2256Riparian area with Salix exigua. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7264Margarette J. Lyon1994812224U.S.A.ColoradoMesaSan Miguel and Lower Dolores River Drainages: Unaweep Canyon along West Creek.-108.893838.71851615Riparian area with Populus and Salix exigua. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7484Margarette J. Lyon1994818230U.S.A.ColoradoMesaSan Miguel and Lower Dolores River Drainages: Unaweep Canyon: north side of West Creek below bridge.-108.893838.77691768Seep on south-facing slope with dense sedges; surrounding riparian area with Populus and Quercus; red, sandy soil. Phenology: vegetative only.RMUSFS850169 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1965Rob Massatti200578189U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: Middle Fork Popo Agie River trail to lower Hudson Meadow, ca 8 air mi SW of Lander.-108.857742.730321762405Aspen grove adjacent to stream. Phenology: vegetative only.RMUSFS850172 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2528Rob Massatti2005719200U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: Whiskey Mountain and vicinity, ca 7 air mi S of Dubois.-109.596943.463323782634River drainage stream banks through coniferous forest. Phenology: vegetative only.RMUSFS850171 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3034Rob Massatti2005725206U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: Weed Draw to Canyon Creek, ca 12 air mi S of Lander.-108.748842.672923352521Rocky slope above drainage. Phenology: vegetative only.RMUSFS850174 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James547Rob Massatti2005617168U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: ca 3 mi SSE of Torrey Lake, ca 9 air mi S of Dubois.-109.570243.423923232332Riparian drainage area with patchy conifer and deciduous cover. Phenology: vegetative only.RMUSFS850173 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James668Rob Massatti2005618169U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: ca 1.5 mi WNW of Torrey Lake, ca 5 air mi SSE of Dubois.-109.581543.475522592347Rocky drainage with Picea engelmannii/Pinus flexilis/Populus angustifolia cover. Phenology: vegetative only.RMUSFS850184 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4636Rob Massatti2006525145U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: ca 3 mi SW of Weiser Knoll; ca 15 air mi SSE of Lander.-108.625942.601520672173Rocky meadow on limestone. Phenology: vegetative only.RMUSFS850183 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5129Rob Massatti200664155U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: 1 mi NW of Weiser Knoll, ca 12 air mi SSE of Lander.-108.641642.703417251914Dry drainage dominated by graminoids and shrubs. Phenology: vegetative only.RMUSFS850182 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5509Rob Massatti200668159U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: 1 mi W of Ed Young Mountain; ca 14 air mi S of Lander.-108.768842.631222102446Riparian margins of drainage. Phenology: vegetative only.RMUSFS850181 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5695Rob Massatti2006621172U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: Sawmill Creek near Middle Popo Agie River, ca 5 air mi SW of Lander.-108.794142.755418591908Dry creek drainage dominated by Populus, Cornus, Salix, and Alnus. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24Amy J. Roderick Stuart Markow199665157U.S.A.WyomingCarbonMedicine Bow Mountains: Elk Mountain: saddle S of Elk Mountain, Pass Creek Canyon, ca 100-200 yds N of Pass Creek, ca 20 air mi S of Hanna.-106.564541.57752286Willow flat 25-50 yds N of the creek, dominated by Salix boothii, Populus angustifolia, and forbs and grasses. Phenology: vegetative only.RMUSFS850180 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8620Rob Massatti Eric Everts200688220U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: Upper Phillips Lake drainage to Shangrila Meadows, ca 6 air mi E of Downs Mountain.-109.571143.32526823121Forested stream margin. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James43398B. E. Nelson Melanie Arnett1998616167U.S.A.ColoradoHinsdaleSouthern Gunnison Basin: San Juan Mountains: W of Colo Hwy 149, ca 3 air mi N of Lake City; ca 4.2 air mi NE of Crystal Peak.-107.29338.078825972896Road cut. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James43527B. E. Nelson1998618169U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: along County Road UU13 W of Lost Ocho Mine, ca 3/4 air mi E of Cochetopa Canyon, ca 15.5 air mi SE of Gunnison; ca 9.5 air mi S of Parlin.-106.754438.360925602682Sagebrush-rabbitbrush flats. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James43817B. E. Nelson1998621172U.S.A.ColoradoMontroseUncompahgre Basin: just S of Cerro Summit on County Road P77, ca 4.8 air mi W of Cimarron; ca 13 air mi ESE of Montrose.-107.641438.445624262451Roadside, roadcut, fencerow below irrigation ditch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1330Melanie Arnett199876187U.S.A.ColoradoGunnisonSouthern Gunnison Basin: ca 3.3 air mi E of Blaine Rock, ca 8.5 air mi SW of Gunnison on northerly adjacent ravines of Big Mesa.-107.023238.442724932652Sage-dominated north-draining ravines and slopes. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1677Melanie Arnett1998714195U.S.A.ColoradoHinsdaleSouthern Gunnison Basin: San Juan Mountains: at the confluence of Nellie and Henson creeks, ca 4.7 air mi W of Lake City at the intersection of County roads 20 and 23.-107.403938.020728382865Spruce forest and riparian. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James193Melanie Arnett199869160U.S.A.ColoradoMontroseUncompahgre Basin: Beaton Creek and S to top of ridge, ca 3 air mi SW of Waterdog Peak; ca 4.4 air mi E of Uncompahgre River.-107.715338.357921822243West-facing sagebrush slope and riparian. Phenology: flowering & fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2731Melanie Arnett199887219U.S.A.ColoradoGunnisonSouthern Gunnison Basin: ca 1.5 air mi N of Maple Leaf Mine; ca 5 road mi S of U.S. Hwy 50; ca 10 air mi SE of Gunnison along Colo Hwy 114.-106.756938.46312378Roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3500Melanie Arnett1998819231U.S.A.ColoradoGunnisonSouthern Gunnison Basin: ca 1.5 air mi due E of Fitzpatrick Reservoir; ca 4.1-4.6 road mi from U.S. Hwy 50; ca 23 air mi ESE of Montrose along County Road 864.-107.475238.357923532439Roadside. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James374Melanie Arnett B. E. Nelson1998616167U.S.A.ColoradoHinsdaleSouthern Gunnison Basin: San Juan Mountains: along County Road 20 and Henson Creek, ca 0.6 road mi from intersection of Bluff Street in Lake City; ca 3.1 air mi SE of Crystal Peak; 3 air mi N of Red Mountain.-107.329938.02072658Streambank; brushy canyon bottom with Salix and cottonwoods. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James393Melanie Arnett B. E. Nelson1998616167U.S.A.ColoradoHinsdaleSouthern Gunnison Basin: San Juan Mountains: ca 7 air mi N of Lake City along Devils Creek and Lake Fork Gunnison River; ca 7 air mi NE of Crystal Peak.-107.290438.135925602597Along Lake Fork of the Gunnison River and adjacent terrace. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James527Melanie Arnett1998618169U.S.A.ColoradoGunnisonSouthern Gunnison Basin: San Juan Mountains: ca 21.5 air mi NNE of Lake City along Milkranch Gulch and adjacent west- and north-facing slopes; ca 1/4 road mi E of intersection of County Road 27 and Colo Hwy 149; on S side of road.-107.102638.296425002585Heavily vegetated roadside gulch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James651Melanie Arnett1998618169U.S.A.ColoradoSaguacheSouthern Gunnison Basin: ca 11.7 air mi SSE of Doyleville in a side canyon of Cochetopa Canyon; ca 7.6 air mi NNW of Cochetopa Dome; from County Road 14-PP to Cochetopa Creek.-106.754438.331625912743Aspen/spruce/fir wooded canyon. Phenology: vegetative only.RMRM750751 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4349Melanie Arnett1999618169U.S.A.ColoradoGunnisonSouthern Gunnison Basin: ca 1.3 air mi NE of Tolvar Peak; ca 6 air mi NW of Soderquist Reservoir; ca 13.8 air mi NNE of Powderhorn Lakes.-107.121438.324524082829Lower rocky canyon slopes and riparian. Phenology: vegetative only.RMRM750729 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4564Melanie Arnett1999622173U.S.A.ColoradoGunnisonSouthern Gunnison Basin: Curecanti National Recreation Area: Cebolla Creek where it meets with Blue Mesa Reservoir, ca 1.8 air mi E of Carpenter Ridge; ca 4.6 air mi W of Blaine Rock.-107.177738.426622862439Ravine bottom. Phenology: vegetative only.RMRM750728 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4690Melanie Arnett1999626177U.S.A.ColoradoGunnisonSouthern Gunnison Basin: east side of County Road 32B, ca 3.5 air mi N of Saguache County; ca 5 air mi SSW of Gunnison.-106.956938.478224692542Rolling sagebrush shrubland. Phenology: vegetative only.RMRM750727 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6998Melanie Arnett1999813225U.S.A.ColoradoGunnisonSouthern Gunnison Basin: San Juan Mountains: ca 0.5-1 air mi E of Colo Hwy 149, ca 0.3 air mi SE of confluence of Trout Creek and Lake Fork Gunnison River; ca 5.1 air mi SSW of Gateview.-107.252838.222324752524Sparse ponderosa-juniper hills. Phenology: vegetative only.RMRM750748 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7534Melanie Arnett1999824236U.S.A.ColoradoGunnisonSouthern Gunnison Basin: County Road 31, ca 1.8 air mi NE of Blaine Rock; ca 3.3 air mi SSW of Hierro.-107.046238.44122317Roadside. Phenology: vegetative only.RMRM659331 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51387Ronald L. Hartman1995626177U.S.A.WyomingTetonMount Leidy Highland Area: Gros Ventre River Road, ca 2 air mi E of Forest boundary; just W to overlooking Slide Lake, on the N side.-110.417143.63421032134Roadside and outcrops. Phenology: fruiting.RMRM659333 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51525Ronald L. Hartman1995628179U.S.A.WyomingTetonMount Leidy Highland Area: Dry Cottonwood Creek, 1-2 air mi upstream; 2-3 air mi E of east end of Upper Slide Lake.-110.257743.590822562317Stream bottom and benches. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4310Lynn Marie Moore1995521141U.S.A.ColoradoMontroseUpper Dolores River Drainage and Adjacent Areas: Paradox Valley Area, Calf Springs, County Road DD15 and County Road FF13, ca 16 air mi W of Nucla.-108.823738.22631932Pinyon-juniper, Salix, Tamarisk, recently grazed on southwest facing slope. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5356Lynn Marie Moore Fallon Judkins and Carlann Defontes199569160U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: House Creek Area, Forest Road 528, ca 6.5 air mi N of Dolores.-108.49537.53762134Pinyon pine, ponderosa, Juniperus scopulorum, Cercocarpus, and Quercus on a northwest facing slope. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5578Lynn Marie Moore1995617168U.S.A.ColoradoMontroseUpper Dolores River Drainage and Adjacent Areas: ca 24 air mi WNW of Naturita N of Hwy 90, ca 0.75 road mi E of Utah State Line.-109.045438.328618291890Drainage area with dense pinyon-juniper, boxelder, and ponderosa on a south facing slope; old mining area at upper end of canyon. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6272Lynn Marie Moore1995629180U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Forest Road 504, ca 19 air mi N of Cortez at the Ferris Canyon Campground Area on north side of the Dolores River.-108.62237.610820422103Riparian area with ponderosa, oak, Cornus, Amelanchier, Artemesia, and rabbitbrush on southwest-facing slopes. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6465Lynn Marie Moore199578189U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Forest Trail 607, S of Colo. HWY 145, ca 16 air mi NE of Dolores on Morrison Trail, Bear Creek Drainage.-108.204737.566924392926Spruce, aspen, douglas fir, boxelder, and snowberry in a north facing canyon and drainage. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6645Lynn Marie Moore1995710191U.S.A.ColoradoDoloresUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest, ca 17 air mi NE of Dolores in the Mavreeso Canyon Area, Forest Road 209.-108.313537.698624692743Aspen, oak, snowberry, spruce, along creek and up the southeast side of a canyon on northwest facing slope. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7296Lynn Marie Moore Sierra Smith1995716197U.S.A.ColoradoDoloresUpper Dolores River Drainage and Adjacent Areas: Lone Cone State Wildlife Area: E of County Road 31.00, ca 25 air mi N of Dolores.-108.324337.84292439Wetland area with Salix and Ranunculus surrounded by aspen and blue spruce, south-facing. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8042Lynn Marie Moore Sierra Smith1995730211U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Forest Road 527E, ca 3 air mi NE of Dolores at the Boggy Draw Area, Morgan Cabin Reservoir.-108.440537.508423412347Ponderosa pine forest, aspen grove and rimrock pavement surrounding wetland and reservoir; west face. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James64799B. E. Nelson Rob Massatti and Rachel Newton200568159U.S.A.WyomingFremontWetlands and Adjacent Areas: northwest corner of Ocean Lake, ca 4.5 air mi SE of Pavillion off Wyo Hwy 134; ca 17.5 air mi NW of Riverton.-108.620243.210915941609Disturbed area and wind break plantings. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James64968B. E. Nelson Rob Massatti and Rachel Newton200568159U.S.A.WyomingFremontWetlands and Adjacent Areas: Fivemile Creek Bay of Boysen Reservoir and along Fivemile Creek, ca 4.5 air mi W of Shoshoni; ca 17.5 air mi NE of Riverton.-108.192243.238814391451Along the edge of the reservoir. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James65165B. E. Nelson2005613164U.S.A.WyomingFremontWetlands and Adjacent Areas: along northeast side of Pilot Butte Reservoir, ca 1 air mi NE of Morton; ca 23.5 air mi NW of Riverton.-108.762743.207916581676Shore of the reservoir. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3937Rachel Newton200661152U.S.A.WyomingJohnsonWetlands and Adjacent Areas: Muddy Guard Reservoir #2, ca 9 air mi SSW of Buffalo.-106.7551544.181931598Sandy beach. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4271Rachel Newton200665156U.S.A.WyomingJohnsonWetlands and Adjacent Areas: Rock Creek, ca 10 air mi NW of Buffalo.-106.8480744.444121550Dry, shaded flood plains. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5402Rachel Newton2006626177U.S.A.WyomingJohnsonWetlands and Adjacent Areas: North Fork Crazy Woman Creek, ca 15 air mi SW of Buffalo.-106.8897444.174382149Dry, rocky uplands. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5542Rachel Newton2006629180U.S.A.WyomingSheridanWetlands and Adjacent Areas: Tongue River, ca 8 air mi SW of Ranchester.-107.3015144.851231198Shaded, moist river bank. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5710Rachel Newton2006630181U.S.A.WyomingParkWetlands and Adjacent Areas: South Fork Shoshone River, ca 12 air mi SW of Cody.-109.2682444.408421674Rocky banks and uplands. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2678Amy J. Roderick1997722203U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Seminoe Mountains: Cottonwood Creek, ca 2 air mi W of Seminoe Dam; ca 27 air mi NE of Sinclair.-107.04642.15182042Aspen and cottonwood lined creek in mountain meadow. Phenology: vegetative only.RMRM771655 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James274Sarah Nunn Ronald L. Hartman2001526146U.S.A.ColoradoLarimerRoosevelt National Forest: Front Range: by Sevenmile Creek at the junction of County Road 69 and Forest Road 225, N of Rustic, ca 26 air mi W of Fort Collins.-105.600440.719622862560Granite hillside with some quartz, south and east facing slopes with occasional ponderosa pine, Rocky Mountain juniper, Ribes, and Purshia, scrubby and dry. Phenology: vegetative only.RMRM771652 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4873Sarah Nunn2001821233U.S.A.ColoradoLarimerRoosevelt National Forest and Vicinity: Front Range: north side of Cache la Poudre River, off Colo Hwy 14 just W of the State Fish Hatchery, ca 30 air mi W of Fort Collins.-105.71640.70192469Riverside forest with Populus, Betula, aspen groves, and Colorado blue spruce. Phenology: vegetative only.RMRM771653 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James582Sarah Nunn2001530150U.S.A.ColoradoLarimerRoosevelt National Forest: Front Range: across Colo Hwy 14 from Dutch George Campground, ca 17 air mi NW of Fort Collins.-105.44840.70512195Damp ravine descending off low sandstone summit in foothills. Phenology: fruiting.RMRM281032 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10222C. L. Porter Marjorie W. Porter1966715196U.S.A.WyomingCarbonWestern slope Sierra Madre: in the lower end of Battle Creek Canyon.-107.217241.06952134Along the stream. Trees to 20 m tall along the stream. Phenology: vegetative only.RMRM194888 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3041C. L. Porter1942427117U.S.A.WyomingAlbanyLaramie.-105.585741.31312195SE edge of Laramie. Catkins of same tree as 3040. Phenology: flowering.RMRM203930 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4045C. L. Porter1946721202U.S.A.WyomingFremontAlong the Big Wind River, ca 13 mi SE of Dubois.-109.443543.42892134Trees to 50 ft high. Possibly a hybrid with P. balsamifera. Phenology: vegetative only.RMRM217897 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5481C. L. Porter1950713194U.S.A.WyomingParkAlong Clark's Fork Yellowstone River, on the Red Lodge-Cooke City highway, near Index Peak.-109.849244.98592195*northwestern Park county* Phenology: vegetative only.RMRM222836 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5692C. L. Porter R. C. Rollins1951628179U.S.A.WyomingSweetwaterHenry's Fork near McKinnon.-109.949241.0522134Large trees forming groves. *southern Sweetwater county* Phenology: vegetative only.RMRM247874 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6800C. L. Porter195583215U.S.A.WyomingFremontAlong the Wind River below the diversion dam NW of Riverton.-108.956143.22391768Forming open groves. Trees to 60 ft high and 2 ft diameter. Phenology: vegetative only.RMRM247861 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6862C. L. Porter1955830242U.S.A.WyomingAlbanyLaramie Mountains: along the North Fork of Sybille Creek.-105.341141.77831676In an open canyon. Trees to 40 ft high. Phenology: vegetative only.RMRM255932 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7630C. L. Porter Marjorie W. Porter1958812224U.S.A.WyomingLincolnAlong the Green River 10 mi S of La Barge.-110.184642.12231951In river bottoms. Possibly a hybrid with P. balsamifera. Phenology: vegetative only.RMRM263252 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8094C. L. Porter Marjorie W. Porter196062154U.S.A.WyomingAlbanyAlong North Platte River, 12 mi N of Sinclair.-107.052841.8861951Trees to 50 ft tall, bark deeply furrowed, light tan. Phenology: vegetative only.RMRM263287 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8095C. L. Porter Marjorie W. Porter196062154U.S.A.WyomingAlbanyAlong North Platte River, 12 mi N of Sinclair.-107.052841.8861951Trees to 50 ft high, bark deeply furrowed, light tan. Phenology: vegetative only.RMRM263083 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8245C. L. Porter Marjorie W. Porter1960628180U.S.A.WyomingWashakieBig Horn Range: lower end of Tensleep Canyon.-107.339544.07321524Trees to 40 ft high. Phenology: vegetative only.RMRM262974 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8248C. L. Porter Marjorie W. Porter1960628180U.S.A.WyomingWashakieBig Horn Range: lower end of Tensleep Canyon.-107.339544.07321524Trees to 40 ft high, upper bark smooth, lower bark dark and furrowed. Phenology: vegetative only.RMRM263212 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8424C. L. Porter Marjorie W. Porter1960722204U.S.A.WyomingFremontSouthern Wind River Range: east slope, at Louis Lake.-108.852442.59652682On lake shore. Small trees. Phenology: vegetative only.RMRM264795 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8572C. L. Porter Marjorie W. Porter196168159U.S.A.WyomingNatronaEast side of Alcova Reservoir on the North Platte River.-106.715542.53611951Sandy hills, with Artemisia and Sarcobatus; along a dry stream. Trees to 50 ft high, along dry stream. Phenology: fruiting.RMRM264794 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8583C. L. Porter Marjorie W. Porter1961612163U.S.A.WyomingFremontSouthern Flank of the Owl Creek Range: E of Boysen Dam, on the Birds Eye Pass Road.-108.098643.37011524Trees to 40 ft high, with trunks 2 ft in diameter, the bark tan and deeply fissured. Phenology: vegetative only.RMRM268041 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9024C. L. Porter Marjorie W. Porter1962613164U.S.A.WyomingAlbanyAlong the Big Laramie River near Woods Landing.-106.014741.10712378Trees to 60 ft high. Phenology: fruiting.RMRM815124 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1134Brian Reif2003623174U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Cochiti Canyon, 4.3 air mi SSE of Rabbit Mountain. From crossing of Trail 113 SE 1.3 mi in canyon.-106.43656735.779421952524Canyon bottom and riparian. Phenology: vegetative only.RMRM815123 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2101Brian Reif2002711192U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Canyon de la Alameda to Rio Gallina, 14 air mi NNE of Gallina. SW for 1 air mi in canyon to Rio Gallina then 0.4 air mi E along river.-106.75628336.4016520422103Pinyon/juniper woodland of river. Phenology: vegetative only.RMRM815122 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2598Brian Reif2002718199U.S.A.New MexicoRio ArribaSanta Fe National Forest and vicinity: Jemez Mountains: Arroyo de los Frijoles, 2.5 air mi W of Abiquiu. From corral at start of Barranca Trail 111 3.4 air mi S to Frijoles Spring.-106.36116736.1997518332134Riparian with cottonwoods through canyon of soft sedimentary rock in pinyon/juniper woodland. Phenology: vegetative only.RMRM815136 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James317Brian Reif200267158U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 27 at headwaters of Polvadera Creek, 7.5 air mi SW of Abiquiu, along creek for 1.1 mi.-106.4222536.1529521462323Riparian. Phenology: vegetative only.RMRM815135 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James360Brian Reif200269160U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 316 at spring, 2.4 air mi S of NM Hwy 96/Forest Road 316 junction, S on Coyote Creek for ca 0.4 mi.-106.61743336.13158321402175Riparian through pinyon/juniper woodland with ponderosa pine/Douglas fir. Phenology: vegetative only.RMRM815121 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4343Brian Reif2002820232U.S.A.New MexicoSan MiquelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Indian Creek off of NM Hwy 63, 9 air mi N of Pecos. SE on road along creek ca 0.8 air mi.-105.69756735.71678323532426Meadow and drainage in canyon bottom. Phenology: vegetative only.RMRM815120 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4377Brian Reif2002823235U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Santa Fe Municipal Watershed, 7 air mi ENE of Santa Fe, east side at end of road NE of McClure Reservoir, S 0.4 air mi along Santa Fe River.-105.8058535.70783325002536Forested meadow. Phenology: vegetative only.RMRM815119 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4489Brian Reif2002823235U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Santa Fe Municipal Watershed, 3 air mi ENE of Santa Fe, in vicinity of Randall Davey Audubon Center. E on road to 0.2 air mi.-105.88833335.69038322502262Roadside through pinyon-juniper woodland along contour, and just S of the river. Wet roadside culverts. Phenology: vegetative only.RMRM815134 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James536Brian Reif2002611162U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Battleship Rock Forest Recreation Site, 2.8 air mi S of La Cueva, following Trail 137 on East Fork Jemez River for 0.7 mi.-106.6455535.82901720592134Riparian in steep-walled forested canyon of ponderosa pine/Douglas fir. Phenology: vegetative only.RMRM815133 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James649Brian Reif2002614165U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Ojitos Canyon-Chama River Canyon Wilderness Area, 9 air mi NNW of Coyote, N 2.5 mi into Ojito Canyon on Trail 298 from junction with Forest Road 468 to beginning of trail's ascent.-106.67196736.29878320792481Canyon bottom of Gambels oak and riparian. Phenology: vegetative only.RMRM815137 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James91Brian Reif200262153U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 126 at Horseshoe Spring, NW 0.3 air mi to rim of Eureka Mesa.-106.87838335.994924082560Steep-walled drainage of Gambels oak. Phenology: vegetative only.RMRM815108 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74730Ronald L. Hartman2002530150U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: ca 2 air mi SW of Gallina.-106.859536.204722562621Benchland, sedimentary, with ponderosa pine and Douglas fir; roadside. Phenology: vegetative only.RMRM815107 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74835Ronald L. Hartman2002530150U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: San Pedro Mountains: Resumidero Creek on east edge of San Pedro Park at junction of Forest Road 93 and Forest Road 461.-106.74566736.11508327132774Streamside and ponderosa pine. Phenology: vegetative only.RMRM815106 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James75067Ronald L. Hartman2002622173U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: 3 road mi NNE of Ponderosa.-106.64328335.6933672019Roadside, streamside. Phenology: vegetative only.RMRM815105 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James75188Ronald L. Hartman2002623174U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Guadalupe Box on NM Hwy 485, 1 air mi N of Gilman at Tunnels.-106.768435.73371890Rocky walls of Precambrian gneiss and roadside. Phenology: vegetative only.RMRM815104 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James75207Ronald L. Hartman2002623174U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 485 at junction with Forest Road 652, 2 air mi NNW of Gilman.-106.77951735.74651951Rocky slopes. Phenology: vegetative only.RMRM815103 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James75261Ronald L. Hartman2002625176U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: San Miguel Canyon complex on Forest Road 534, from junction with Forest Road 20, S 2 road mi.-106.899335.905522252317Sandstone outcrops, major gypsum beds with ponderosa pine and Douglas fir forests. Phenology: vegetative only.RMRM815102 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James75294Ronald L. Hartman2002625176U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: 3-4 air mi NW of Llaves at junction of Forest Road 312 and Forest Road 313.-106.91056736.410452196Ponderosa pine forest and riparian. Phenology: vegetative only.RMRM815118 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5141Brian Reif2003610161U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Glorieta Canyon 3 air mi N of Glorieta. N35.630 W105.779 S 1 air mi to N35.616 W105.771.-105.77935.6323292493Trailside through riparian canyon bottom in Pseudotsuga/Abies forest. Phenology: vegetative only.RMRM815117 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5192Brian Reif2003612163U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Tesuque Creek on Winsor Trail 254, 3 air mi SE of Tesuque; SW on trail 0.5 air mi.-105.88835.74522312246Narrow canyon bottom and riparian with mature ponderosa pine, horsetail, cottonwood, alder, and willow. Granitic soils. Phenology: vegetative only.RMRM815116 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5449Brian Reif2003616167U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Dome Wilderness: Capulin Canyon below Los Utes Spring, 2 air mi W of Bandelier National Monument.-106.38635.77322432298Riparian and canyon bottom through burn and with thick deadfall; surrounding mixed conifer forest with thick locust/Gambels oak stands below. Phenology: vegetative only.RMRM815115 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5801Brian Reif2003623174U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Medio Trail 155 adjacent to Rio Medio, 6 air mi due W of Truchas Peak; NW along trail 0.2 air mi.-105.75235.9632564Riparian corridor through spruce of lower canyon slopes; banks of river or standing water. Phenology: vegetative only.RMRM815114 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5924Brian Reif2003623174U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: County Road 503 N into La Caja Canyon on Debris Basin Trail and along Rio Medio to southern end of Santa Cruz Reservoir, 1 air mi W of Cundiyo.-105.91335.9691993Along the river through tight canyon with granite cliffs with cottonwood and coyote willow in bottom. Phenology: vegetative only.RMRM815113 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8373Brian Reif2003813225U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Valdez Trail 224 at Mora Flats, 6.5 air mi NE of Cowles, at junction with Trail 250.-105.577835.872841On rock bluff at Trail 250 crossing of river; a shaded riparian corridor with alder, willow, and mountain spray; spruce and aspen above. Phenology: vegetative only.RMRM815112 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8670Brian Reif2003817229U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Mora near Valle Largo Trail 248 crossing, 2 3/4 air mi ENE of Cowles.-105.618335.82782682Narrow, moist canyon bottom with granite bluffs and riparian in surrounding mixed conifer forest. Phenology: vegetative only.RMRM815111 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8764Brian Reif2003818230U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 60 along Sapello River, 2 air mi SW of Rociada; N35.8129 W105.4480 at corral NW 0.3 air mi to Surprise Valley Ranch at N35.8168 W105.4518.-105.451835.81682439Roadside in canyon bottom and south-facing slope of mixed conifers/mature aspen; mostly ponderosa pine in exposed areas. Phenology: vegetative only.RMRM815110 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9090Brian Reif2003827239U.S.A.New MexicoMoraSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Capulin Canyon, 4 air mi WSW of Ledoux. N35.9006 W105.4152 S 0.5 air mi to mouth of Ute Canyon at N35.8933 W105.4178.-105.415235.900624542500Grazed meadow of canyon bottom in surrounding ponderosa pine forest. Phenology: vegetative only.RMRM815109 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9283Brian Reif2003829241U.S.A.New MexicoMora[location and coordinates withheld]2347Roadside in meadow bottom including lower, south-facing slope of Gambels oak/ pinyon pine, and riparian at creek crossing; ponderosa pine forest. Phenology: vegetative only.RMRM804664 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James61720B. E. Nelson2004712194U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Glorieta Mesa: Lopez Tank on Canyon del Aqua del Corral and vicinity on Forest Road 324, ca 10 air mi S of South San Ysidro; ca 19 air mi SSE of Pecos.-105.551835.320521952207Rocky channel below the dam. Phenology: vegetative only.RMRM815101 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James78954Ronald L. Hartman200468160U.S.A.New MexicoLos Alamos[location and coordinates withheld]1707Stream bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1725Robin Jones1991623174U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: North Fork Owl Creek, ca 7 air mi NW of Anchor Reservoir; ca 37 mi WNW of Thermopolis.-108.944243.722782121Riparian area along creek.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2091Robin Jones Clay Lippencott1991713194U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: cliffs on east side of Wind River Canyon, ca 12 air mi SSE of Thermopolis; ca 20 air mi N of Shoshoni.14141768Wet spring areas on west-facing slope.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2410Robin Jones George Jones1991822234U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: arroyo, ca 29 air mi NW of Wagonhound Bench; ca 6 air mi NW of Hamilton Dome.-108.702543.7951707Northeast-facing slopes and terraces along arroyo.RMRM594310 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1520Walter Fertig1990611162U.S.A.WyomingTetonWest Slope Wind River Range: ca 4.5 air mi SE of Upper Slide Lake.-110.2202843.5730622862378Cottonwood grove on gravelly, sandy soil on north shore of Cottonwood Creek. Phenology: vegetative only.RMRM20435 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5750Aven Nelson Elias Nelson1899710191U.S.A.WyomingParkYellowstone National Park: Yellowstone River, near Junction Butte.-110.389544.921318902012Along the river. Phenology: fruiting.RMRM397882 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. Jamess.n.D. Long J. Von Loh19836152U.S.A.WyomingLaramieF. E. Warren Air Force Base: near Crow Creek, picnic area.-104.87441.1571859Riparian. Phenology: vegetative only.RMRM337652 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1584David L. Martin198193246U.S.A.WyomingBig HornAlong creek in Ziesman Canyon.-107.512144.1761426Dominant tree along creek; some Elaeagnus angustifolia and Rhus trilobata in area, Populus deltoides at mouth of canyon, where it was probably planted. Phenology: vegetative only.RMRM337651 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1585David L. Martin198193246U.S.A.WyomingBig HornAlong creek in Ziesman Canyon.-107.512144.1761426Dominant tree along creek; some Elaeagnus angustifolia and Rhus trilobata in area, Populus deltoides at mouth of canyon, where it was probably planted. This specimen is from a tree with particularly flat leaf petoiles, which suggests hybridization. Phenology: vegetative only.RMRM577572 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James16809Erwin F. Evert1989615166U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: along the river immediately W of Horse Creek Picnicground, just N of U.S. Hwy 14, 16, and 20.-109.583744.46181792Weedy riparian community with Bromus inermis, Alyssum desertorum and a few Populus angustifolia. Phenology: vegetative only.RMRM341297 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2834Erwin F. Evert1981622173U.S.A.WyomingParkNorth Fork Shoshone River Drainage: south side of Buffalo Bill Reservoir, ca 3 mi E of Gibbs Bridge at springs.-109.267244.47991707Phenology: fruiting.RMRM357587 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4037Erwin F. Evert1982627178U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: Rex Hale Campground; ca 31 mi W of Cody.-109.744244.46181875In wet area. Phenology: vegetative only.RMRM357219 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4827Erwin F. Evert1982827239U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: along Clearwater Creek, just N and S of U.S. Hwy 14, 16, and 20.-109.663744.46181844Phenology: vegetative only.RMRM357550 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4892Erwin F. Evert1982818230U.S.A.WyomingParkAlong county road FU6, ca 8 mi E of Wapiti.-109.226944.47991646Phenology: vegetative only.RMRM531852 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5361Erwin F. Evert198375186U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: Rimrock Ranch Road; ca 0.1-0.5 mi S of U.S. Hwy 14, 16, and 20.-109.522744.46181798Sagebrush-grassland. Phenology: fruiting.RMRM531854 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5363Erwin F. Evert198375186U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: Rimrock Ranch Road; ca 0.1-0.5 mi S of U.S. Hwy 14, 16, and 20.-109.522744.46181798Sagebrush-grassland. Phenology: fruiting.RMRM532282 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6066Erwin F. Evert1983818230U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: north side of Shoshone Canyon.-109.186544.50892012Phenology: vegetative only.RMRM609080 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6538Erwin F. Evert1984617169U.S.A.WyomingParkNorth Fork Shoshone River Drainage: Absaroka Mountains: along north side of North Fork Shoshone River, between Sweetwater and Horse creeks, ca 25 mi W of Cody.-109.62444.46181798Cottonwood-willow riparian community. Phenology: vegetative only.RMRM609425 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6899Erwin F. Evert198477189U.S.A.WyomingParkNorth Fork Shoshone River Drainage: Absaroka Mountains: along the north side of the North Fork Shoshone River, ca 1/2-2 mi W of Wapiti.-109.442844.476317071768Phenology: vegetative only.RMRM609611 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7097Erwin F. Evert1984723205U.S.A.WyomingParkNorth Fork Shoshone River Drainage: Absaroka Mountains: just N of U.S. Hwy 14, 16, and 20, ca 40 mi W of Cody in Highway Department gravel storage and dump area.-109.825444.44731951In disturbed soil. Phenology: vegetative only.RMRM624096 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8351Erwin F. Evert1985710191U.S.A.WyomingSheridanBig Horn Mountains: ca 1/4 - 1/2 mi NW of Story Fish Hatchery.-106.937844.570117071737In draw and on hillside in open Pinus ponderosa forest with some Pseudotsuga menziesii. Phenology: vegetative only.RMRM624095 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9446Erwin F. Evert1985815227U.S.A.WyomingParkNorth Fork Shoshone River Drainage: Absaroka Mountains: along north side of North Fork Shoshone River, ca 1 mi W of the mouth of Canyon Creek.-109.543544.46181798Around springs and in seepage area. Phenology: vegetative only.RMRM624097 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9545Erwin F. Evert1985819231U.S.A.WyomingParkSoutheastern Absarokas: Stratford Ranch, near upper ranch house along east side of South Fork Shoshone River, ca 40 mi SW of Cody.-109.59644.140219812012Riparian areas along spring channels. Phenology: vegetative only.RMRM268831 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James199Francis X. Jozwik1962722203U.S.A.WyomingNatronaCasper Mountain area: vicinity of Garden Creek Falls.-106.332642.77331951Near creek bank. Phenology: vegetative only.RMRM38246 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3446Frank Tweedy1900615166U.S.A.WyomingJohnsonBetween Sheridan and Buffalo.10671524Phenology: fruiting.RMRM38245 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3445Frank Tweedy1900615166U.S.A.WyomingJohnsonBetween Sheridan and Buffalo.10671524Phenology: fruiting.RMRM643841 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1096Gillian Walford199389221U.S.A.WyomingParkShoshone National Forest: North Fork Shoshone River Valley: south side of North Fork River, E of Big Game Campground, 27 1/4 air mi W of Cody.-109.603244.46181798Stream bar, tall shrub and sapling community with Salix lutea, S. lasiandra and Populus angustifolia; gravelly alluvium. Phenology: vegetative only.RMRM643840 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James829Gillian Walford S. Gottschlich and R. Bechtloff1993720201U.S.A.WyomingParkShoshone National Forest: South Fork Shoshone River Valley: west side of South Fork Shoshone River, E of one-room schoolhouse, 33.4 air mi SW of Cody.-109.56344.20081884Alluvial terrace; woodland with Populus angustifolia and Betula occidentalis. Phenology: fruiting.RMRM270698 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James848Herbert G. Fisser196264155U.S.A.WyomingNatronaBates Creek crossing of Medicine Bow Highway; ca 30 mi SW of Casper.-106.411342.6131768Phenology: fruiting.RMRM382921 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10100Hollis Marriott1986617168U.S.A.WyomingFremontLysite Badlands: ca 1.2 air mi W of Moneta-Lysite road, 3.4 air mi N of Moneta.-107.715443.21211737Near wash, associated with seepage. Phenology: vegetative only.RMRM382920 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10159Hollis Marriott1986617168U.S.A.WyomingFremontLysite Badlands: badlands draining N into Alkali Creek, ca 2.5 air mi W of Lysite.-107.74643.26381631Among brown sandstone outcrops. Shrub-like. Phenology: vegetative only.RMRM302740 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2421J. Francis Macbride191381213U.S.A.WyomingAlbanyRock River.-105.972541.73462134All along the stream. Phenology: fruiting.RMRM682219 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James523Jill Walford1993617168U.S.A.WyomingParkAbsaroka Range: North Fork Shoshone River Valley: south bank of river E of Big Game Campground, 27 1/4 air mi W of Cody.-109.603244.46181798Salix exigua streamside bar community on sandy and gravelly alluvium. FS-02-14-04-93-NC-001 Phenology: fruiting.RMRM209324 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1631John F. Reed Mildred S. Reed1947819231U.S.A.WyomingTetonJackson Hole Wildlife Park: Pacific Creek banks.-110.517643.85072057Phenology: vegetative only.RMRM211429 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2204John F. Reed Mildred S. Reed194869161U.S.A.WyomingTetonJackson Hole Wildlife Park: banks of Snake River.-110.551143.86662057Phenology: vegetative only.RMRM211432 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2578John F. Reed Mildred S. Reed194898252U.S.A.WyomingTetonTeton National Forest: Gros Ventre Slide.-110.555243.63592195Phenology: vegetative only.RMRM220001 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3048John F. Reed Mildred S. Reed1950817229U.S.A.WyomingTetonTeton National Forest: Hoback Canyon.-110.579943.28111920Streamside. Phenology: vegetative only.RMRM220002 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3066John F. Reed Mildred S. Reed1950817229U.S.A.WyomingSubletteNear Pinedale, along the New Fork River.-109.890542.87322134Along the river. Phenology: vegetative only.RMRM395526 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James143L. Strack1987731212U.S.A.WyomingAlbanyBird Creek.-106.185941.18792804Growing with Salix and Pinus near creek. Phenology: vegetative only.RMRM682087 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James257Michael Oliver199171182U.S.A.WyomingPlatteSoutheastern Plains: Spring Creek between El Rancho and Coleman roads, W of I-25 and Coleman Butte.-105.057542.28361460Salix amygdaloides community with scattered Populus angustifolia on first terrace on banks of intermittent stream; understory of Bromus intermis and Melilotus officinalis. Phenology: vegetative only.RMRM703758 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11Michele Barlow George Jones199163154U.S.A.WyomingLaramieLaramie Range: South Crow Creek, 1.2 mi S of Hecla and Crystal Lake Road.-105.167841.13642115Patchy Populus angustifolia community with understory of Ribes, Rosa, and Symphoricarpos on mixed alluvium. Phenology: fruiting.RMRM724400 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James13443Noel H. Holmgren Patricia K. Holmgren1999523143U.S.A.WyomingUinta2.5 mi E of Mountain View, just N of Wyo Hwy 414 on County Road 243. 41 16'10"N, 110 17' 51"W.2164Along a stream. Common, the bark smooth above, deeply fissured below. Phenology: fruiting.RMRM724376 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James13445Noel H. Holmgren Patricia K. Holmgren1999523143U.S.A.WyomingUinta2.5 mi E of Mountain View, just N of Wyo Hwy 414 on County Road 243. 41 16'10"N, 110 17' 51"W.2164Along stream. Common, the bark smooth above, deeply fissured below. Phenology: fruiting.RMRM726732 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James358Patricia P. Douglas N. E. Hastings, R. M. Smith1995628179U.S.A.WyomingPlatteCamp Guernsey: 0.1 km E of Warm Springs, along Emigrant Trail.1347On floodplains in level sandy silt to sandy loam with Equisetum sp., Salix, and Bromus spp. Infrequent, tree 15 m tall. Phenology: vegetative only.RMRM764974 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James556Patricia P. Douglas B. E. Nelson, N. E. Hastings, R. M. Smith1995822234U.S.A.WyomingPlatteCamp Guernsey: creek bottom along North Platte River, ca 3.5 km S of Baldy Mountain, ca 2.1 km NW of Impact Area.1353On river bank/flood plain with level to slight slope of clay loam with Populus angustifolia, P. deltoides, Aster, and Bromus spp. Very infrequent, tree 15 m tall. Phenology: vegetative only.RMRM268494 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62-5Paul H. Freytag196286218U.S.A.WyomingAlbanyCentennial.-106.137341.29712461Phenology: vegetative only.RMRM391495 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James460Robert J. Hill1973628179U.S.A.WyomingConverseNear Little Box Elder Cave.-105.723342.75871676Along creek; growing in the draws, slopes, and meadow areas near cave. Common. Phenology: vegetative only.RMRM391847 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James887Robert J. Hill1973713194U.S.A.WyomingUintaGreat Divide Basin and Adjacent Regions: Grizzly Buttes: in the Canyonlands and erosional badlands near Mountain View.-110.228341.22132073Along floodplain of Leavitt Creek. Phenology: vegetative only.RMRM383430 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4389Richard W. Scott1985624175U.S.A.WyomingFremontAlong the Wind River, N of Riverton.-108.310843.09161463Deciduous ribbon forest along river. Phenology: vegetative only.RMRM616021 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8057Richard W. Scott1991618169U.S.A.WyomingFremontUpper Red Canyon Creek.-108.687842.55662042Banks of creek. Phenology: vegetative only.RMRM616137 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8573Richard W. Scott1992619171U.S.A.WyomingFremontAlong Sioux Creek.1884Moist sagebrush slopes along creek. Phenology: fruiting.RMRM316617 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3223Robert D. Dorn197965156U.S.A.WyomingLaramieCanyon below Crystal Lake Dam.-105.195641.15962134Seep area with Ribes and Urtica. Tree 5 m high. Phenology: vegetative only.RMRM595012 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5555Robert D. Dorn1994521141U.S.A.WyomingPlatte17 mi NW of Wheatland.-105.233742.21191646Edge of wash with Elymus and Taraxacum. Tree 10 in DBH. Phenology: vegetative only.RMRM594692 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5650Robert D. Dorn199468159U.S.A.WyomingAlbany8 mi SE of Laramie.-105.431441.22492621Meadow with Artemisia and Senecio. Tree 6 in. DBH. Phenology: flowering.RMRM741252 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9711Robert D. Dorn200365156U.S.A.WyomingGoshenFort Laramie National Historic Site: Platte River bridge.-104.53542.211310River bank with P.deltoides and Bromus Uncommon; tree 2 m high. Phenology: vegetative only.RMRM315968 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James323Robert W. Lichvar1977613164U.S.A.WyomingTetonGros Ventre Mountains: Gros Ventre Canyon.-110.596443.6342073In rocky soil; growing with Mimulus sp. And Salix sp.. Common. Phenology: vegetative only.RMRM315642 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James371Robert W. Lichvar1977620171U.S.A.WyomingTetonGros Ventre Mountains: Gros Ventre River.-110.595743.63382042Large stand of trees to 70 feet high in dark soil. Common. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3263Amy J. Roderick199784216U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: North Platte River running through Saratoga, ca 0.5 air mi from town center.-106.793441.44682070Shaded banks of river lined with cottonwood and willow. Phenology: vegetative only.RMRM718733 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3948Ron Kass199469160U.S.A.WyomingSubletteBLM campground adjacent to New Fork River.-109.860742.60062089Narrowleaf cottonwood and willows. Phenology: vegetative only.RMRM304727 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. JamesR-1069Ronald G. Schreibeis1977823235U.S.A.WyomingBig HornCa 9 mi W of Basin along the Greybull River.-108.218244.37862926In riparian zone near reservoir. Uncommon. Phenology: vegetative only.RMRM366668 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. JamesRH177aSteve Kilpatrick J. L. Robinson1982722203U.S.A.WyomingGoshenWyoming Game and Fish Department's Rawhide unit along the North Platte River, ca 3 air mi SE of Lingle; ca 7.3 air mi WNW of Torrington.-104.306842.09921250Dry sandy soil on an island with P. acuminata. Phenology: vegetative only.RMRM700153 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11582Stuart Markow1998523143U.S.A.WyomingTetonGrand Teton National Park: sagebrush flat on west side of Gros Ventre Campground, ca 2 air mi SW of Kelly, 10.5 air mi N of Jackson.-110.795643.61961981Moist depression adjacent to roadside with cottonwoods, conifers and forbs; highly disturbed. Phenology: flowering & fruiting.RMRM382158 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James262Suzanne E. Judd1986913256U.S.A.WyomingFremontWest of Lysite.-107.726243.2781603In a grove of trees. Phenology: vegetative only.RMRM69132 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James18aVie Willits1909517137U.S.A.WyomingSheridanLittle Goose Creek.-106.979844.702611581402Banks of large streams. Phenology: flowering.RMRM69132 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James18bVie Willits19108213U.S.A.WyomingSheridanLittle Goose Creek.-106.979844.702611581402Banks of large streams. Phenology: vegetative only.RMRM311492 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James342Wilhelm G. Solheim1930714195U.S.A.WyomingAlbanyCentennial; along North Fork Little Laramie River.-106.119141.29672461Moist soil along river. Phenology: vegetative only.RMRM682396 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17589Walter Fertig1997626177U.S.A.WyomingParkAbsaroka Range: ridge system on north side of North Fork Shoshone River, ca 0.2 mi N of the river and on the east side of small tributary creek.-109.542844.461821952256Thicket of Populus angustifolia along small stream in narrow shady canyon of volcanic andesite. Phenology: fruiting.RMRM710983 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James73181Ronald L. Hartman2001730211U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Jemez Falls Road to turn south; two track and bushwack to southwest corner of Ranch.-106.61735.82769424392489Ponderosa pine forest with rock outcrops and swales. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3339Amy J. Roderick199786218U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Fort Steele State Recreation Area, ca 6.6 air mi NW of Walcott Junction; ca 8.4 air mi E of Sinclair.-106.954141.77661981Grassy area near river shaded by cottonwoods. Phenology: fruiting.RMRM316617 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3223Robert D. Dorn197965156U.S.A.WyomingLaramieCanyon below Crystal Lake Dam.-105.202241.15312134Seep area with Ribes and Urtica. Phenology: vegetative only.RMRM595012 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5555Robert D. Dorn1994521141U.S.A.WyomingPlatte17 mi NW of Wheatland.-105.233742.21191646Edge of wash with Elymus and Taraxacum. Phenology: vegetative only.RMRM594692 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5650Robert D. Dorn199468159U.S.A.WyomingAlbany8 mi SE of Laramie.-105.431441.22492621Meadow with Artemisia and Senecio. Phenology: flowering.RMRM615292 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7095Robert D. Dorn1996725207U.S.A.WyomingCrookOgden Creek.-104.406444.46491920Stream bank with Betula, Corylus. Phenology: vegetative only.RMRM759922 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James49814B. E. Nelson2000620172U.S.A.ColoradoRouttNorth-central Colorado: Elkhead Mountains: along South Fork Slater Creek at the forest boundary, ca 34 air mi NW of Steamboat Springs; ca 26 air mi NNE of Craig.-107.289940.837923472439Along the stream. Phenology: vegetative only.RMRM759923 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James50145B. E. Nelson2000629181U.S.A.ColoradoRouttNorth-central Colorado: Elkhead Mountains: N of Dry Fork Elkhead Creek, ca 1 air mi SW of Elkhead; ca 10 air mi N of Hayden.-107.233240.636721092146Grassy bottom of a draw. Phenology: vegetative only.RMRM759918 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James67138Ronald L. Hartman200065157U.S.A.ColoradoGrandNorth-central Colorado: Gore Range: upper Gore Canyon, Inspiration Point and slopes below.-106.473640.009623172439Douglas fir and aspen and roadside. Phenology: vegetative only.RMRM759917 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James69493Ronald L. Hartman200087220U.S.A.ColoradoJacksonNorth-central Colorado: North Park: 3.5-4.5 air mi SW of Delaney Butte, ca 14-15 air mi WSW of Walden.-106.52940.64792530Roadside, sagebrush flats, and irrigation ditch. Phenology: vegetative only.RMRM759916 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James69549Ronald L. Hartman200087220U.S.A.ColoradoJacksonNorth-central Colorado: North Park: east side of Walden Reservoir, just W of Walden.-106.307440.7342500Roadside to shore. Phenology: vegetative only.RMRM759915 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James70068Ronald L. Hartman2000817230U.S.A.ColoradoJacksonNorth-central Colorado: Park Range: Newcomb Park Trail, 2.5-4.0 trail mi beyond trail head, ca 21.5-22.5 air mi SW of Walden.-106.642640.589926822987Granitic domes, ponds, and coniferous forest. Phenology: vegetative only.RMRM764355 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James53359B. E. Nelson2001627178U.S.A.ColoradoRouttNorth-central Colorado: Park Range: at the junction of Bedrock and Tennessee creeks, along Beeler Gulch and vicinity, ca 35.5 air mi NNW of Steamboat Springs.-107.024540.96722312262Along the stream. Phenology: vegetative only.RMRM836858 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68113B. E. Nelson David Scott200662153U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: N of Oxbow Bend, ca 1.5 air mi E of Jackson Lake Junction; ca 29.5 air mi NNW of Jackson.-110.548943.86820482134Roadside and edge of parking lot. Phenology: vegetative only.RMRM836857 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68324B. E. Nelson200665156U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: flood plain and bluff between the Snake River and The Potholes, ca 5.5 air mi SW of Moran; ca 23.5 air mi NNE of Jackson.-110.589943.790720422073Cottonwood grove at the base of cobblestone bluff. Phenology: vegetative only.RMRM836856 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68350B. E. Nelson200665156U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: along the Snake River on the point E of Deadmans Bar, ca 7.5 air mi SW of Moran; ca 21 air mi NNE of Jackson.-110.611643.760220242054Flats along the river. Phenology: vegetative only.RMRM836855 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68423B. E. Nelson David Scott, Nancy Bockino200667158U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole; west shore and adjacent slope of Spalding Bay on Jackson Lake, ca 8.5 air mi W of Moran; ca 24.5 mi N of Jackson.-110.553743.760820602115Brushy slope adjacent to the lake. Phenology: vegetative only.RMRM836854 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68447B. E. Nelson David Scott, Nancy Bockino200667158U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: the old Bar BC Ranch and vicinity on the west side of the Snake River, ca 3 air mi NNE of Moose; ca 15.5 air mi N of Jackson.-110.695243.69819872003Cobblestone bluff. Phenology: vegetative only.RMRM836853 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68528B. E. Nelson David Scott, Nancy Bockino200669160U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Teton Range: Apex Trail at the east base of Teewinot Mountain above Lupine Meadows, ca 6 air mi NNW of Moose; ca 18 air mi N of Jackson.-110.753343.739321342439Edge of a stream. Phenology: vegetative only.RMRM836852 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68601B. E. Nelson2006610161U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Teton Range: lower Death Canyon NW of Phelps Lake along the Death Canyon Trail, ca 5.5-6 air mi W of Moose; ca 13-14 air mi NNW of Jackson.-110.83143.664121952317Along the trail with cliffs, steep forb or brushy slopes, and small wooded areas. Phenology: vegetative only.RMRM836851 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68727B. E. Nelson2006612163U.S.A.WyomingTetonBridger-Teton National Forest: Jackson Hole: along Pacific Creek below Pacific Creek Campground, ca 7.5 air mi NNE of Moran; ca 36 air mi NE of Jackson.-110.446843.93452134Stony flats in valley bottom. Phenology: vegetative only.RMRM836850 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68927B. E. Nelson David Scott2006615166U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: "Wolff Ridge" on the north side of Spread Creek Valley, ca 3.5 air mi SW of Moran; ca 25 air mi NE of Jackson.-110.537743.79212103Base and lower south-facing cobblestone slope. Phenology: fruiting.RMRM836849 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James68939B. E. Nelson David Scott2006615166U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: "Wolff Ridge" on the north side of Spread Creek Valley, ca 3.5 air mi SW of Moran; ca 25 air mi NE of Jackson.-110.537743.79212103Base and lower south-facing cobblestone slope. Phenology: vegetative only.RMRM836860 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1248David Scott Geneva Chong, Ronald L. Hartman2006629180U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: on Blacktail Butte, ca 1 air mi E of Moose; ca 13 air mi NNE of Jackson.-110.697843.65792003Herbaceous meadow flanked by Populus tremuloides forest and occasional Populus angustifolia. Phenology: vegetative only.RMRM836859 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2354David Scott Amanda Richardson2006726207U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: near Two Ocean Lake, ca 6 air mi N of Moran; ca 21.5 air mi NE of Moose.-110.496243.92422239Pinus contorta and Picea engelmannii forest with small openings. Phenology: vegetative only.RMRM836863 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James36David Scott2006531151U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: Gros Ventre River near Gros Ventre Junction, ca 6.5 air mi N of Jackson; ca 6 air mi S of Moose.-110.735643.57291950Sagebrush valley bottom with scattered cottonwoods along river and irrigation ditches. Phenology: vegetative only.RMRM836862 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James475David Scott Nancy Bockino2006612163U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: near southwest base of Uhl Hill, ca 1.5 air mi S of Moran; ca 15.5 air mi NE of Moose.-110.49743.81392089Pasture with heavily disturbed areas near base of hill. Phenology: vegetative only.RMRM836861 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James937David Scott Nancy Bockino2006625176U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: west shore of Jackson Lake, ca 12.5 air mi NW of Moran; ca 20 air mi N of Moose.-110.702843.94462073Riparian community near stream inlet to lake. Phenology: vegetative only.RMRM836848 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James82431Ronald L. Hartman2006621172U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: 0.6 road mi S of turnoff to Signal Mountain Overlook.-110.616243.8182103Sagebrush flats. Phenology: vegetative only.RMRM836847 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James82682Ronald L. Hartman2006625176U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: U.S. Hwy 26/89/191, S of Gros Ventre River.-110.732543.56611951Bottom land with Populus angustifolia. Phenology: vegetative only.RMRM836846 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James83041Ronald L. Hartman2006630181U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: U.S. Hwy 26/89/191, 0.8 road mi N of Spread Creek bridge.-110.532943.80722060Sagebrush flat and adjacent roadside with patches of willows. Phenology: vegetative only.RMRM839846 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3650David Scott Tacheeni Scott2007620171U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Jackson Hole: near Pilgrim Creek, ca 7 air mi NW of Moran; ca 20.5 air mi NE of Moose.-110.562343.92682134Scoured stream bottomland with cobble, gravel, and sand bars and scattered Populus balsamifera. Phenology: vegetative only.RMRM839845 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4041David Scott Tacheeni Scott2007628179U.S.A.WyomingTetonBridger-Teton National Forest: Teton Wilderness: near East Fork Pilgrim Creek, ca 9 air mi N of Moran; ca 23 air mi NNE of Moose.-110.531243.9622524Steep and dry slope with volcanic soils. Phenology: vegetative only.RMRM839844 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4749David Scott Mike Straw2007717198U.S.A.WyomingTetonBridger-Teton National Forest: Teton Wilderness: near Pilgrim Creek, ca 11.5 air mi N of Moran; ca 25 air mi NNE of Moose.-110.542643.99582253Scoured montane stream bed with cobble and sand bars, and moist stream banks. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3600Amy J. Roderick1997812224U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Alpha Ditch along County Road 101, ca 3.5 air mi S of Elk Mountain townsite; ca 10.7 air mi WNW of Arlington.-106.41141.63512314Semi-moist ditch associated with Phleum pratense and sparse stands of cottonwood, willow, and birch. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1442Neil Snow1987723204U.S.A.WyomingTetonSouthwestern Absarokas: Teton Wilderness: ca 12.5 air mi NE of Moran Junction; along Gravel Creek.-110.363943.99662195Along creek.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James402Neil Snow1987614165U.S.A.WyomingTetonSouthwestern Absarokas: Teton National Forest: ca 8 mi E of Moran Junction along U.S. Hwy 26 at Blackrock Ranger Station, near Blackrock Creek.-110.3466743.820562103Open sage with scattered Salix near creek; some disturbed areas.RMRM99298 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James602Arthur C. McIntosh1924814227U.S.A.South DakotaLawrencePluma.-103.739344.35961432Along creek. Phenology: vegetative only.RMRM110811 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1345Herman E. Hayward1927623174U.S.A.South DakotaLawrenceLower Spearfish Canyon.-103.895744.407311281707Mesophytic canyon; oak, willow, and Prunus association. Phenology: vegetative only.RMRM110812 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2621Herman E. Hayward192783215U.S.A.South DakotaMeadeBear Butte Creek.-103.560744.409210791118Streamside; oak, willow, and elm association; mesophytic. Phenology: vegetative only.RMRM544616 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5031Robert D. Dorn1989711192U.S.A.South DakotaMeadeWhitewood Creek (Along the Creek).-103.566144.5466963Upper terrace flood plain with Fraxinus and Symphoricarpos association. Tree 4 in DBH. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James552Amy J. Roderick Ronald L. Hartman1997611162U.S.A.WyomingNatronaLaramie Range: Sand Draw S of County Road 403, ca 23.4 air mi SW of Casper.-106.432842.52581859Dry river bed and roadside. Phenology: fruiting.RMRM549154 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James51-1989T. Van BruggenU.S.A.South DakotaLawrenceIron Creek Canyon.-103.923144.37281487In moist soil along stream in canyon. Common. Phenology: vegetative only.RMRM92795 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James52W. P. Carr1913711192U.S.A.South DakotaLawrenceDeadwood.-103.728744.377513171737Canyons. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1806B. A. Packer J. Brondum and T. McGowan1997715196U.S.A.WyomingAlbanyLaramie Range: Halleck Canyon Road along Little Halleck Creek, ca 31 air mi NE of Laramie.-105.32241.849318441947Creekside. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1810B. A. Packer J. Brondum and T. McGowan1997715196U.S.A.WyomingAlbanyLaramie Range: Halleck Canyon Road along Little Halleck Creek, ca 31 air mi NE of Laramie.-105.32241.849318441947Creekside. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2018B. A. Packer J. Brondum and T. McGowan1997722203U.S.A.WyomingAlbanyLaramie Range: along Luman Creek, ca 15 road mi W of Wheatland.-105.244542.05451600Creekside. Phenology: vegetative only.RMRM11257 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. Jamess.n.A. A. Heller E. Gertrude Heller1897514134U.S.A.New MexicoSanta FeSanta Fe Canyon, 9 mi E of Santa Fe.-105.8174935.69142439Phenology: flowering.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2117bB. A. Packer J. Brondum and T. McGowan1997724205U.S.A.WyomingAlbanyLaramie Range: along Horseshoe and Soldier creeks, ca 20 air mi SE of Douglas.-105.35242.38442216Creekside, granite outcrops, and mountain meadow. Phenology: vegetative only.RMRM540743 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3602Betsy E. Neely1986630181U.S.A.ColoradoLarimerPhantom Canyon Ranch, 0.5 mile NE of Cherokee Park road.1951Mixed grass parkland dominated by Stipa comata, Chondrosum gracile. Phenology: vegetative only.RMRM210991 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4465C. L. Porter1948515136U.S.A.ColoradoMoffatDinosaur National Monument: Castle Park: Yampa River.Phenology: vegetative only.RMRM274872 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9515C. L. Porter Marjorie W. Porter1964625177U.S.A.ColoradoHuerfanoAbout 20 mi W of Walsenburg, on the E side of La Veta Pass.2317Common along streams in scrub-oak zone. Phenology: vegetative only.RMRM45226 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2316C. S. Crandall1897519139U.S.A.ColoradoLarimerFort Collins.Phenology: flowering.RMRM13694 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James50Carl F. Baker F. S. Earle and S. M. Tracy1898623174U.S.A.ColoradoMancos.Common along river bottom. Phenology: fruiting.RMRM165978 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James65Carl F. Baker190167158U.S.A.ColoradoMontroseCimarron.2103Phenology: fruiting.RMRM364462 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James13667Elizabeth Neese1983618169U.S.A.ColoradoMesa9 mi NE of Gateway, along West Creek, ca 8 air mi E of Utah border.1646Riparian community of cottonwood and sqawbush, in loamy gravel. Phenology: fruiting.RMRM80733 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James374Edwin B. Payson191462153U.S.A.ColoradoMontroseTabeguache Basin.2439Near creek. Phenology: vegetative only.RMRM102195 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3917Edwin B. Payson Lois Payson1924711193U.S.A.ColoradoMontroseWestern Montrose County.1646Common in river bottom. Phenology: vegetative only.RMRM75520 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James443Ernest P. Walker1912811224U.S.A.ColoradoSan MiguelNorwood Hill.2134River bottoms. Phenology: fruiting.RMRM56755 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1546Francis Ramaley1906530150U.S.A.ColoradoBoulderNear Boulder.Phenology: fruiting.RMRM56688 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1547Francis Ramaley1906530150U.S.A.ColoradoBoulderNear Boulder.Phenology: fruiting.RMRM56756 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2506Francis Ramaley190681213U.S.A.ColoradoBoulderGregory Canyon, near Boulder.Phenology: vegetative only.RMRM56757 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2608Francis Ramaley1906929272U.S.A.ColoradoBoulderNear Boulder.Phenology: vegetative only.RMRM32544 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James693Francis Ramaley1901528148U.S.A.ColoradoBoulderNear Boulder.-105.277640.0161646Phenology: fruiting.RMRM43700 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5030Frank Tweedy19027182U.S.A.ColoradoBoulderNear Boulder.15241829Plains and foothills. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2913B. A. Packer J. Brondum and T. McGowan199789221U.S.A.WyomingAlbanyLaramie Range: along Bear Creek, ca 33 air mi SW of Douglas.-105.644142.20962274Creekside. Phenology: vegetative only.RMRM98847 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1025Hazel M. Schmoll1924612164U.S.A.ColoradoAlamosaSandy soil on S side of Rio Grande.Along river. Phenology: vegetative only.RMRM98869 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1170Hazel M. Schmoll1924619171U.S.A.ColoradoArchuletaPiedra: along Piedra River.Dominant canopy tree bordering Piedra River, Devil's Creek, etc. Phenology: fruiting.RMRM256989 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3973Jean H. Langenheim1954829241U.S.A.ColoradoGunnisonCopper Creek Valley, ca 1.5 miles from Gothic.-106.9665638.969383059South facing slope; limestone biotherm, Gothic formation. With Populus tremuloides, Acer glabrum, Cornus stolonifera. Only specimens in area. Phenology: vegetative only.RMRM97059 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James376L. M. Schedin N. T. SchedinU.S.A.ColoradoLakeNear Leadville.-106.2915539.244783079Phenology: vegetative only.RMRM33541 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6366P. A. Rydberg F. K. Vreeland190058128U.S.A.ColoradoNo countyPlains near Denver.1500Phenology: flowering.RMUSFS444371 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. Jamess.n.Richard T. Guthrie1911831243U.S.A.ColoradoNo countyArapaho National Forest.3048Fairly dry hillside. Phenology: vegetative only.RMRM546092 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. JamesCO-830Randall J. Bayer Glenn Bilodeau and Daniel Lebedyk.1988710192U.S.A.ColoradoGunnisonAlong the Taylor River on the western edge of the city of Gunnison.-106.91666738.552348Floodplain. Phenology: vegetative only.RMRM546107 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. JamesCO-830Randall J. Bayer Glenn Bilodeau and Daniel Lebedyk.1988710192U.S.A.ColoradoGunnisonAlong the Taylor River on the western edge of the city of Gunnison.-106.91666738.552348Floodplain. Phenology: vegetative only.RMRM681550 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8395Robert D. Dorn2000728210U.S.A.ColoradoLa PlataW of Durango along Highway 160.-107.96166737.272195Stream bank with Salix irrorata, Populus tremuloides. Phenology: vegetative only.RMRM681563 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8408Robert D. Dorn2000728210U.S.A.ColoradoSan JuanAlong Cascade Creek Road at Highway 550.2621Rocky bank with Salix monticola. Phenology: vegetative only.RMRM681568 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8413Robert D. Dorn2000728210U.S.A.ColoradoHinsdaleNear Piedra River.-107.19166737.4233332347Roadside ditch with Salix eriocephala ligulifolia, Salix exigua. Phenology: vegetative only.RMRM681575 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8420Robert D. Dorn2000729211U.S.A.ColoradoMineralMountains NW of Pagosa Springs.-107.1237.4466672652Meadow with Veratrum, Phleum. Phenology: vegetative only.RMRM702751 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8820Robert D. Dorn200173184U.S.A.New MexicoSan JuanCa 3 mi N of La Plata.-108.1936.9751859Ditch bank with Populus deltoides, Populus acuminata. Phenology: vegetative only.RMRM702789 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8825Robert D. Dorn200173184U.S.A.New MexicoRio ArribaAlong Highway 64, W of Junction with Highway 537.-107.0782936.78172225Roadside with Populus acuminata, Salix exigua. Phenology: vegetative only.RMRM718145 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9505Robert D. Dorn2002813225U.S.A.ColoradoDoloresL Road between 15 and 16 Roads, ca 8 mi SE of Dove Creek.-108.76833337.722195Dry wash with Chrysothamnus. Phenology: vegetative only.RMRM718143 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9507Robert D. Dorn2002814226U.S.A.ColoradoSan MiguelChico Creek at Highway 141 ca 2 mi S of Egnar.-108.9437.8833332164Dry wash with Chrysothamnus, Elymus. Phenology: vegetative only.RMRM296528 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2111Ronald L. Hartman1968625177U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: ruins, 2 mi W of Pueblano camp in the South Ponil Canyon.-105.1351936.629192530Common along stream. Phenology: fruiting.RMRM396983 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2997Steve O'Kane198761152U.S.A.ColoradoMoffatPool Canyon, 0.2 mi E of Utah border.-109.045940.47061878Infrequent locally. In canyon bottom with Pinus, Juniperus, Rhus and Symphoricarpos. Weber formation. Phenology: vegetative only.RMRM577073 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1758Tim Hogan199267159U.S.A.ColoradoBoulderBoulder Mountain Parks, upper Bear Creek.2195In mixed forest of Pinus ponderosa and Pseudotsuga menziesii; a rich shrub habitat of Salix spp., Prunus spp., Populus spp., Acer glabrum, Betula fontinalis, Swida sericea, Physocarpus monogynus. Phenology: vegetative only.RMRM577054 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1863Tim Hogan199273185U.S.A.ColoradoBoulderBoulder Mountain Parks. Enchanted Mesa and lower Skunk Creek.1768Grassy mesa tops and plains riparian vegetation along drainage. Along drainage. Phenology: vegetative only.RMRM729999 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3161Tim Hogan1997630181U.S.A.ColoradoSan JuanSan Juan Range: West Needle Mountains: confluence of Molas Creek and Animas River.2713River terrace with cottonwoods, willows, birch, and alder. Phenology: vegetative only.RMRM78966 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10W. H. Haas19137182U.S.A.ColoradoMontezumaMesa Verde National Park.Phenology: vegetative only.RMRM530518 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8531W. L. Baker1985621172U.S.A.ColoradoGunnisonW bank of Gunnison River, ca 1 mi SW of Almont.2425Alluvium of terrace above riverbank with Populus angustifolia and Cornus. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James99B. A. Packer J. Brondum and T. McGowan1997517137U.S.A.WyomingPlatteLaramie Range: ca 42 road mi NE of Laramie; ca 1.5 mi NNW of Wyo Hwy 34.-105.302641.922615881609Creekside with granite outcrops. Phenology: vegetative only.RMUSFS444370 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James209William H. Mast1911510130U.S.A.ColoradoNo countyGunnison National Forest.2439Sandy loam. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James40660B. E. Nelson1997622173U.S.A.WyomingNatronaLaramie Range: E of Little Red Creek on the southwest side of Casper Mountain, ca 10.5 air mi SW of Casper.18591951Along the stream. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James41404B. E. Nelson1997715196U.S.A.WyomingConverseLaramie Range: along Horseshoe Creek just above Trail Creek, ca 6 air mi N of Laramie Peak, ca 6 air mi SW of Esterbrook; ca 28 air mi S of Douglas.-105.449942.355819391975Flats above the creek. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James42589B. E. Nelson1997812224U.S.A.WyomingAlbanyLaramie Range: along Three Cripples Creek ca 1-1.5 air mi W of Harris Park or Forest Road 633, ca 1.5-2 air mi ESE of Esterbrook; ca 25 air mi S of Douglas.-105.332442.413116951798Brushy canyon bottom along the stream. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James42663B. E. Nelson1997813225U.S.A.WyomingConverse[location and coordinates withheld]1713Thickets and fencerow in the creek bottom. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James43032B. E. Nelson1997819231U.S.A.WyomingNatronaLaramie Range: along Smith Creek below Otter Creek at the east end of Muddy Mountain on Smith Creek or County Road 607, ca 16 air mi SE of Casper.-106.157642.656918841981Stream bank and thickets along the stream. Phenology: vegetative only.RM1014775 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James32175Ronald L. Hartman Bruce Embury1992511132U.S.A.WyomingLincolnSouthern Salt River Range and Vicinity: Gannett Hills : 0.5-1 air mi E of Idaho; 13 air mi N of Border Junction.-111.02138942.40666719142222South exposure, steep rocky slopes and grassy or sagebrush ridge and wet roadside below. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1318Thomas Cramer Jane T. Kellett1994628179U.S.A.WyomingLincolnSouthern Salt River Range and Vicinity: Chalk Creek, ca 7 air mi N of Cokeville.-110.95888942.18638920122317Hillside seeps, streamside, and sagebrush canyon bottom. Phenology: vegetative only.RMRM695949 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James21382B. E. Nelson Stuart Markow and Michelle Nelson1991625176U.S.A.WyomingLincolnTarghee National Forest: Snake River Range: along Red Creek to basin at the foot of Red and Deadhorse Peaks, ca 5-5.5 air mi NE of Alpine, ca 33-34 air mi N of Afton.-110.940543.204417682073Brushy canyon bottom with scattered Douglas fir and aspen. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James28597Ronald L. Hartman Stuart Markow199164155U.S.A.IdahoBonnevilleTarghee National Forest: Snake River Range: Big Elk Creek trailhead adjacent to the YMCA Camp.-111.107243.333217681829Wooded slopes with Populus tremuloides, Picea pungens, Pseudotsuga, Prunus, Amelanchier, and Juniperus with grassy lower slopes dominated by Purshia and Balsamorhiza or Artemisia tridentata and Symphoricarpos with occasional limestone outcrop.RMRM695947 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James28763Ronald L. Hartman Stuart Markow199166157U.S.A.WyomingTetonBridger-Teton National Forest: Snake River Range: Mosquito Creek, ca 4 air mi SSW of Wilson.-110.901943.459718902042Riparian area with Engelmann spruce, subalpine fir, and narrow-leaved cottonwood. Phenology: vegetative only.RMRM695948 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James28868Ronald L. Hartman Stuart Markow199166157U.S.A.WyomingTetonBridger-Teton National Forest: Snake River Range: ca 1 air mi NE of Astoria Mineral Hot Springs.-110.764243.303317982286Limestone and shale outcrops and rock slides, grassy slopes and ridges, and Douglas fir forest. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1396Stuart Markow B. E. Nelson and Michelle Nelson1991626177U.S.A.IdahoBonnevilleTarghee National Forest: Snake River Range: Palisades Creek, just E of entrance to National Forest, ca 2 air mi NE of Irwin.-111.220743.400817071951Open slope, dominated by forbs and shrubs, mostly Purshia and bunchgrasses.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1611Stuart Markow1991628179U.S.A.IdahoBonnevilleTarghee National Forest: West Slope Snake River Range: trail along North Fork of Rainey Creek, ca 6 air mi NE of Swan Valley.-111.200843.517218291951Mostly riparian, dominated by Salix, Cornus, Prunus and Lonicera.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4319Amy J. Roderick199862153U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: Rattlesnake Hills: Dry Creek N of Dry Creek or County Road 321, ca 14.5 air mi NW of junction with Wyo Hwy 220.-107.317542.70062042Banks of cottonwood-lined creek. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2010Stuart Markow199174185U.S.A.IdahoTetonTarghee National Forest: East Slope Big Hole Mountains: along Superior Creek, ca 10 air mi W of Driggs.-111.312543.71641951Along creek dominated by Salix, Heracleum, and Prunus.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3563B. A. Packer T. McGowan1998624175U.S.A.WyomingConverseLaramie Range: Freds Draw, ca 4.5 air mi NW of Esterbrook.-105.393242.486116761722In dry creek bed. Phenology: vegetative only.RMRM695930 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3504Stuart Markow1991720201U.S.A.WyomingTetonBridger-Teton National Forest: East Slope Snake River Range: Coburn Creek Trail, from Prichard Pass.-110.840743.335619202012Largely riparian, alternating with coniferous forest dominated by Pinus contorta and Picea engelmannii. Phenology: vegetative only.RMRM695931 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3617Stuart Markow1991722203U.S.A.WyomingTetonTarghee National Forest: West Slope Teton Range: Fox Creek, just E of National Forest boundary, ca 4.5 air mi NE of Victor, Idaho.-111.01443.633820732103Coniferous forest adjacent to riparian, dominated by Abies lasiocarpa, Pseudotsuga menziesii, and Cornus stolonifera. Phenology: vegetative only.RMRM695932 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3762Stuart Markow1991722203U.S.A.WyomingTetonTarghee National Forest: Northwest Slope Snake River Range: Mail Cabin Creek, ca 11 air mi W of Jackson.-111.01443.504223172439Coniferous forest dominated by Abies lasiocarpa and Picea engelmannii, with many openings and some riparian. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3611B. A. Packer T. McGowan1998625176U.S.A.WyomingConverseLaramie Range: along Indian Creek, ca 7 air mi NW of Esterbrook; ca 17 air mi SW of Douglas.-105.464442.482216761737Along creek bank. Phenology: vegetative only.RMRM695933 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3975Stuart Markow1991724205U.S.A.WyomingTetonTarghee National Forest: West Slope Teton Range: just W of Fox Creek Pass, adjacent to Grand Teton National Park, ca 11 air mi SE of Driggs, Idaho.-110.974243.633821952317Open slope dominated by forbs, with some riparian and some patches of Picea engelmannii and Abies lasiocarpa. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3703B. A. Packer T. McGowan and T. Freeman1998630181U.S.A.WyomingPlatteLaramie Range: ca 6 road mi from Glendo on County Road 614.-105.117942.442613711524Along roadside and in canyons. Phenology: vegetative only.RMRM695934 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4773Stuart Markow199181213U.S.A.WyomingLincolnTarghee National Forest: West Slope Snake River Range: South Fork of Indian Creek, ca 5 air mi N of Alpine Junction.-111.042443.245821342195Coniferous forest dominated by Picea engelmannii and Abies lasiocarpa. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5866Stuart Markow1991813225U.S.A.IdahoFremontTarghee National Forest: Island Park Plateau: Lower Mesa Falls Campground and vicinity.-111.304644.17961829Coniferous forest dominated by Pseudotsuga menziesii, with many clearings and some riparian.RMRM695936 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5966Stuart Markow1991815227U.S.A.WyomingTetonTarghee National Forest: West Slope Teton Range: Pinochle Road, ca 6 air mi NE of entrance to National Forest.-111.006343.921421342256Some patches of coniferous forest dominated by Pinus contorta. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James627Stuart Markow1991614165U.S.A.IdahoBonnevilleTarghee National Forest: Southwest Slope Big Hole Mountains: Table Rock Canyon, ca 2.5 air mi SE of Kelly Canyon Ski Area.-111.575943.61981585Dry stream bed and flood plain dominated by Populus angustifolia, Prunus, and Amelanchier.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3885B. A. Packer T. McGowan and T. Freeman199873184U.S.A.WyomingAlbanyLaramie Range: along Laramie River and adjacent hills, ca 35 air mi NE of Rock River; ca 54 air mi NE of Laramie.-105.760942.108521342195Along the river. Phenology: vegetative only.RMRM695937 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6465Stuart Markow1991819231U.S.A.WyomingTetonTarghee National Forest: West Slope Teton Range: Game Creek Trail, ca 4 air mi SE of Victor, Idaho.-111.033943.60520732500Coniferous forest, dominated by Picea engelmannii and Abies lasiocarpa with some areas of roadside weeds and riparian. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7119Stuart Markow199267159U.S.A.IdahoFremontTarghee National Forest: Henrys Lake Mountains: 0.5 mi SW of Targhee Pass, along Howard Creek, ca 9.5 air mi W of West Yellowstone, Montana.-111.306344.671220732134Riparian, dominated by Salix and Carex.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8577Stuart Markow199274186U.S.A.IdahoClarkTarghee National Forest: Centennial Mountains: Cottonwood Creek area, ca 6.5 air mi N of Kilgore.-111.888244.49632042Moist meadow, dominated by forbs and grasses.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8892Stuart Markow199276188U.S.A.IdahoFremontTarghee National Forest: Island Park Plateau: Swan Lake, ca 15 air mi N of Ashton.-111.465744.2951859Wet meadow surrounding lake, dominated by Carex.RMRM17849 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James296E. O. Wooton189786218U.S.A.New MexicoLincolnWhite Mountains.-105.7858933.476192469Phenology: vegetative only.RMRM58531 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. Jamess.n.E. O. Wooton19006152U.S.A.New MexicoDona AnaW of Organ Mountains.Phenology: vegetative only.RMUSFS444385 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12842Elbert L. Little Jr.195032180U.S.A.ArizonaCoconinoCoconino National Forest: Oak Creek Canyon, upper or north end; 15 mi S of Flagstaff.-111.7416935.02741829Fir-pine forest. Phenology: vegetative only.RMUSFS444388 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James612F. W. Haasts1919727208U.S.A.ArizonaCoconinoCoconino National Forest: Fort Valley Experiment Station; Turkey Tanks.1798Phenology: vegetative only.RMRM99721 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James660Herbert C. Hanson1923711192U.S.A.ArizonaCoconinoNear Flagstaff: Walnut Canyon.-111.5092935.17192042Phenology: vegetative only.RMRM55511 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James603O. B. Metcalfe1903825237U.S.A.New MexicoSocorroMogollon Mountains: on or near West Fork Gila River.2286Phenology: vegetative only.RMUSFS444387 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. Jamess.n.Robert R. HillU.S.A.ArizonaCoconinoCoconino National Forest.Coconino/Yavapai counties Phenology: vegetative only.RMUSFS444386 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James344W. Ellis Wiltbank1952810223U.S.A.New MexicoOteroLincoln (Alamo) National Forest: Bonita Creek above dam.2134Moderate northeast slope; shallow limestone soil; timber with grass, oak, blue grass. Phenology: vegetative only.RMUSFS444389 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1109William A. Dayton193067158U.S.A.ArizonaCoconinoCoconino National Forest: ca 4 mi WSW of Flagstaff.-111.714135.176492164Ponderosa pine. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James18710B. E. Nelson1990619170U.S.A.ColoradoRouttFlat Tops/White River Plateau: Williams Fork Mountains: above East Fork Williams Fork, ca 13 air mi SSW of Hayden; ca 28 air mi WSW of Steamboat Springs.-107.31840.31921342195Open slopes.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1685James P. Vanderhorst1990812224U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: Flat Tops Wilderness: South Fork White River Canyon, ca 27 air mi ESE of Meeker.-107.493939.8478Rocky canyon with Douglas fir, oak, maple, and chokecherry.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1904James P. Vanderhorst1990824236U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Grizzly Creek, ca 4 air mi E of Glenwood Springs.-107.249339.571418291890Canyon bottom, with cottonwood, Douglas fir, spruce, and dogwood.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1998James P. Vanderhorst1990828240U.S.A.ColoradoEagleFlat Tops/White River Plateau: Colorado River, ca 12 air mi WNW of Eagle.-107.078739.69151890Rocky river bottom with cottonwoods, willows, sagebrush, oak, and juniper.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2334James P. Vanderhorst199166157U.S.A.ColoradoEagle[location and coordinates withheld]2012Along creek, with cottonwood and boxelder.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2505James P. Vanderhorst199169160U.S.A.ColoradoRio Blanco[location and coordinates withheld]2195Wet area around old homestead.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2683James P. Vanderhorst1991617168U.S.A.ColoradoEagleFlat Tops/White River Plateau: Colorado River, ca 20 air mi N of Eagle.-106.770139.91192012Terrace alluvium and dry wash, with Yucca, sagebrush, and narrowleaf cottonwood.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2730James P. Vanderhorst1991619170U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Mitchell Creek, ca 3 air mi NW of downtown Glenwood Springs.-107.362239.585918292317Lush, overgrown creek bottom, with narrowleaf cottonwood, Douglas fir, blue spruce, aspen, dogwood, and water birch.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2935James P. Vanderhorst1991628179U.S.A.ColoradoRouttFlat Tops/White River Plateau: Beaver Creek, ca 20 air mi SSW of Hayden.-107.429240.27472073Weedy riparian zone, with cottonwood and willows.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3293James P. Vanderhorst Carlos Palaci1991715196U.S.A.ColoradoRouttFlat Tops/White River Plateau: creek N of Colorado River NW of and near McCoy, ca 18 air mi SSE of Yampa.-106.750839.92662103Wet arroyo bottom, with cottonwood, willows, sedges, and grasses.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3704James P. Vanderhorst199184216U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: Cyclone Creek, ca 19 air mi WSW of Oak Creek.-107.298940.18642621Riparian zone, with aspen, alder, and cottonwood.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James617James P. Vanderhorst1990625176U.S.A.ColoradoEagleFlat Tops/White River Plateau: ravine off east side of Colorado River, 16 air mi NE of Glenwood Springs; 3.8 road mi N of Dotsero.-107.078739.691518902012Sandy beach along river.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5386B. A. Packer T. McGowan and J. Brondum1998815227U.S.A.WyomingNatronaLaramie Range: off of Wyo Hwy 487, ca 40 air mi SE of Casper on County Road 402.-106.393542.642317981890Dry creekbeds. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James906James P. Vanderhorst199079190U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: north end of "Hayflat Trail", ca 11 air mi SSE of Meeker.-107.870239.89152439Aspen woods and meadows.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James936James P. Vanderhorst1990710191U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: North Fork White River near Lost Creek Guard Station, ca 25 air mi E of Meeker.-107.474640.05522317Roadside and pasture near guard station.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24581Ronald L. Hartman James P. Vanderhorst1990523143U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Joe Hill Road, ca 7 air mi N of New Castle.-107.550339.67322256Southern exposure; limestone, steep talus slopes and outcrops; oak, serviceberry, pinyon, and narrowleaf cottonwood.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24813Ronald L. Hartman1990527147U.S.A.ColoradoEagleFlat Tops/White River Plateau: Deep Creek, ca 14 air mi W of Eagle.-107.098839.673219812134Douglas fir-narrowleaf cottonwood adjacent to creek, sagebrush openings, oak-serviceberry shrubland, pinyon-juniper, and limestone outcrops; Douglas fir-narrowleaf cottonwood.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James25598Ronald L. Hartman1990622173U.S.A.ColoradoRouttFlat Tops/White River Plateau: above Williams Fork, ca 13 air mi SSW of Hayden.-107.31840.31920732195Sandstone and shale outcrop with oak, serviceberry, and chokecherry and roadside; roadside.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James25820Ronald L. Hartman1990624175U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Main Elk Creek from trailhead to just beyond confluence with Deep Creek, ca 15 air mi NE of Rifle.-107.58839.702317071951Oak-juniper scrub community below; spruce, spruce-Douglas fir communities in canyon bottoms and sides above.RMRM792938 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James37828B. E. Nelson Beth Ward199665157U.S.A.WyomingCarbonSouth-central Wyoming: The Sand Hills, ca 29.5 air mi SW of Rawlins; ca 25.5 air mi N of Baggs.21822195Stabilized sand dunes with silver sagebrush, bitterbrush, and rabbitbrush. Phenology: vegetative only.RMRM792937 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James38680B. E. Nelson1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: along Deep Gulch, North Fork Savery Creek, and Truckdrivers Creek below Sage Creek or County Road 401, ca 31.5 air mi S of Rawlins; ca 27 air mi NE of Baggs.22682378Stream bottom in the canyon. Phenology: vegetative only.RMRM792936 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James38737B. E. Nelson1996715197U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis.-107.336541.185422862347Willow-alder thickets and stream margins in the canyon bottom. Phenology: vegetative only.RMRM792935 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James39047B. E. Nelson1996718200U.S.A.WyomingSweetwater[location and coordinates withheld]21342140Meadows below the springs. Phenology: vegetative only.RMRM792934 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James39307B. E. Nelson1996723205U.S.A.WyomingCarbon[location and coordinates withheld]20212073In water and along a small stream. Phenology: vegetative only.RMRM792933 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James39818B. E. Nelson1996813226U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: along Dirtyman Fork and area to the south, 0.8-1.5 air mi SW of Dexter Peak, ca 5-5.5 air mi E of Tullis; ca 36 air mi S of Rawlins; ca 26.5 air mi NE of Baggs.24142612Lower slopes of the canyon near the stream. Phenology: vegetative only.RMRM792945 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1134Beth Ward1996620172U.S.A.WyomingCarbon[location and coordinates withheld]20882201Creek terrace. Phenology: vegetative only.RMRM792944 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1135Beth Ward1996620172U.S.A.WyomingCarbon[location and coordinates withheld]20882201Moist draw. Phenology: vegetative only.RMRM792943 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2710Beth Ward1996717199U.S.A.WyomingCarbonSouth-central Wyoming: sand hills on Dry Cow Creek drainage, ca 5 air mi SW of Doty Mountain; ca 29 air mi SSW of Rawlins.21822201Sand dunes. Phenology: vegetative only.RMRM792942 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3069Beth Ward1996721203U.S.A.WyomingCarbon[location and coordinates withheld]21792475Moist draw. Phenology: vegetative only.RMRM792941 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3084Beth Ward1996721203U.S.A.WyomingCarbon[location and coordinates withheld]21792475Moist draw. Phenology: vegetative only.RMRM792940 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3554Beth Ward199682215U.S.A.WyomingCarbon[location and coordinates withheld]18531855Well established terrace above river. Phenology: vegetative only.RMRM792939 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3555Beth Ward199682215U.S.A.WyomingCarbon[location and coordinates withheld]18531855Well established terrace above river. Phenology: vegetative only.RMRM792932 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James54215Ronald L. Hartman Beth Ward199661153U.S.A.WyomingCarbonSouth-central Wyoming: ca 2 air mi E of Savery.20122073Sagebrush-juniper slopes, south exposure with sandy/rocky soil. Phenology: vegetative only.RMRM798900 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4334Beth Ward1997530150U.S.A.WyomingSweetwaterSouth-Central Wyoming: Green River Basin: greasewood flats and cottonwoods adjacent to Big Island Wash and Green River, ca 26 air mi WNW of Rock Springs.-109.718241.748218901896Cottonwood riverside flat. Phenology: flowering.RMRM798910 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4584Beth Ward199763154U.S.A.WyomingSweetwaterSouth-Central Wyoming: Green River Basin: southwest-facing slopes draining to Sage Creek, ca 0.5 air mi downstream of the confluence of Sage and Trout creeks; ca 22 air mi S of Rock Springs.-109.225841.251520852277Sandy draw bottom. Phenology: vegetative only.RMRM798911 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6601Beth Ward1997716197U.S.A.WyomingSweetwaterSouth-Central Wyoming: Green River Basin: streambank and river bottom adjacent to the Green River on the east side, ca 3/4 air mi SSW of Monument Hill; ca 22 air mi WNW of Rock Springs.-109.64741.68718811884Cottonwood woodland adjacent to river. Phenology: vegetative only.RMRM798899 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6643Beth Ward1997716197U.S.A.WyomingSweetwater[location and coordinates withheld]18651868Gently sloped bank adjacent to river. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7159Jean Wood199685218U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Graves Mountain, ca 16 air mi WNW of Kettle Falls.-118.379248.634212191798Mixed forest, rock outcrops, and east and south slopes of mountaintop. Phenology: vegetative only.RMRM1019007 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James19610B. E. Nelson1990714195U.S.A.WyomingLincolnWyoming/Salt River Ranges: Wyoming Range: Willow Creek Drainage: along lower Hunter Creek, ca 2-3 air mi SW to W of Clause Peak, ca 12-14 air mi SE of Hoback Junction, ca 33 air mi NE of Afton.-110.626443.162221342317Stream banks.RMRM1019008 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James19707B. E. Nelson1990714195U.S.A.WyomingLincolnWyoming/Salt River Ranges: Wyoming Range: Willow Creek Drainage: along Willow Creek between Halfturn and Fullturn creeks, ca 3-3.5 air mi NW of Clause Peak, ca 10-11 air mi SE of Hoback Junction, ca 35-36 air mi NE of Afton.-110.626443.189220732103Stream bank.RMRM1019009 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James19892B. E. Nelson1990818230U.S.A.WyomingTetonWyoming/Salt River Ranges: Wyoming Range: Willow Creek Drainage: along lower Willow Creek between Sourdough and Sob creeks, ca 3.5-4.5 air mi SE of Hoback Junction, ca 15-16 air mi SSE of Jackson.-110.682543.27141920Along creek.RMRM1014780 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James23144B. E. Nelson Russ Nelson1992713195U.S.A.WyomingLincolnWyoming/Salt River Ranges: Salt River Range: along Strawberry Creek at the reservoir and below, ca 4 air mi ENE of Bedford, ca 13.5 air mi NNE of Afton.-110.863342.90172073Stony canyon bottom. Phenology: vegetative only.RMRM1014779 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24454B. E. Nelson Russ Nelson1992817230U.S.A.WyomingLincolnWyoming/Salt River Ranges: Wyoming Range: Porcupine Creek on the slopes of Middle Ridge, ca 1-1.5 air mi E of Greys River; ca 22.5 air mi NNE of Afton.-110.783343.032221642225Roadside. Phenology: vegetative only.RMRM1014778 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24685B. E. Nelson Russ Nelson1992819232U.S.A.WyomingLincolnWyoming/Salt River Ranges: Wyoming Range: along Blind Bull Creek ca 1 air mi E of Greys River Road, ca 19.3 air mi NE of Afton.-110.690642.94392042Grassy overflow channels. Phenology: vegetative only.RMRM1014782 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1319Bruce Embury1992617169U.S.A.WyomingLincolnWyoming/Salt River Ranges: Wyoming Range: Indian Grave Flat, ca 15.5 air mi SE of Alpine Junction.-110.783343.003119391963Old floodplain with hills covered with Pinus contorta and Picea surrounding. Phenology: vegetative only.RMRM1014781 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1340Bruce Embury1992617169U.S.A.WyomingLincolnWyoming/Salt River Ranges: Wyoming Range: N of Moose Flat, ca 19.5 air mi SE of Alpine Junction.-110.743942.973919812286Rock outcrop ridge and associated valley with Pinus flexilis, Populus tremuloides, and Pinus contorta. Phenology: vegetative only.RMRM1019010 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James25495Ronald L. Hartman1990613164U.S.A.WyomingTetonWyoming/Salt River Ranges: Wyoming Range: ca 1 air mi S of Hoback Junction on two track to radio receiver N of Palmer Creek Valley.-110.724743.315318292195Sagebrush slopes with islands of aspen and Douglas fir.RMRM1014777 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James32004Ronald L. Hartman Bruce Embury199259130U.S.A.WyomingLincolnWyoming/Salt River Ranges: Salt River Range: "Star Hill" 1 air mi ENE of Afton center; north side of Swift Creek.-110.905642.7319512439Mostly herb community with scattered juniper, some patches of Acer grandidentatum and Douglas fir and area along road; south exposure. Phenology: vegetative only.RMRM1014776 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James32050Ronald L. Hartman Bruce Embury199259130U.S.A.WyomingLincolnWyoming/Salt River Ranges: Salt River Range: Along Greys River, 1.5 air mi SE of Alpine Junction.-110.998343.14891743Open stream bench with sagebrush, Balsamorhiza, Symphoricarpos and Amelanchier with Douglas fir, spruce, Betula, aspen, and Prunus along edges. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James32175Ronald L. Hartman Bruce Embury1992511132U.S.A.WyomingLincolnWyoming/Salt River Ranges: Gannett Hills : 0.5-1 air mi E of Idaho; 13 air mi N of Border Junction.-111.021442.400619142222South exposure, steep rocky slopes and grassy or sagebrush ridge and wet roadside below. Phenology: fruiting.RMRM296967 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1038B. E. Nelson Linda Nelson1973826238U.S.A.WyomingAlbanyMedicine Bow Mountains: 1.4 mi NW of Wyo Hwy 230 along Lake Owen Creek on the road to Albany, south end of Sheep Mountain.-106.033741.1312317In sandy loam. Abundant. Phenology: vegetative only.RMRM932497 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10553B. E. Nelson1983731212U.S.A.WyomingHot SpringsBighorn Basin: along Gooseberry Creek, ca 1 mi W of Wyo Hwy 120; ca 3.5 air mi E of Dickie (LU Ranch); ca 34.5 air mi NW of Thermopolis.-108.679443.99921676Sagebrush-greasewood-grassy flats along the creek.RMRM563332 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10751B. E. Nelson1984626178U.S.A.WyomingFremontSoutheastern Absarokas: Badland Gulch (or Byrd Draw) on the southeast end of Table Mountain, ca 5 air mi ENE of Dubois.-109.521643.54392378Bottom and slopes of gully. Phenology: vegetative only.RMRM563333 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11326B. E. Nelson198475187U.S.A.WyomingHot SpringsSoutheastern Absarokas: along Cottonwood Creek between the mouth of Negro and Ote creeks, ca 3.5 air mi NE of Squaw Teat Butte; ca 36 air mi WNW of Thermopolis.-108.903643.79582103Riparian woodland. Phenology: vegetative only.RMRM932496 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11417B. E. Nelson198475187U.S.A.WyomingHot SpringsBighorn Basin: along Cottonwood Creek, ca 7 air mi E of Squaw Teat Butte; ca 33 air mi WNW of Thermopolis.-108.842743.76692042Sand-rock bars.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4826Amy J. Roderick1998611162U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: North Platte River S of County Road 408, ca 0.3 air mi E of Pathfinder Dam; ca 9 air mi SW of Alcova townsite.-106.845742.46751737River banks and adjacent granite rocks; Rhus toxicodendron abundant. Phenology: vegetative only.RMRM932495 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James13725B. E. Nelson1987621172U.S.A.WyomingParkBighorn Basin: Polecat Bench along Cottonwood Creek, ca 6 air mi W of Frannie; ca 14 air mi N of Powell.-108.750244.95131432In creek channel.RMRM932494 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James13788B. E. Nelson1987623174U.S.A.WyomingBig HornBighorn Basin: along Five Springs Creek, ca 18.5 air mi E of Lovell.-108.017744.79021493Creek banks.RMRM932493 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14113B. E. Nelson1987630181U.S.A.WyomingParkBighorn Basin: Shearing Pens Reservoir above West Branch Whistle Creek, ca 12 air mi SE of Powell.-108.6630644.600561341Flats near the reservoir with Populus deltiodes var. occidentalis and P. x acuminata.RMRM932492 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14170B. E. Nelson1987630181U.S.A.WyomingBig HornBighorn Basin: along Coon Creek SW of Wyo Hwy 32, ca 9 air mi NW of Emblem, ca 17.5 air mi SW of Lovell.-108.5211144.59941310Stream bottom with scattered cottonwoods.RMRM932491 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14183B. E. Nelson1987630181U.S.A.WyomingBig HornBighorn Basin: along Whistle Creek, ca 6 air mi SW of Byron, ca 12 air mi SW of Lovell.-108.5838944.716111280Wooded stream bottom.RMRM932490 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14932B. E. Nelson Erik Nelson1988529150U.S.A.WyomingBig HornBighorn Basin: along and above St. Joe Canal off Dorsey Creek Road, ca 18 air mi W of Basin, ca 5 air mi SSE of Burlington.-108.4013944.377784400Canal banks.RMRM932489 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James15128B. E. Nelson Erik Nelson1988531152U.S.A.WyomingBig HornBighorn Basin: Snyder Reservoir #4 in Foster Gulch, ca 14 air mi S of Lovell.-108.378944.62811371In and around the reservoir.RMRM932488 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James15204B. E. Nelson Erik Nelson198862154U.S.A.WyomingParkBighorn Basin: along Clarks Fork Yellowstone River, ca 20.5 air mi NW of Powell, ca 1.5 air mi SE of Clark.-109.1072244.90721265Thickets on river bank.RMRM939366 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James15211B. E. Nelson Erik Nelson198862154U.S.A.WyomingParkBeartooth Mountains: near the mouth of Clarks Fork Canyon, ca 25.5 air mi NW of Cody, ca 8.5 air mi SW of Clark.-109.330644.848113651414Sand bars with large boulders. Phenology: vegetative only.RMRM932487 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James15573B. E. Nelson Erik Nelson198869161U.S.A.WyomingParkBighorn Basin: ca 3.5-4 mi NE of Clarks Fork Canyon off Wyo Hwy 292, ca 26 air mi NNW of Cody.-109.252244.87751341Creek and ditch banks.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James16414B. E. Nelson198883216U.S.A.WyomingParkSouthwestern Absarokas: Deer Creek ca 0.5 mi above South Fork Shoshone River, ca 38.5 air mi SW of Cody.-109.616744.15811981Moist bushy woods with cottonwoods and Douglass fir.RMRM607091 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17159B. E. Nelson Jan Pollet1989718199U.S.A.WyomingPlatteLaramie Mountains: Cottonwood Creek above the falls, ca 23 air mi NW of Wheatland; ca 11 air mi ENE of Laramie Peak.-105.253942.31281676Edge of stream. Phenology: vegetative only.RMRM607092 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17245B. E. Nelson Jan Pollet1989719200U.S.A.WyomingPlatte[location and coordinates withheld]1667Plum thicket along stream bottom. Phenology: vegetative only.RMRM738245 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James19285B. E. Nelson199076187U.S.A.WyomingTetonMount Leidy Highland Area: Gray Hills: N of Gros Ventre River, ca 2 air mi NW of west end of Upper Slide Lake, ca 21 air mi ENE of Jackson.-110.378643.60252195Blue spruce forest on floodplain. Phenology: vegetative only.RMRM594313 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20128B. E. Nelson1990823235U.S.A.WyomingTetonWest Slope Wind River Range: Fish Creek/Moccasin Basin area, along South Fork Fish Creek between Buck and Devils Basin Creeks, ca 34 air mi ENE of Jackson.-110.076443.52972439Slope and bench below sandstone-mudstone cliff. Phenology: vegetative only.RMRM594314 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20308B. E. Nelson1990825237U.S.A.WyomingTetonWest Slope Wind River Range: Fish Creek/Moccasin Basin area, along Fish Creek just below confluence of North and South Forks, ca 28.5-29.5 air mi ENE of Jackson.-110.180543.573123172347Clay flats with scattered sagebrush. Phenology: vegetative only.RMRM594315 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20337B. E. Nelson1990825237U.S.A.WyomingTetonWest Slope Wind River Range: Fish Creek/Moccasin Basin area, along South Fork Fish Creek just above confluence with North Fork, ca 30-31 air mi ENE of Jackson.-110.160543.57312347Among low willows in creek bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20806B. E. Nelson Robin Jones199167158U.S.A.WyomingHot SpringsBighorn Basin: ridge between Sand Draw and Cottonwood Creek just W of Wyo Hwy 120, ca 5 air mi NE of Hamilton Dome, ca 18 air mi NW of Thermopolis.-108.483343.809215541615Rough breaks of sandstones, mudstones, shales, coal, carboniferous shales, and associated soils.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James21104B. E. Nelson1991613164U.S.A.WyomingHot SpringsBighorn Basin: along Cottonwood Creek, ca 6 air mi W of Hamilton Dome, ca 25 air mi WNW of Thermopolis.-108.682543.76641737Flats along the stream with narrowleaved cottonwood and sagebrush.RMRM1009794 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2779B. E. Nelson Ronald L. Hartman197963154U.S.A.WyomingCarbonSouth-central Wyoming: ca 7.7 road mi N of Baggs on Wyo Hwy 789, then 5 road mi E, along Deep Creek.-107.583341.13551951In riparian area. Phenology: vegetative only.RMRM352628 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3162B. E. Nelson197976187U.S.A.WyomingBig HornBig Horn Mountains: basin below Five Springs Falls, ca 21 air mi E of Lovell on U.S. Hwy 14 Alt., ca 22 air mi W of Burgess Junction.-107.974444.803892042Rocky slopes along the stream under Douglas fir. Phenology: vegetative only.RMRM352621 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4590B. E. Nelson197985217U.S.A.WyomingBig HornBig Horn Mountains: along Trout Creek in Cookstove Basin, ca 24.5 air mi NE of Lovell, ca 25 air mi NW of Burgess Junction.-107.933944.97942195In a draw. Phenology: vegetative only.RMRM352624 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5194B. E. Nelson198066158U.S.A.WyomingWashakieBig Horn Mountains: near the mouth of Tensleep Canyon, ca 5 air mi NE of Ten Sleep.-107.3586144.070281493Brushy bottom of canyon and along the creek. Phenology: vegetative only.RMRM352630 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5272B. E. Nelson1980610162U.S.A.WyomingBig HornBig Horn Mountains: Cottonwood Canyon, ca 18 air mi E of Lovell.-108.03544.861391920Along the creek and in the canyon bottom. Phenology: vegetative only.RMRM352622 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5687B. E. Nelson1980617169U.S.A.WyomingWashakieBig Horn Mountains: Leigh Canyon off Tensleep Canyon, ca 9 air mi NE of Ten Sleep.-107.2805644.08531859Brushy canyon bottom. Phenology: vegetative only.RMRM352623 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6831B. E. Nelson198086219U.S.A.WyomingJohnsonBig Horn Mountains: in the canyon along the North Fork Crazy Woman Creek, ca 13.5 air mi SW of Buffalo.-106.851444.18642012Bottom of canyon. Phenology: vegetative only.RMRM932505 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8344B. E. Nelson1981719200U.S.A.WyomingHot SpringsBighorn Basin: Wind River Indian Reservation: overflow area along South Fork Owl Creek, ca 25 air mi WNW of Thermopolis; ca 8 air mi SW of Hamilton Dome on Wyo Hwy 174.-108.705343.71431798Around the edges of the ponds.RMRM932504 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8378B. E. Nelson1981719200U.S.A.WyomingHot SpringsBighorn Basin: along South Fork Owl Creek above Anchor Reservoir, ca 32 air mi W of Thermopolis.-108.863643.66531981Sandy soil with cobblestones, cottonwood flats.RMRM932503 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8521B. E. Nelson1981722203U.S.A.WyomingBig HornBighorn Basin: along the Greybull River, ca 24 air mi W of Basin; ca 5 air mi SW of Burlington.-108.522244.42171402Wooded river bottom.RMRM932502 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8575B. E. Nelson1981722203U.S.A.WyomingParkBighorn Basin: along the Greybull River between YU Bench and Sheets Flat, ca 23.5 air mi NE of Meeteetse.-108.6830644.33531524Wooded river bottom.RMRM932501 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8598B. E. Nelson1981723204U.S.A.WyomingHot SpringsBighorn Basin: along the Big Horn River, ca 7 air mi NNE of Thermopolis; ca 1 air mi ENE of Lucerne.-108.146943.73941310Sandy soil, flats along the river.RMRM296964 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James943B. E. Nelson Linda Nelson1973813225U.S.A.WyomingCarbonMedicine Bow Mountains: 4.5 mi S of Wyo Hwy 130 on South Fork Creek Road.-106.464441.28082621In stony clay of disturbed areas with Salix. Frequent. Phenology: vegetative only.RMRM296963 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James948B. E. Nelson Linda Nelson1973813225U.S.A.WyomingCarbonMedicine Bow Mountains: 6.7 mi S of Wyo Hwy 130 on French Creek Road, 2 mi from the North and South French Creek intersection.-106.464441.26642621Gravel at the edge of the road with Circium, Melilotus and Epilobium. Occasional. Phenology: vegetative only.RMRM563331 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9655B. E. Nelson1983621172U.S.A.WyomingParkAbsaroka Mountains: Meeteetse Rim and Meeteetse Creek, ca 2 mi E of Carter Mountain, ca 17.5 air mi S of Cody, ca 12.7 air mi NW of Meeteetse.-109.1258344.26282286Flats along creek. Phenology: vegetative only.RMRM932500 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9767B. E. Nelson Ronald L. Hartman1983621172U.S.A.WyomingParkBighorn Basin: along Spring Creek, ca 2 air mi W of Meeteetse.-108.9047244.160831798RMRM932499 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9842B. E. Nelson Robert S. Kirkpatrick1983623174U.S.A.WyomingHot SpringsBighorn Basin: ca 5.5 air mi W of Hamilton Dome, ca 25 air mi WNW of Thermopolis.-108.682543.7811798Bottom of a draw.RMRM932498 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9862B. E. Nelson Robert S. Kirkpatrick1983623174U.S.A.WyomingHot SpringsBighorn Basin: along Cottonwood Creek, ca 5 air mi W of Hamilton Dome; ca 24.5 air mi WNW of Thermopolis.-108.662243.76641890Stream bottom.RMRM388844 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4404June Haines1985621172U.S.A.WyomingFremontGas Hills Mining District; ca 7.0 air mi ENE of Junction of Wyo Hwy 136 and Ore Road (main road through the Gas Hills Mining District).-107.512842.858420272079Slope east of East creek. Phenology: vegetative only.RMRM388846 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4877June Haines1985718199U.S.A.WyomingFremontWind River Basin: Lake Cameahwait, ca 20 air mi ENE of Riverton, south side of appraoch of Cottonwood Drain to Lake Cameahwait.-108.271343.294314721484Moist area adjacent to creek. Phenology: vegetative only.RMRM388847 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4929June Haines1985718199U.S.A.WyomingFremontWind River Basin: Lake Cameahwait, ca 21 air mi ENE of Riverton, N of Cottonwood Drain and northwest corner of Lake Cameawait.-108.271343.294314691481Moist alkali soil near creek. Phenology: vegetative only.RMRM388848 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4935June Haines1985718199U.S.A.WyomingFremontWind River Basin: Lake Cameahwait, ca 21 air mi ENE of Riverton, N of Cottonwood Drain and northwest corner of Lake Cameawait.-108.271343.294314691481Moist alkali soil near creek. Phenology: vegetative only.RMRM388849 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4977June Haines1985722203U.S.A.WyomingFremontWind River Basin: Boysen Reservoir, ca 23.5 air mi NE of Riverton, west end of Cottonwood Bay.-108.251543.352314391451Edge of alkali beach. Phenology: vegetative only.RMRM388850 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5135June Haines Georgia Haines1985727208U.S.A.WyomingFremontSoutheast edge of Trail Lake at inlet of Torrey Creek, ca 8.2 air mi SSE of Dubois; ca 6.9 mi S on Trail Lake Road.-109.545843.43452256Edge of meadow beside road to head of trail. Phenology: vegetative only.RMRM388851 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5161June Haines Georgia Haines1985727208U.S.A.WyomingFremontSoutheast edge of Trail Lake at inlet of Torrey Creek, ca 8.2 air mi SSE of Dubois; ca 6.9 mi S on Trail Lake Road.-109.545843.43452256Under cottonwoods near creek bank. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5837June Haines198591244U.S.A.WyomingFremontMuddy Creek, ca 9.5 air mi NW Of Shoshoni.-108.271343.27991455Floodplain above creek.RMRM388853 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5847June Haines198591244U.S.A.WyomingFremontMuddy Creek: ca 7.5 air mi NW of Shoshone.-108.231843.27991440Edge of creek floodplain. Phenology: vegetative only.RMRM388854 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6071June Haines Georgia Haines198661152U.S.A.WyomingNatronaSouth Fork Sand Creek, ca 7 1/4 air mi E of Lost Cabin.-107.490443.278918041829Sandy soil in ravine bottom. Phenology: vegetative only.RMRM388855 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6507June Haines Georgia Haines1986615166U.S.A.WyomingFremontFlats, across U.S. Hwy 26 from Paradise Valley Road, ca 6 air mi WNW of Riverton.-108.488343.077216151707Sagebrush grassland in sandy ravine. Phenology: vegetative only.RMRM388856 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6681June Haines1986620171U.S.A.WyomingFremontWind River Basin: Red Canyon Rim, ca 14 air mi SSE of Lander.-108.629842.643918591981Patch of soil in nugget sandstone outcrop. Phenology: vegetative only.RMRM388857 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6795June Haines Georgia Haines1986621172U.S.A.WyomingNatronaSweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction.-107.258542.48218652073Wet canyon bank. Phenology: fruiting.RMRM388858 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6974June Haines Georgia Haines1986727208U.S.A.WyomingFremontGranite Mountain Uplift: edge of Beaver Rim: W of Rock Creek Mountain, ca 17 air mi NNE of Sweetwater Station.-108.062842.775920972152Edge of steep bank. Phenology: vegetative only.RMRM525274 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10355Keith H. Dueholm198074186U.S.A.WyomingSweetwaterGreen River Basin: along Little Dry Creek, ca 11 air mi NNE of Burntfork.-109.914441.17972195Saltbush flats along creek. Phenology: vegetative only.RMRM525275 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10987Keith H. Dueholm1980825238U.S.A.WyomingSweetwaterRock Springs Uplift: ca 11 air mi ENE of Minnie's Gap.-109.225241.04982073Sandy dry creek and banks. Phenology: vegetative only.RMRM525276 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11084Keith H. Dueholm Ronald L. Hartman1981523143U.S.A.WyomingSweetwaterGreen River Basin: ridges and flats between Richards Gap and Tepee Mountain, and along Red Creek.-109.168641.019721032164Deep ravine. Phenology: vegetative only.RMRM525272 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11701Keith H. Dueholm1981628179U.S.A.WyomingFremontWind River Basin: along East Fork Dry Creek, ca 12 air mi NW of Lysite.-107.883943.36441585Along creek, through grease-wood flats. Phenology: vegetative only.RMRM332579 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7151Keith H. Dueholm1979620171U.S.A.WyomingSheridan[location and coordinates withheld]1219Gravelly bench along creek, willow thickets; bench. Phenology: vegetative only.RMRM332578 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8435Keith H. Dueholm1979721202U.S.A.WyomingJohnson[location and coordinates withheld]1402Sandy flats along lake, edges and meadows along creek; meadow. Phenology: vegetative only.RMRM332577 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8581Keith H. Dueholm197982214U.S.A.WyomingJohnsonPowder River Basin: along Clear Creek, ca 2 air mi ENE of Buffalo.-106.649744.360561432Gallery forest and meadows along creek; along floodplain. Phenology: vegetative only.RMRM332576 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8906Keith H. Dueholm197989221U.S.A.WyomingSheridanPowder River Basin: along U.S. Hwy 87, ca 2 road mi NW of Ranchester.-107.224244.92941463Wet ditches, meadows along small stream, tall grass prairie of big bluestem and slough grass, between railroad and wet ditch; highway right-of-way. Phenology: vegetative only.RMRM352625 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9482Keith H. Dueholm Ronald L. Hartman1980526147U.S.A.WyomingBig HornBig Horn Mountains: mouth of Dry Medicine Lodge Canyon (S9 and S16) and ridge above Medicine Lodge Canyon, and along Dry Medicine Lodge Creek (S10 and S15).-107.5491744.321715241737Near stream, limestone ridges, shaly scree slopes above creeks, dry creekbed, with juniper, mountain mahogany, and sagebrush. Phenology: vegetative only.RMRM525273 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9968Keith H. Dueholm1980611163U.S.A.WyomingSweetwater[location and coordinates withheld]2134Gravelly sandstone bench, sagebrush plains and flats, deeply cut gullies; head of gully, from bench. Phenology: vegetative only.RMRM563316 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James165Robert S. Kirkpatrick B. E. Nelson1983623174U.S.A.WyomingHot SpringsAbsaroka Mountains: ca 39 mi WNW of Thermopolis on North Fork of Owl Creek.-108.982143.73462256River banks. Phenology: flowering.RMRM563315 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17Robert S. Kirkpatrick Ruth E. B. Kirkpatrick1983621172U.S.A.WyomingParkAbsaroka Mountains: Francs Fork, ca 4 air mi SW of the Greybull River.-109.243644.057622862439River bottom and adjacent creek banks with aspen, cottonwoods, and limber pine. Phenology: vegetative only.RMRM563322 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1996Robert S. Kirkpatrick1983813225U.S.A.WyomingParkAbsaroka Mountains: ca 18 mi WSW of Meeteetse, along Timber Creek in the vicinity of the Timber Creek Ranger Station.-109.183444.04282317Along the creek in wet areas and adjacent banks; rocky floodplains. Phenology: vegetative only.RMRM563317 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James233Robert S. Kirkpatrick Ruth E. B. Kirkpatrick1983625176U.S.A.WyomingParkAbsaroka Mountains: ca 16 mi W of Meeteetse, along Rawhide Creek.-109.063144.20412317Creek bottoms and adjacent wet areas with Populus tremuloides and P. balsamifera. Phenology: fruiting.RMRM563323 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2686Robert S. Kirkpatrick1984620172U.S.A.WyomingFremontAbsaroka Mountains: ca 9 mi NE of Dubois, ca 2 mi NW of junction of East Fork Wind River and Bear Creek.-109.460243.60522562378Stream gulleys (dry) with Pinus flexilis, Pseudotsuga menziesii and Ribes; moist areas. Phenology: fruiting.RMRM563324 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2815Robert S. Kirkpatrick1984621173U.S.A.WyomingFremontAbsaroka Mountains: ca 8.5 mi NE of Dubois, below Black Mountain along Wiggins Fork River.-109.5243.63382195Riparian woodland - lower montane, bordered with Picea pungens and Populus; sand and gravel bars. Phenology: vegetative only.RMRM566045 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2868Robert S. Kirkpatrick1984623175U.S.A.WyomingFremontAbsaroka Mountains: ca 3 air mi NW of Dubois, west side of Tappan Creek in vicinity of junction with Butler Draw.-109.659443.57622195Riparian areas with Populus augustifolia and Salix lutea; wet areas. Phenology: fruiting.RMRM563318 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James322Robert S. Kirkpatrick Ruth E. B. Kirkpatrick1983627178U.S.A.WyomingParkAbsaroka Mountains: ca 22 mi SW of Meeteetse at junction of Wood River and Jojo Creek.-109.203543.939425002591Wet areas along the river. Phenology: fruiting.RMRM563325 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3281Robert S. Kirkpatrick1984629181U.S.A.WyomingParkAbsaroka Mountains: ca 15 air mi SW of Meeteetse, in the vicinity of Sheep Point.-109.123344.057621032256Sagebrush grasslands with Crysothamnus; on cliffs. Phenology: vegetative only.RMRM563326 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3411Robert S. Kirkpatrick198471183U.S.A.WyomingHot SpringsAbsaroka Mountains: ca 19 air mi SSW of Meeteetse, in the vicinity of the junction of Gooseberry Creek and Middle Gooseberry Creek.-109.02343.8952286Riparian, lower Montane, with Pinus contorta and Picea engelmannii; river banks in forest. Phenology: vegetative only.RMRM563327 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4050Robert S. Kirkpatrick1984715197U.S.A.WyomingFremontAbsaroka Mountains: ca 7 air mi NNE of Dubois, south side of Spring Mountain.-109.579843.633823172591Riparian, lower montane; banks and slopes. Phenology: vegetative only.RMRM563319 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James565Robert S. Kirkpatrick198371182U.S.A.WyomingParkAbsaroka Mountains: ca 33 air mi SW of Cody, at the junction of Boulder Creek and Little Boulder Creek.-109.543544.186320122439Creek banks and adjacent wet areas with Douglas fir and cottonwoods. Phenology: fruiting.RMRM563320 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James764Robert S. Kirkpatrick Ruth E. B. Kirkpatrick198378189U.S.A.WyomingFremontAbsaroka Mountains: ca 16.5 air mi NW of Dubois, along East Fork Du Noir Creek, ca 9 road mi N of U.S. Hwy 26/287.-109.818843.72022286Floodplain and gravel bars along the river (possibly limestone outwash). Phenology: fruiting.RMRM563321 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James891Robert S. Kirkpatrick Ruth E. B. Kirkpatrick198378189U.S.A.WyomingFremontAbsaroka Mountains: ca 10.5 air mi NE of Dubois, along Bear Creek in the vicinity of the East Fork Elk Winter Pasture Headquarters.-109.500143.64822256River bottoms and adjacent areas. Phenology: fruiting.RMRM352631 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10789Ronald L. Hartman197987219U.S.A.WyomingSheridanBig Horn Mountains: Freezeout Stock Trail.-107.39844.892216462073East exposure on limestone and Chugwater Red beds; mostly open with a few groves of Pinus ponderosa. Phenology: vegetative only.RMRM932486 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11117Ronald L. Hartman Keith H. Dueholm1980524145U.S.A.WyomingBig HornBighorn Basin: Wyo Hwy 30, ca 2.2 air mi SSE of Burlington.-108.4216744.421391310Roadside in farmland with irrigation ditch and planted trees. No elevation listed in field notebook.RMRM352627 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11192Ronald L. Hartman Keith H. Dueholm1980524145U.S.A.WyomingBig HornBig Horn Mountains: Medicine Lodge Canyon: west side of Medicine Lodge Creek.-107.528944.33831524Lower canyon slopes and floor. Phenology: fruiting.RMRM352626 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11383Ronald L. Hartman Keith H. Dueholm1980528149U.S.A.WyomingBig HornBig Horn Mountains: John Blue Canyon Road: ca 4.5 mi NNE of U.S. Hwy 14A.-108.1586144.906111524Stream sides. Phenology: fruiting.RMRM930566 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11466Ronald L. Hartman Keith H. Dueholm1980530151U.S.A.WyomingParkBighorn Basin: Sunshine Creek Road, ca 4.5 air mi W of Sunshine Reservoir Dam.-109.145644.069722134Along stream.RMRM932485 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12763Ronald L. Hartman Keith H. Dueholm1981527147U.S.A.WyomingHot SpringsBighorn Basin: intersection of Wyo Hwy 431 and Gooseberry Creek, ca 26 air mi W of Worland.-108.517843.9983Greasewood flats and banks of creek at highway crossing.RMRM563328 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14848Ronald L. Hartman Robert S. and Ruth E. B. Kirkpatrick1983610161U.S.A.WyomingParkAbsaroka Mountains: Corral Creek and adjacent plains.-109.481744.259719512073Rocky stream bottom. Phenology: vegetative only.RMRM563329 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James14889Ronald L. Hartman Robert S. Kirkpatrick1983612163U.S.A.WyomingParkAbsaroka Mountains: Wood River between Brown Mountain and Upper Wood River campgrounds and along Deer Creek.-109.1830643.937822562408River and creek bottoms and adjacent rocky benches and slopes with scattered lodgepole pine, engelmann spruce, and limber pine and big sagebrush. Phenology: vegetative only.RMRM563330 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James15330Ronald L. Hartman Robert S. and Ruth E. B. Kirkpatrick1983619170U.S.A.WyomingParkAbsaroka Mountains: north end Carter Mountain, headwaters of Carter Creek and upper end of Marquette Creek, ca 16 air mi SW of Cody.-109.2061144.33520732652Spruce-fir forest with lodgepole and limber pine, open sagebrush grassland, and aspen and cottonwood thickets along stream. Phenology: fruiting.RMRM388859 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James19962Ronald L. Hartman June Haines1985528148U.S.A.WyomingFremontWind River Basin: Cottonwood Creek, 7 air mi NE of Lysite.-107.603943.349416461707Creek bottom. Phenology: vegetative only.RMRM388860 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James20040Ronald L. Hartman June Haines1985530150U.S.A.WyomingFremontWind River Basin: Burma Road, ca 5.8 air mi N of junction of U.S. 26 and Wyo Hwy 789 in Riverton.-108.389643.106115241585Eroded slopes, sandstone outcrops, and drainage. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James22756Ronald L. Hartman Neil Snow1987618169U.S.A.WyomingTetonSouthwestern Absarokas: Teton Wilderness: Lava Creek trail, ca 10.5 air mi NE of Moran Junction.-110.328643.91123472469Open rocky slope.RMRM918809 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24338Ronald L. Hartman1989617168U.S.A.WyomingAlbanyMedicine Bow Mountains: Sheep Mountain, NW corner.-106.064741.268125602743Rocky slopes and drainage with slowing stream below; Pseudotsuga menzizsii, Pinus contorta, and along the stream Acer and Sambucus.RMRM594312 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James28370Ronald L. Hartman1990825237U.S.A.WyomingTetonWest Slope Wind River Range: South Fork Fish Creek between Hackamore and Bell creeks.-110.120843.558623782393Meadows, gravel bars, and adjacent lodgepole pine forests. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5299Amy J. Roderick1998621172U.S.A.WyomingFremontUpper North Platte and Laramie River Drainages: Granite Mountains: Lankin Gap between Lankin Dome and McIntosh Peak, ca 3 air mi NW of Split Rock.-107.553442.511219812042Drainage through granite boulders; thickets of Physocarpus monogynus and other shrubs. Phenology: vegetative only.RMRM581729 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James31796Ronald L. Hartman Jonathan Hughes1991825237U.S.A.WyomingSubletteWest Slope Wind River Range: Rock Creek, 3-5 mi W of Kendall Guard Station.-110.091943.241124392560Streamside with lodgepole pine, Engelmann spruce, and willows; lower slopes with sandstone, shale, and limestone outcrops. Phenology: vegetative only.RMRM328352 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5660Ronald L. Hartman Keith Dueholm1978528148U.S.A.WyomingCampbellPowder River Basin: Pumpkin Buttes: North Butte.-105.955343.80061844Plains and foothills, steep eroded west slopes with limber pine, caprock, and flat to gently rolling plains on top; just below caprock. Tree to 6 m tall. Phenology: vegetative only.RMRM352629 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9514Ronald L. Hartman Ann Odasz1979626177U.S.A.WyomingSheridanBig Horn Mountains: Bighorn National Forest: Little Bighorn River Canyon, ca 16 air mi W of Parkman.-107.653344.975815241646Open south exposure. Phenology: vegetative only.RMRM352632 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9630Ronald L. Hartman1979628179U.S.A.WyomingJohnsonBig Horn Mountains: North Fork Crazy Woman Creek, ca 13 air mi SW of Buffalo.-106.831444.2011118901951Limestone outcrops and rocky slopes, shaded stream side, and aspen woodlands with adjacent meadows; shaded stream side along road. Phenology: vegetative only.RMRM581730 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11536Walter Fertig1991816228U.S.A.WyomingSubletteWest Slope Wind River Range: north shore of Half Moon Lake, ca 8 air mi NE of Pinedale.-109.730642.93112317Rocky, semi-shady bank of lake in blue spruce/lodgepole pine grove. Phenology: vegetative only.RMRM594311 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3086Walter Fertig199076187U.S.A.WyomingTetonWest Slope Wind River Range: adjacent to Forest Road 30410 and Cottonwood Creek, ca 26 air mi E of Jackson.-110.220343.57312317Sandy gravel creek bank. Phenology: vegetative only.RMRM583975 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5120Walter Fertig199082214U.S.A.WyomingSubletteWest Slope Wind River Range: north shore of New Fork Lakes, ca 17 air mi N of Pinedale.-109.947843.10312384Rocky/sandy beach. Phenology: vegetative only.RMRM581731 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8155Walter Fertig1991625176U.S.A.WyomingSubletteWest Slope Wind River Range: North Fork Trail, ca 0.5 mi N of Boulder Creek, ca 12.5 air mi E of Pinedale.-109.613342.858322562286Mixed aspen/lodgepole pine forest on rocky-sandy soil. Phenology: vegetative only.RMRM600140 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James27336B. E. Nelson1993723204U.S.A.WyomingConverse[location and coordinates withheld]1518Cottonwood woodland with Elaeagnus and Shepherdia, with P. acuminata and P. occidentalis. Phenology: vegetative only.RMRM607093 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James27882B. E. Nelson1993730211U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Walker Creek just N of Manning or County Road 53, ca 20 air mi NE of Douglas.-105.082543.052514291445Floodplain meadows and sparsely wooded stream banks. Phenology: vegetative only.RMRM607094 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James29888B. E. Nelson1993927270U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: along Whalen Canyon Road ca 3/4 mi NE of Hell Gap, ca 14.5 air mi NW of Fort Laramie; ca 33 air mi NW of Torrington.-104.634142.40441493Rocky dry wash. Phenology: vegetative only.RMRM705885 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James30344B. E. Nelson1994519139U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Horseshoe or County Road 59 S of Horseshoe Creek, ca 6 air mi SW of Glendo; ca 27.5 air mi NNW of Wheatland.-105.117942.442614631506In a draw along the road. Phenology: flowering & fruiting.RMRM705884 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James32797B. E. Nelson1994713194U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: upper Gillam Draw on the west side of Pine Ridge, ca 53 air mi NW of Douglas; ca 11.5 air mi SW of Ross.-106.065543.33616761695Meadows along stream bottom. Phenology: vegetative only.RMRM705883 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James34310B. E. Nelson1994823235U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 0.5 mi S of Horseshoe Creek along Horseshoe Creek or County Road 59 ca 15.5 air mi SW of Glendo; ca 27.5 air mi NNW of Wheatland.-105.137542.442614871512Sagebrush-grassland or grassland. Phenology: vegetative only.RMRM607096 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James39445Ronald L. Hartman199371182U.S.A.WyomingPlatte[location and coordinates withheld]14931524Stream bed and sandy plains. Phenology: vegetative only.RMRM607097 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James40006Ronald L. Hartman199374185U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Johnson Reservoir 3, ca 6 air mi NNW of Wheatland.-104.99542.12561371Sandy slopes and lake margin. Phenology: vegetative only.RMRM607098 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James40372Ronald L. Hartman T. W. Nelson199376187U.S.A.WyomingNatronaSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 6 air mi NW of Arminto.-107.326743.24921899Sandy-rocky slope and eroded drainage areas. Phenology: fruiting.RMRM628514 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James45194Ronald L. Hartman Tom Cramer and Charmaine Refsdal1994522142U.S.A.WyomingLincolnGreen River Basin: ca 5 air mi SSE of La Barge along the Green River.-110.153142.20832012Bottom land along river. Phenology: vegetative only.RMRM608884 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1318Thomas Cramer Jane T. Kellett1994628179U.S.A.WyomingLincolnSouthern Salt River Range and Vicinity: Southern Sublette Range: Chalk Creek, ca 7 air mi N of Cokeville.-110.958942.183919512317Hillside seeps, streamside, and sagebrush canyon bottom. Phenology: vegetative only.RMRM628512 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2021Thomas Cramer Jane T. Kellett1994711192U.S.A.WyomingSubletteGreen River Basin: ca 1 air mi NE of Big Sandy.-109.450842.654422802317Dry creekbed with adjacent meadows, willow stands, and sagebrush hillsides. Phenology: vegetative only.RMRM628511 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2491Thomas Cramer1994725206U.S.A.WyomingSubletteGreen River Basin: North Piney Creek and Park Creek, ca 19 air mi WNW of Big Piney.-110.465642.644224082667Streamside meadows and patches of aspen, Douglas fir, spruce, and willows, and open south-facing hillside. Phenology: vegetative only.RMRM628510 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2806Thomas Cramer199484216U.S.A.WyomingLincolnGreen River Basin: Fontenelle Reservoir at Fontenelle Creek entrance, ca 6.5 air mi NW of Fontenelle Dam.-110.14542.09061981Reservoir edge, flats, sagebrush and rabbitbrush, and willow lined dry irrigation ditch. Phenology: vegetative only.RMRM628509 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2898Thomas Cramer199484216U.S.A.WyomingSubletteGreen River Basin: edge of Green River, ca 1 air mi N of La Barge.-110.191342.2742006Riverside mudflats, meadows, and willows. Phenology: vegetative only.RMRM628508 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3159Thomas Cramer199488220U.S.A.WyomingLincolnGreen River Basin: Green River at Slate Creek confluence, ca 1/2 air mi NE of Fontenelle.-110.044241.98831951Riverside beneath shale bluff, surrounding greasewood and rabbitbrush desert. Phenology: vegetative only.RMRM628507 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3188Thomas Cramer199488220U.S.A.WyomingLincolnGreen River Basin: County Road 315, ca 1 air mi SE of Viola.-110.34542.25422157Roadside meadows and willow lined ditches between irrigated fields. Phenology: vegetative only.RMRM628506 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3538Thomas Cramer1994812224U.S.A.WyomingSubletteGreen River Basin: picnic area on Prairie Creek on the north edge of Daniel.-110.068542.86632195Cottonwood picnic area and willowed creekside. Phenology: vegetative only.RMRM628505 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3671Thomas Cramer1994812224U.S.A.WyomingSubletteGreen River Basin: Horse Creek, ca 4.5 air mi SE of Merna.-110.281942.91642280Creekside meadows and willows. Phenology: vegetative only.RMRM628504 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4098Thomas Cramer Ben and Becky Cramer1994819231U.S.A.WyomingFremontGreen River Basin: Sweetwater River, ca 8.5 air mi SW of South Pass City.-108.916442.38422271Riverside meadows, willows, and sagebrush. Phenology: vegetative only.RMRM628503 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4268Thomas Cramer Ben and Becky Cramer1994821233U.S.A.WyomingSubletteGreen River Basin: Green River, ca 9 air mi S of Big Piney.-110.100342.40862027Riverside meadows, sagebrush, and sagebrush bluff. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James44166B. E. Nelson Charity Hall, Brian Jacobs, and Alex Morgan1998627178U.S.A.ColoradoCusterWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Rainbow Trail from Gibson to Swift creeks, ca 2.5 air mi NE of Spread Eagle Peak, ca 6 air mi W of Westcliffe.-105.591838.154927742896Stony meadows, mixed conifer forest, and along a stream. Phenology: vegetative only.RMRM628513 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James440Thomas Cramer1994612163U.S.A.WyomingSubletteGreen River Basin: east bank of Green River at south end of Long Island, ca 9 air mi N of La Barge.-110.100342.37972027River bank, cottonwoods, willows, and mud sloughs. Phenology: vegetative only.RMRM628502 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4795Thomas Cramer1994825237U.S.A.WyomingSubletteGreen River Basin: Green River, ca 6.5 air mi W of Pinedale.-109.988142.872221642195Riverside mudbanks, sloughs, meadows, and willows and sandstone bluffside. Phenology: vegetative only.RMRM628501 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4879Thomas Cramer1994825237U.S.A.WyomingSubletteGreen River Basin: New Fork River, ca 3 air mi WNW of Boulder.-109.761442.765721342164Riverside meadows, willows and cottonwoods, stagnant ponds, irrigation ditchsides, and piney bluffside. Phenology: vegetative only.RMRM628500 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4978Thomas Cramer1994827239U.S.A.WyomingSubletteGreen River Basin: ca 2 air mi S of Boulder.-109.709442.71662121Gravel roadsides and irrigation ditchsides. Phenology: vegetative only.RMRM642299 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7476Thomas Cramer199578189U.S.A.WyomingSubletteGreen River Basin: ca 5 air mi ESE of Big Piney.-110.037942.51322134Steep sandy slope at the base of sandstone cliffs. Phenology: vegetative only.RMRM642327 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9592Thomas Cramer Jane T. Kellett1995727208U.S.A.WyomingSubletteGreen River Basin: New Fork River, ca 6 air mi SW of Boulder.-109.783242.673321032118Gravel sagebrush bluffside above river. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1416Brian Elliott1998612163U.S.A.ColoradoCostilla[location and coordinates withheld]2408Riparian. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1479Brian Elliott1998612163U.S.A.ColoradoSaguache[location and coordinates withheld]25602713Prairie, pinyon, and riparian. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1555Brian Elliott1998612163U.S.A.ColoradoChaffeeWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sawatch Range: on U.S. Hwy 285, ca 3 mi S of Poncha Springs.-106.106438.47422500Pinyon-oak. Phenology: fruiting.RMRM568728 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11071Hollis Marriott1989713194U.S.A.WyomingCrookBlack Hills: Sand Creek; ca 0.5 air mi E of confluence with Corral Creek.-104.102744.40451341Along dry, rocky creekbed with Cornus stolonifera. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1661Brian Elliott1998613164U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on County Road 1A, ca 0.5 mi from south edge of Cotopaxi.-105.684538.36222012Pinyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1962Brian Elliott1998616167U.S.A.ColoradoLas Animas[location and coordinates withheld]1920Riparian; pinyon-juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2109Brian Elliott1998618169U.S.A.ColoradoChaffeeWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sawatch Range: on County Road 202 from Mears Junction, S of Poncha Springs.-106.148338.40362713North-facing slopes with ponderosa pine and Engelmann spruce. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2298Brian Elliott1998620171U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: San Isabel National Forest: Spring Creek Trailhead, on Forest Road 414, S of Cuchara.-105.110437.37472743Engelmann spruce. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2353Brian Elliott1998620171U.S.A.ColoradoHuerfano[location and coordinates withheld]2560Quercus gambellii. Phenology: vegetative only.RMRM615292 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7095Robert D. Dorn1996725207U.S.A.WyomingCrookOgden Creek.-104.406444.46491920Stream bank with Betula, Corylus. Phenology: vegetative only.RMRM380983 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James17684Ronald L. Hartman198479191U.S.A.WyomingCrookBlack Hills: Sand Creek, 11-12 air mi ESE of Sundance.-104.122844.438891310Canyon bottom and lower slopes; stream bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2815Brian Elliott1998627178U.S.A.ColoradoLas Animas[location and coordinates withheld]2439Riparian with beaver marsh; ponderosa pine. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2872Brian Elliott1998627178U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest boundary: N on Gardener Road or County Road 63.4, W of Walsenburg.-105.200437.88922408Pinus ponderosa. Phenology: vegetative only.RMRM823170 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10378Robert D. Dorn200869161U.S.A.WyomingFremontJunction of Wyo Hwys 132 and 287 NW of Lander.-108.79666642.9433331676Roadside ditch with Melilotus and Juncus. Tree 3m high. Phenology: vegetative only.RMUSFS883752 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74030B. E. Nelson2008610162U.S.A.MontanaCarbonPryor Mountains: Custer National Forest: along Sage Creek from the forest-Crow Indian Reservation boundary to the E, ca 19 air mi ESE of Bridger.-108.570445.216916521661Bushy creek bank. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74168B. E. Nelson2008613165U.S.A.MontanaCarbonBighorn Basin: Gypsum Creek and vicinity S of Helt or BLM Road 1016, ca 28.5 air mi SE of Bridger.-108.46445.05415731609Arroyo bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74586B. E. Nelson2008622174U.S.A.MontanaCarbonPryor Mountains: Bear Canyon and vicinity, ca 25 air mi SE of Bridger.-108.52245.08816281646Bushy, weedy canyon bottom. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James76397B. E. Nelson2008815228U.S.A.MontanaCarbonBighorn Basin: along a tributary of South Fork Bridger Creek just W of Pryor Mountain Road, ca 8 air mi SE of Bridger.-108.815545.20712621323Along stream through redbeds and adjacent wet to dry meadows dominated by Glycyrrhiza. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James399Brian Elliott1998527147U.S.A.ColoradoAlamosaWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Zapata Falls Recreation Area from Colo Hwy 150.-105.567837.60932743Pinyon-juniper and riparian; Abies-Pseudotsuga. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James491Brian Elliott1998527147U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 1.5 mi E on Gulch or County Road 28, N of Westcliffe.-105.561438.34232164By a small spring; pinyon-juniper, lower end for ponderosa; riparian. Phenology: fruiting.RMRM905934 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4216Ben Legler2007612163U.S.A.New MexicoColfaxVermejo Park Ranch: at mouth of Bernal Creek where it joins the Vermejo River at its passage through The Little Wall; 8 air mi NW of Vermejo Park.-105.126944436.949166672504Riparian Populus angustifolia stand with open understory of Ribes cereum, Poa pratensis, Pedicularis procera, Thermopsis montana. Mature trees, trunks to about 80 cm diameter; bark gray-brown, furrowed, crowns rounded; locally common. Phenology: vegetative only.RMRM905933 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4470Ben Legler2007617168U.S.A.New MexicoColfaxVermejo Park Ranch: in Dillon Canyon 0.2 mi downstream (SE of) mouth of Seeley Canyon and 2.5 air mi W of Raton.-104.484472236.898472222042Dry creek bottom with gravelly and sandy steam bed, with scattered Populus angustifolia, Salix exigua, Robinia neomexicana. Common trees to ca. 20 meters tall. Phenology: vegetative only.RMRM905932 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4863Ben Legler2007623174U.S.A.New MexicoColfaxVermejo Park Ranch: on eastern edge of old strip mine in bottom of Road Canyon just upstream from its junction with York Canyon, 3.5 air mi SE of Casa Grande.-104.920277836.872222222265Small pond on edge of strip mine, with Populus angustifolia, Salix exigua. Trees to ca. 15 meters tall predating strip mine, with numerous saplings nearby. Phenology: vegetative only.RMRM905931 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5029Ben Legler2007626177U.S.A.ColoradoLas AnimasVermejo Park Ranch: in Lorencito Canyon 0.47 mi N of mouth of Cottonwood Canyon; 1.35 air mi N of Colorado and 21 air mi SW of Trinidad.-104.838333337.011944442270Gently sloping grassland in canyon bottom, with numerous non-native weeds; soil mesic to dry. Large trees scattered along creek banks. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James530Brian Elliott1998527147U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 2.6 mi on County Road 15, S of Florence.-105.151138.29661829By creek on roadside; prairie-pinyon-juniper transition; riparian. Phenology: vegetative only.RMRM905930 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5262Ben Legler2007629180U.S.A.New MexicoColfaxVermejo Park Ranch: along Canadian River 0.13 mi S of (donwstream from) mouth of Jones Canyon; 9 air mi W of Raton.-104.606138936.909277782125Small flowing river with large dry gravel bar and narrow strip of marshy shoreline dominated by Carex spp., Equisetum laevigatum, grasses. Scattered large trees along river course. Phenology: vegetative only.RMRM905929 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5494Ben Legler200773184U.S.A.New MexicoColfaxVermejo Park Ranch: along creek in Caliente Canyon 0.2 air mi upstream from junction with Mercer Canyon.-104.802536.814166672152Small flowing creek surrounded by wet Juncus marsh below dike for manmade pond. Small tree ca. 10 meters tall; uncommon; mixed with Populus deltoides but no hybrids seen. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James54Brian Elliott1998525145U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Greenhorn Road just S of Colo Hwy 165 over Greenhorn Creek.-104.852737.93318171829By bridge; oak-pinyon and riparian. Phenology: vegetative only.RMRM905928 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7066Ben Legler200783215U.S.A.ColoradoLas AnimasVermejo Park Ranch: steep bluff on west side of Long Canyon diagonally opposite from mouth of Joe Baker Canyon; 0.65 air mi N of New Mexico and 16 air mi SW of Raton.-104.702537.0032139Steep eroding slope of sandstone and fine coal scree, with scattered shrubby Quercus spp., Cercocarpus montanus, Pinus edulis and P. ponderosa. Several large trees along stream banks at base of slope. Phenology: vegetative only.RMRM905927 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7827Ben Legler2007816228U.S.A.New MexicoColfaxVermejo Park Ranch: along banks of Ponil Creek 0.7 air mi downstream (SE of) junction of North Ponil Creek and South Ponil Creek; 5.3 air mi NW of Cimarron.-104.956388936.579972222027Sandy creek bottoms dominated by dense growth of Symphoricarpos occidentalis, Conyza canadensis, and Bromus, with scattered Alnus incana and Juniperus scopulorum. Trees scattered along creek bottoms; trunks to about 60 cm diameter, bark gray-brown, vertically furrowed. Phenology: vegetative only.RMRM905890 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8013Ben Legler2008519140U.S.A.New MexicoColfaxVermejo Park Ranch: north side of Leandro Creek 1.5 air mi W of its junction with Vermejo River; 6.1 air mi NW of Vermejo Park.-105.10159336.9286272445Dry grassy flats with scattered Pinus ponderosa groves. Several large trees scattered along stream banks. Specimen GPS: 36.927605, -105.106529. Phenology: flowering.RMRM905926 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8226Ben Legler2008528149U.S.A.New MexicoColfaxVermejo Park Ranch: along middle Ponil Creek 6.2 air mi NE of summit of Baldy Mountain and 15.2 air mi NW of Cimarron.-105.10916136.6665232334Moist creek bottoms, with Populus angustifolia, Salix, Alnus incana, Thermopsis, tall dense grass cover. Trees to ca. 15 meters tall, scattered along creek. Specimen GPS: 36.666889, -105.110306. Phenology: vegetative only.RMRM905889 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8432Ben Legler200864156U.S.A.New MexicoColfaxVermejo Park Ranch: in Salyers Canyon 5.5 air mi NNW of its junction with the Vermejo River and 6.4 air mi SE of Vermejo Park.-104.88258436.85122274Dry grassy canyon bottom with slopes dominated by Pinus edulis. Several large trees along stream channel. Photographed. Specimen GPS: 36.85347, -104.882408. Phenology: fruiting.RMRM905925 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8456Ben Legler200865157U.S.A.New MexicoColfaxVermejo Park Ranch: in lower part of Prairie Crow Canyon 1.0 air mi W of Koehler.-104.64083936.7418172039Dry, east facing rocky slope dominated by Quercus grisea and Quercus ×undulata, with Q. gambelii at base along dry stream channel. Trees scattered along stream bed; frequent. Specimen GPS: 36.741196, -104.647171. Phenology: fruiting.RMRM905924 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8496Ben Legler200866158U.S.A.New MexicoColfaxVermejo Park Ranch: along Cerrososo Creek 2.1 air mi N of mouth of Plaza Canyon; 8.5 air mi NNE of Cimarron.-104.88890136.6354222124Small flowing stream with marshy banks, with Eleocharis, Juncus balticus, and Rorippa nasturtium-aquaticum. Trees scattered along creek. Specimen GPS: 36.635059, -104.888771. Phenology: fruiting.RMRM905923 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8509Ben Legler200866158U.S.A.New MexicoColfaxVermejo Park Ranch: along Cerrososo Creek 0.2 air mi W of mouth of Bat Canyon; 5.8 air mi NNE of Cimarron.-104.86481536.5850942028Deep canyon with steep sandstone walls and small flowing creek lined by Populus angustifolia, P. deltoides, and P. ×acuminata. Frequent trees along creek, growing with P. deltoides and P. ×acuminata. Specimen GPS: 36.584797, -104.864456. Phenology: fruiting.RMRM905922 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8634Ben Legler2008610162U.S.A.New MexicoColfaxVermejo Park Ranch: in Valdez Canyon 5.1 air mi NW of mouth of Valdez Canyon and 9.9 air mi SE of Van Bremmer Park.-104.93870536.7477152292Barely flowing stream under Populus angustifolia and Juniperus scopulorum; stream margins with Poa pratensis and Equisetum laevigatum. Large trees; bark brown-gray, deeply furrowed; locally common. Specimen GPS: 36.747738, -104.938675. Phenology: vegetative only.RMRM905921 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9359Ben Legler200875187U.S.A.ColoradoLas AnimasVermejo Park Ranch: in Bear Canyon between its mouth at Colorow Canyon and mouth of Rock Canyon; 13.4 air mi SW of Trinidad.-104.6319237.0080722171Dry stream channel in canyon bottom with areas of saturated soil, bordered by grassy flats and slopes of Pinus ponderosa. Single tree ca. 15 meters tall in canyon bottom. Specimen GPS: 37.004879, -104.63063. Phenology: vegetative only.RMRM905920 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9591Ben Legler2008711193U.S.A.New MexicoColfaxVermejo Park Ranch: on east side of Little Vermejo Creek 0.2 air mi S of Colorado.-105.1350436.9919472629Gallery forest of Populus angustifolia; with understory of Thermopsis, Symphoricarpos, and grasses; moist soil. Large trees, trunks 30-80 cm diameter; common. Specimen GPS: 36.992474, -105.135254. Phenology: vegetative only.RMRM905919 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9970Ben Legler2008719201U.S.A.New MexicoColfaxVermejo Park Ranch: flats on south side of the Cimarron River 2.6 air mi W of Cimarron.-104.96277636.5134162010Dry shortgrass prairie, gravelly soil; with Cylindropuntia imbricata, Krascheninnikovia lanata, and Gutierrezia sarothrae. Trees to ca. 15 meters tall; common. Specimen GPS: 36.509121, -104.935104. Phenology: vegetative only.RMUSFS862788 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James71149B. E. Nelson Emily Elliott, Brian Elliott2007524144U.S.A.WyomingParkBeartooth Mountains: Shoshone National Forest: Clarks Fork Canyon along Morrison Trail, ca 24-25 air mi NNW of Cody.-109.348644.82471414Decomposed granite and cobbles. Phenology: vegetative only.RMUSFS866456 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James71818B. E. Nelson Emily Elliott200762153U.S.A.MontanaCarbonBeartooth Mountains: Custer National Forest: along Robertson Draw at the intersection of Forest roads 2008 and 2009 ca 1-1.5 air mi N of Wyoming, ca 11.5 air mi S of Red Lodge.-109.257845.019119262012Along small stream. Phenology: flowering & fruiting.RMRM939353 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James812Emily Elliott Brian Elliott200764155U.S.A.MontanaCarbonCooney Reservoir along Red Lodge Creeek Road, on south side of reservoir W of dam, ca 18 air mi N of Red Lodge.-109.203745.44441295Slopes around reservoir with sandy soils in mixed Artemisia cana and annual weedy forbs/grasses. Phenology: vegetative only.RMRM939354 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1084Emily Elliott Brian Elliott200768159U.S.A.MontanaParkAbsoraka Mountains: ca 3.5 air mi N of National Forest, ca 4.5 air mi E of Livingston.-110.513845.66111448Distrubed area used as dump and shooting range. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James838Brian Elliott Kenneth Elliott199864155U.S.A.ColoradoSaguache[location and coordinates withheld]2463Riparian and pinyon-juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James879Brian Elliott Kenneth Elliott199864155U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Cottonwood Spring, on County Road 46AA, NW of Saguache.-106.166838.14112530Riparian and prairie. Phenology: fruiting.RMRM939355 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4280Emily Elliott Brian Elliott200783215U.S.A.MontanaParkAbsaroka Range: between I-90 and the Yellowstone River in McAdows Canyon, ca 14.5 air mi ENE of Livingston.-110.262145.70144280Disturbed roadside, railroad tracks and river bank. Phenology: vegetative only.RMUSFS862789 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1623Jack C. Kademian1988630182U.S.A.WyomingParkBeartooth Mountains: Shoshone National Forest: Clarks Fork Canyon, Falls Creek drainage to Bridal Veil Falls, ca 11.5 air mi SE of Beartooth Pass, ca 25.5-26 air mi NW of Cody.-109.335444.837614021920Streamside with cottonwood heading up canyon. Phenology: vegetative only.RMRM939360 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James85785Ronald L. Hartman2007617168U.S.A.MontanaCarbon0.5 air mi S of Columbus on Mont Hwy 78 at Itch-kep-pe Park along the Yellowstone River.-109.252145.62841088Along river and throughout park. Phenology: fruiting.RMRM939361 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James85802Ronald L. Hartman2007617168U.S.A.MontanaCarbon0.5 air mi S of Columbus on Mont Hwy 78 at Itch-kep-pe Park along the Yellowstone River.-109.252145.62841088Along river and throughout park. Phenology: vegetative only.RMRM939358 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James38161B. E. Nelson Ronald L. Hartman1996612164U.S.A.WyomingParkBeartooth Mountains: between Line Creek and Montana at the foot of Beartooth Plateau, ca 9.5-10.5 air mi NW of Clark; ca 35.5-36 air mi NNW of Cody-109.279545.003117982103Bottoms along the creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1631bCharity Hall Brian Jacobs and Alex Morgan1998629180U.S.A.ColoradoChaffeeWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Isabel National Forest: ca 1.2 road mi on County Road 240 from U.S. Hwy 50.-106.196838.558826212713Along stream and dry ponderosa pine forest slopes; soil fine-grained to gravelly; ponderosa, Rosa, Salix, and aspen. Phenology: vegetative only.RMRM925559 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4756Laura E. Lukas2007817229U.S.A.WyomingAlbanyMedicine Bow Mountains: Jelm Mountain, ca 1 mi E of New Jelm, ca 2 air mi SE of Woods Landing.-105.997541.06422410Dry gulch.RMRM925552 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James85317Ronald L. Hartman200762153U.S.A.WyomingAlbanyMedicine Bow Mountains: west base of Sheep Mountain.-106.059641.249325002559Phenology: vegetative only.RMRM925554 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74943B. E. Nelson2008710192U.S.A.WyomingAlbany[location and coordinates withheld]2326Meadows among willow thickets and cottonwood in the river bottom. Phenology: vegetative only.RMRM927908 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James76031B. E. Nelson200885218U.S.A.WyomingCarbonSierra Madre: Miner Creek and canyons and ridge to the NW, ca 1/4 below confluence of North and South forks, ca 4 air mi SSW of Encampment.-106.821541.15323322487Rocky slopes along the stream. Phenology: vegetative only.RMRM925558 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5199Laura E. Lukas2008620172U.S.A.WyomingCarbon[location and coordinates withheld]2207In sagebrush along creek. Phenology: vegetative only.RMRM925557 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5200Laura E. Lukas2008620172U.S.A.WyomingCarbon[location and coordinates withheld]2207In sagebrush along creek. Phenology: fruiting.RMRM925556 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5301Laura E. Lukas2008623175U.S.A.WyomingCarbonMedicine Bow Mountains: Bow River Work Center area, near intersection of Forest Road 101 (Sand Lake Road) and Forest Road 261 (Cedar Pass Road), ca 10 air mi SW of Arlington; ca 22 air mi NNE of Saratoga.-106.388641.5252531Sagebrush meadow uphill from wooded creek. Phenology: vegetative only.RMRM925555 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6005Laura E. Lukas Patricia E. Lukas200879191U.S.A.WyomingCarbonMedicine Bow Mountains: Platte River Wilderness: surrounding confluence of Devils Gate Creek and Douglas Creek, ca 4 air mi SE of Trail 506 Trailhead and Pike Pole Campground, ca 17 air mi SSW of Centennial.-106.368241.11424442446Sandy meadow along creek, sagebrush and Salix common. Phenology: vegetative only.RMRM925551 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8035Laura E. Lukas2008813226U.S.A.WyomingAlbanyMedicine Bow Mountains: south end of Sheep Mountain, near Forest Road 311 (Fox Creek Road), ca 26 air mi SW of Laramie; ca 1 air mi N of Woods Landing.-106.031641.13092267Area between wooded creek and sagebrush hills, Populus overstory. Phenology: vegetative only.RMRM927912 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8834Laura E. Lukas200969160U.S.A.WyomingCarbonMedicine Bow Mountains: along Brush Creek and Wyo Hwy 130, 1 mi W of forest boundary, ca 14 air mi SE of Saratoga and ca 4 air mi NW of Ryan Park.-106.569841.35932359Just uphill from cottonwood-shaded creek, near road. Phenology: vegetative only.RMRM927911 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8975Laura E. Lukas2009615166U.S.A.WyomingCarbonSaratoga Valley: South Fork Lake Creek and Goetze Creek area, 2 mi W of forest Boundary and ca 7 air mi ENE of Saratoga.-106.693141.489721522156Creek in sagebrush steppe, Populus overstory. Phenology: vegetative only.RMRM927910 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9186Laura E. Lukas2009623174U.S.A.WyomingCarbonMedicine Bow Mountains: W of Prospect Mountain and Deerhorn Point, along and SE of BLM Road 3423, ca 18 air mi SE of Encampment and ca 8 air mi N of Colorado.-106.485241.11522434In and around creek in sagebrush hills. Phenology: fruiting.RMRM927909 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9787Laura E. Lukas200977188U.S.A.WyomingCarbonMedicine Bow Mountains: along French Creek, just S and SW of intersection of County Road 660 (French/Holmes Road) and BLM Road 3404, ca 33 air mi ESE of Encampment.-106.523441.2112361Along creek, sagebrush hills. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James726Charity Hall Brian Jacobs and Alex Morgan1998615166U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 1 road mi on Gulch Road from Colo Hwy 69.-105.579138.34232149Granite and metamorphic chunks; dominant species: pinyon, oak, and juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James517Rick McNeill2008624176U.S.A.MontanaWheatlandLewis and Clark National Forest: Little Belt Mountains: Forest Road 8804, near Haymaker Campground, ca 20 air mi W of Judith Gap.-110.1309246.62851680Open meadow; west aspect, 35% slope; sandstone bedrock. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James991Charity Hall Brian Jacobs and Alex Morgan1998617168U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: San Isabel National Forest: ca 3.4 road mi on Forest 101 from U.S. Hwy 50.-105.961638.474224082484Along small stream and slopes; dominant species: oak, Acer, Salix, and juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2271Rick McNeill2008716198U.S.A.MontanaLewis and Clark[location and coordinates withheld]1422Rocky flood plain with pockets of vegetation; river flowing E to W, 0-5% slope; mixed rock. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James87168Ronald L. Hartman Rick McNeill2008613165U.S.A.MontanaChouteauLewis and Clark National Forest: Highwood Mountains: Highwood Creek at north edge of Highwood Mountains, ca 12 air mi SE of Highwood.-110.584847.470113841695South exposed slope, rocky ridge with rock outcrops. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James88116Ronald L. Hartman2008810223U.S.A.MontanaFergusLewis and Clark National Forest: Big Snowy Mountains: Half Moon Canyon.-109.27146.824317071729Along trail in lower canyon, with cottonwood. Phenology: vegetative only.RMRM939362 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4663Emily Elliott2008617169U.S.A.MontanaParkBetween I-90 exit 343 (Mission) and Mission Creek, ca 8 air mi NE of Livingston.-110.400645.71281341Roadside disturbed area dominated by introduced grasses and creek banks. Phenology: vegetative only.RMRM939363 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4841Emily Elliott Brian Elliott2008619171U.S.A.MontanaParkParadise Valley: in the Carbella Recreation Site on the Yellowstone River, ca 15 air mi NW of Gardiner.-110.901345.21111524Riparian area along river. Phenology: vegetative only.RMRM939364 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4908Emily Elliott2008622174U.S.A.MontanaGallatinBozeman, along Bozeman Creek between the public library and the Sunset Hills Cemetary in park.-111.027545.67711463Along stream in shaded area and disturbed areas in abandoned lot. Phenology: vegetative only.RMRM939365 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5211Emily Elliott Brian Elliott2008626178U.S.A.MontanaParkParadise Valley: U.S. Hwy 89 and the Yellowstone River at Grey Owl Boat ramp and fishing access, ca 19 air mi SSW of Livingston.-110.704245.39771463Riparian area in flooded flood plain. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James60715Ronald L. Hartman Melanie Arnett, Charity Hall, Brian Jacobs, and Alex Morgan199861152U.S.A.ColoradoCusterWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountain Valley: Brush Hollow Road (County Road 260) along Brush Hollow Creek.-105.346838.18125302591Metamorphic outcrops, roadside, and stream bottom. Phenology: vegetative only.RMRM866457 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6755Emily Elliott2008729211U.S.A.MontanaSweet GrassBeartooth Mountains: Custer National Forest: Forest Road 2140 between Stillwater River and Picket Pin Creek, around forest boundary, ca 28 air mi S of Big Timber.-109.935645.428618291914Dry sagebrush meadow with scattered clumps of Pseudotsuga menziesii and Pinus flexilis; area disturbed by heavey recreation and cattle use. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James60812Ronald L. Hartman Melanie Arnett, Charity Hall, Brian Jacobs, and Alex Morgan199861152U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountain Valley: Bear Gulch at Grape Creek.-105.349638.328220732088Rocky slopes with oak and pinyon and area along creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6589Rick McNeill2009715196U.S.A.MontanaCascadeLittle Belt Mountains: Smith River, mouth of Trout Creek and up Trout Creek ca 0.5 mi, 31 air mi S of Great Falls.-111.274347.05441183Dry creek bed, between limestone cliffs running west to east. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James61487Ronald L. Hartman1998617168U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Raton Mesa: I-25 at confluence of Gallinas and Raton creeks to 1 air mi to N.-104.52537.058320122103Stream side and pinyon-juniper-oak woodland. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James61768Ronald L. Hartman1998620171U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 3 air mi SSW of La Veta on Colo Hwy 12 at Cuchuras River crossing.-105.020637.449122562271Grassy areas and rock outcrop. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James62883Ronald L. Hartman Craig Freeman1998810222U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: Greenhorn Trail.-104.999137.918424392743Coniferous forest. Phenology: vegetative only.RMRM939359 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James54501Ronald L. Hartman1996610162U.S.A.WyomingParkBeartooth Mountains: canyon of the Clarks Fork Yellowstone River.-109.355744.799113711463Lower slopes along river to end of road. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James63865Ronald L. Hartman1998819231U.S.A.ColoradoChaffeeWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: ca 1-2 air mi S of Salida (city center).-105.997838.516521952378Pinyon-oak shrubland with grassy openings. Phenology: vegetative only.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James79277B. E. Nelson Michael K. Kirkpatrick201057127U.S.A.ColoradoGarfieldNorthwest corner of Grass Mesa, E of Helmer Gulch, ca 1 air mi SSW of Rifle.-107.797739.50551692Stony valley bottom with juniper. Phenology: flowering.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James112Michael K. Kirkpatrick201059129U.S.A.ColoradoGarfieldColorado River Valley: S of the Colorado River on the north flanks of High Mesa, ca 1.5-2 air mi SSW of Parachute.-108.065539.417315971792Dry creek and slopes with scattered oak and willow. Phenology: fruiting.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James235Michael K. Kirkpatrick2010513133U.S.A.ColoradoGarfieldPorcupine Creek, ca 7 air mi SW of Rifle.-107.858439.45721905Riparian corridor and benches. Phenology: flowering.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James960Michael K. Kirkpatrick201063154U.S.A.ColoradoMesaWhite River National Forest: along West Divide Creek drainage and uplands, ca 16-20 air mi SSE of Silt.-107.563439.31222312463Main stream channel through spruce-cottonwood forest and openings. Phenology: vegetative only.RMUSFS898807 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1443Michael K. Kirkpatrick2010615166U.S.A.ColoradoEagleUSFS-administered "tree farm" along the north shore of the Roaring Fork River, ca 1 air mi WSW of El Jebel.-107.105639.394519511966Riparian wetlands, woodlands, and dry meadows. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1577Michael K. Kirkpatrick2010618169U.S.A.ColoradoPitkinWhite River National Forest: west side of Crystal River, ca 0.5 air mi SW of Placita and 1 air mi ESE of McClure Pass.-107.268639.12722372262Wet meadow and riparian woodland. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James81044B. E. Nelson2010911254U.S.A.MontanaPhillipsLittle Rocky Mountains: along South Big Horn Creek NE of Damon Hill, ca 5-5.5 air mi SE of Hays; ca 46 air mi SW of Malta.-108.623647.934912921341Rocky gravel bars and flats in the creek bed. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5910Brian Elliott1999523143U.S.A.ColoradoLas Animas[location and coordinates withheld]1920West of interstate to the top of low ridges in pinyon-juniper woodlands. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5936Brian Elliott1999523143U.S.A.ColoradoLas Animas[location and coordinates withheld]1829Pinyon-juniper with Quercus. Phenology: flowering & fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6009Brian Elliott1999524144U.S.A.ColoradoCusterWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: east ca 4 mi on Forest Road 306, on Colo Hwy 165 N of San Isabel.-105.090638.13722378Riparian. Phenology: flowering & fruiting.RMRM840918 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James282Bethany Lewis2007616167U.S.A.WyomingAlbanyLaramie Plains: Hutton Lake National Wildlife Refuge: ca 10 air mi SW of Laramie.-105.71526741.1698172210Greasewood/grassland uplands; near open water. Phenology: vegetative only.RMRM840919 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James330Bethany Lewis2007617168U.S.A.ColoradoJacksonNorth Park: Arapaho National Wildlife Refuge: ca 5 1/2 air mi SW of Walden.-106.3615540.6645172490Irrigated meadow; developed area. Phenology: fruiting.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6609Brian Elliott Elizabeth Mark199966157U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: along Newlin Creek from Florence Mountain Park at Newlin Trailhead on County Road 15, S of Florence.-105.187938.26772286Picea engelmannii/Pseudotsuga menziesii. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6892Amy J. Roderick1998719200U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Seminoe Mountains: drainage W of BLM Road 3108, ca 1.8 air mi NE of Kortes Dam.-106.851242.18071981Cottonwood, chokecherry, and Rocky Mountain maple lined creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7399Brian Elliott Elizabeth Mark1999618169U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: along old railroad bed between Cordova Plaza and Weston.-104.838337.12722073Riparian, railroad right-of-way. Phenology: flowering & fruiting.RMRM248249 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James55237W. E. Booth1955625176U.S.A.MontanaGolden ValleySouth of Levina.In lowland along stream. Phenology: fruiting.RMUSFS444374 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. JamesJES-103Jack E. Schmautz1953716197U.S.A.MontanaMadisonBeaverhead National Forest: Vigilante Experiment Station.1875Level ground; clay loam soil; woodland with Ppr, Salix. Common. Phenology: fruiting.RMUSFS444372 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James550Wilfred W. White194867159U.S.A.MontanaMeagherLewis and Clark National Forest: Hwy 6 and Cottonwood Creek; 1.5 mi N of junction of Hwy 6 and Hwy 89.Gentle slope; rocky soil; streams and gullies; in open grassland. Occasional. Phenology: vegetative only.RMRM300200 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2648Robert D. Dorn197668160U.S.A.MontanaGallatin7 mi W of Bozeman.1432Gravel pit. Phenology: fruiting.RMRM300199 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2645Robert D. Dorn197668160U.S.A.MontanaGallatin7 mi W of Bozeman.1432Gravel pit. Phenology: flowering.RMRM248251 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James195510J. C. Wright195566157U.S.A.MontanaYellowstoneLaurel, Clarks Fork River.Banks of river. Phenology: flowering.RMRM210528 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2717W. E. Booth1948620172U.S.A.MontanaPowder River10 mi N of Broadus.Along streams. Phenology: fruiting.RMUSFS444375 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James775R. Trevor Ferguson192179190U.S.A.MontanaBeartooth National Forest: Pryor District: Sage Creek.1829North slope; moist, shallow clay loam soil; with Ribes, Salix, Acer, Rosa. Abundant. Phenology: vegetative only.RMUSFS444373 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James569Wilfred W. White194783215U.S.A.MontanaParkGallatin National Forest: Hwy 89 at Suce Creek, ca 7 mi by road S of Livingston.Gentle slope; open grassland with few trees along creek. Phenology: flowering.RMRM89746 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James461aJ. W. Blankinship1906510130U.S.A.MontanaGallatinBozeman.Along streams. Phenology: flowering.RMRM300201 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2647Robert D. Dorn197668160U.S.A.MontanaGallatin7 mi W of Bozeman.1432Gravel pit. Phenology: fruiting.RMRM310198 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James527L. M. Umbach1903726207U.S.A.MontanaGlacierMidvale.Along streams. Phenology: vegetative only.RMRM89747 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James461J. W. Blankinship1905104277U.S.A.MontanaGallatinBozeman: Gallatin River.1402Along streams. Phenology: vegetative only.RMRM73404 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. Jamess.n.Wyatt W. Jones190157127U.S.A.MontanaGallatinBozeman.Also collected May 25, 1901. Phenology: flowering.RMRM355542 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5876Robert W. Lichvar198369160U.S.A.MontanaCarbonNorth fork of Trail Creek.1204Cottonwood bottom. Phenology: vegetative only.RMRM366848 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3030Peter Lesica1984617169U.S.A.MontanaCarbonPryor Mountains: bottom of Crooked Creek Canyon, ca 10 mi N of Cowley, WY.1432With Acer glabrum and Cornus stolonifera. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8830aBrian Elliott Elizabeth Mark1999710191U.S.A.ColoradoCostillaWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: at Mountain Home Reservoir, ca 3 mi SE of Ft. Garland.-105.391737.39582530Lakeside and Pinyon-Juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7147Amy J. Roderick1998723204U.S.A.WyomingFremontUpper North Platte and Laramie River Drainages: West Sage Hen Rocks and Creek, ca 16 air mi NE of Jeffrey City.-107.573142.62771993Creek lined with cottonwood, willow, and birch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James82860B. E. Nelson2011717198U.S.A.ColoradoPitkinElk Mountains: White River National Forest: along Avalanche Creek from the trailhead at the end of Forest Road 310 SE to the wilderness boundary, ca 4 air mi NNE of Redstone; ca 11-12 air mi S of Carbondale.-107.197939.230422252256Brushy canyon bottom with conifers, aspen, and cottonwood, and streambank. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James83570B. E. Nelson2011815227U.S.A.ColoradoGrandBlue River Valley: between the river and the north end of Lawson Ridge E of Colo Hwy 9, ca 4 air mi S of Kremmling.-106.370840.006122742292Clay slopes and bottom of gully in sagebrush. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James83662B. E. Nelson2011816228U.S.A.ColoradoSummitGore Range: Arapaho National Forest: south base of Green Mountain along County Road 30, above Green Mountain Reservoir, ca 22 air mi NE of Silverthorne at I-70.-106.320139.87982439At the base of a barren, gray-black loose shale slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James83868B. E. Nelson2011822234U.S.A.ColoradoSummitWilliams Fork Mountains: Arapaho National Forest: lower end of Miller Gulch above Green Mountain Reservoir and Colo Hwy 9, ca 18 air mi NNW of Silverthorne at I-70.-106.236839.854124232500Canyon bottom near the stream. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5146Michael K. Kirkpatrick2011526146U.S.A.ColoradoMesaBattlement Mesa: creek below Bull Basin from waterfall to confluence with Little Alkali Creek, ca 2 air mi NW of Housetop Mountain and ca 7 air mi SSW of Parachute.-108.079539.34517071890Shale and clay slopes above riparian corridor, dominated by juniper, oak, and mountain shrubs. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5825Michael K. Kirkpatrick201169160U.S.A.ColoradoPitkinWhite River National Forest: Perham Creek, between Assignation Ridge and the Crystal River, ca 9 air mi S of Carbondale.-107.254639.266321952378Forested riparian corridor with aspen, spruce, and Douglas-fir. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5838Michael K. Kirkpatrick2011613164U.S.A.ColoradoPitkinWhite River National Forest: Braderich Creek upward from its confluence with Coal Creek, ca 2-3 air mi WNW of Redstone and ca 14 air mi SSW of Carbondale in the Crystal River drainage.-107.279639.19222347Riparian corridor and benches with narrowleaf cottonwood, Douglas-fir, and aspen. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6008Michael K. Kirkpatrick2011614165U.S.A.ColoradoEagleHills above the West Fork Cottonwood Creek ca 1 air mi above the confluence with the main creek, ca 4 air mi S of Greenhorn Mountain and ca 3 air mi NE of Gypsum.-106.896739.688821642225Sandy slopes and bottomlands with pinyon-juniper and sagebrush in openings. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6290Michael K. Kirkpatrick2011619170U.S.A.ColoradoEagleGore Range: Cottonwood Creek drainage, less than 0.5 air mi above confluence with Sheephorn Creek along County Road 11B, ca 8 air mi NE of State Bridge.-106.516239.91772225Riparian corridor with cottonwood, alder, and willow. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7072Michael K. Kirkpatrick201173184U.S.A.ColoradoPitkinElk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: East Creek Trail, ca 1-2 air mi E of Redstone and ca 15 air mi S of Carbondale.-107.213439.175923782682Riparian corridor and seepy slopes in spruce-fir forest with alder and mountain-ash. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7184Michael K. Kirkpatrick201175186U.S.A.ColoradoPitkinElk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: East Snowmass Creek trail, ca 3 air mi WSW of Snowmass Village and ca 9 air mi W of Aspen.-106.987139.185425602835Moist aspen slopes, rocky outcrops, and edges of coniferous forest. Phenology: vegetative only.RMRM816205 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James709Cynthia Villa200263154U.S.A.ColoradoGrandBlue Valley Ranch: S of Stretch Ribbon Bridge.2787Cottonwood corridor above riparian area in stony loam with east aspect. Phenology: vegetative only.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James71818B. E. Nelson Emily Elliott200762153U.S.A.MontanaCarbonBeartooth Mountains: Custer National Forest: along Robertson Draw at the intersection of Forest roads 2008 and 2009 ca 1-1.5 air mi N of Wyoming, ca 11.5 air mi S of Red Lodge.-109.257845.019119262012Along small stream. Phenology: flowering & fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James74030B. E. Nelson2008610162U.S.A.MontanaCarbonPryor Mountains: Custer National Forest: along Sage Creek from the forest-Crow Indian Reservation boundary to the E, ca 19 air mi ESE of Bridger.-108.570445.216916521661Bushy creek bank. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James64657Ronald L. Hartman1999624175U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: County Road 634 along Ute Log Gulch, ca 10 air mi NNW of Gardner.-105.23737.918425602591Ponderosa pine forest and streamside. Phenology: vegetative only.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James779Emma E. Freeland2012615167U.S.A.MontanaMadisonSnowcrest Range: Lewis Creek and Badger Creek, ca 20 air mi S of Virginia City, ca 0.5-2.5 air mi W of Vigilante Station.-111.964845.01671865Moist area along a creek with Salix, Prunus, and occasional Pseudotsuga. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James65010Ronald L. Hartman Fengjie Sun199977188U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: Squirrel Creek from trailhead to branch to Pueblo Mountain Park.-104.999138.064320122317Wooded stream bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7635Lori E. Brummer2012515136U.S.A.ColoradoDeltaGrand Mesa: south slopes off of Alkaili Basin Road, ca 8 air mi NNW of Delta.-108.146638.868421462451Riparian area in pinyon/juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7802Lori E. Brummer2012519140U.S.A.ColoradoMontroseUncompahgre Plateau: Roubideau Creek, above junction with Potter Canyon to 2 trail mi upstream, ca 11 1/4 air mi SW of Delta.-108.179238.619115971646Riparian area in desert canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7805Lori E. Brummer2012519140U.S.A.ColoradoMontroseUncompahgre Plateau: Roubideau Creek, above junction with Potter Canyon to 2 trail mi upstream, ca 11 1/4 air mi SW of Delta.-108.179238.619115971646Riparian area in desert canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8171Lori E. Brummer2012529150U.S.A.ColoradoMesaBattlement Mesa: Grand Mesa National Forest: Road Gulch, hillside SE of Mud Hill on Forest Trail 625, ca 15 air mi S of Silt.-107.6755139.3259324392500Wet area/pond in mountain shrub community. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8296Lori E. Brummer201262154U.S.A.ColoradoMontroseUncompahgre Plateau: Dry Creek SE of Transfer Road, ca 10.5 air mi ENE of Montrose.-108.0649638.533961725Riparian area in salt desert shrub. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8352Lori E. Brummer201262154U.S.A.ColoradoMontroseUncompahgre Plateau: mesa SE of Cushman Creek, off of Tabeguache Trail, ca 14.5 air mi ESE of Montrose.-108.113138.462221032195Canyon seep on sandstone mesa. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8408Lori E. Brummer201265157U.S.A.ColoradoDeltaWest Elk Mountains: Gunnison National Forest: Smith Fork, old site of Smith Fork Campground, ca 2.5 road mi E of Needle Rock on Needle Rock Road, ca 13 air mi ESE of Hotchkiss.-107.508638.72892164Riparian area in mixed mountain shrub community. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8450Lori E. Brummer201265157U.S.A.ColoradoDeltaOak Mesa: south slopes off BLM road from northeast end of Coal Road, at Jay Creek crossing, ca 6.5 air mi NNE of Hotchkiss.-107.7044238.8866922252292Riparian area in pinyon/juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8617aLori E. Brummer2012610162U.S.A.ColoradoMesaUncompahgre Plateau: Dominguez Canyon: between 3 and 4 trail mi down canyon from Dominguez Campground, ca 23 air mi WSW of Delta.-108.500638.760920672085Small riparian area along seep/creek in pinyon/juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8767Lori E. Brummer2012614166U.S.A.ColoradoDeltaNorth Fork Valley: Gunnison National Forest: Hubbard Creek Trail N of Juanita Junction, ca 8.5 air mi NNW of Paonia.-107.527638.99619802121Below cliff in understory of mixed mountain shrub community. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8962Lori E. Brummer2012615167U.S.A.ColoradoGunnisonGrand Mesa: east side: Gunnison National Forest: Jones Park and Clear Fork Trail from junction with Baldy Creek, ca 8.5 air mi NE of Paonia.-107.440439.182423932500Riparian area in aspen. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James9658Lori E. Brummer201279191U.S.A.ColoradoOurayUncompahgre Basin: Pleasant Valley, County Road 24, just N of Colo Hwy 62, ca 5 1/4 air mi WSW of Ridgway.-107.850638.13223272373Along roadside through irrigated meadow and along irrigation ditch. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James10942Lori E. Brummer Linda Deeds and Kim Hansen201284217U.S.A.ColoradoDeltaUncompahgre Plateau: Escalante Canyon, seep area before Cottonwood Springs, ca 15 1/4 air mi SW of Delta.-108.330838.67161723Seep area in sandstone canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11672Lori E. Brummer2012910254U.S.A.ColoradoDeltaGunnison Gorge National Conservation Area: Gunnison River, ca 1 mi SW of the confluence of the North Fork and Gunnison rivers, ca 7 air mi WSW of Hotchkiss.-107.852838.77811552Along river in desert shrub community. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11847Lori E. Brummer2012913257U.S.A.ColoradoOuraySan Juan Mountains: Uncompahgre National Forest: Dexter Creek; near Bachelor Mine, off of Forest Road 871 and Dexter Creek or Forest Trail 205, ca 3 air mi NE of Ouray.-107.666638.061626212825Along montane riparian area. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11848Lori E. Brummer2012913257U.S.A.ColoradoOuraySan Juan Mountains: Uncompahgre National Forest: Dexter Creek; near Bachelor Mine, off of Forest Road 871 and Dexter Creek or Forest Trail 205, ca 3 air mi NE of Ouray.-107.666638.061626212825Along montane riparian area. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11851Lori E. Brummer2012913257U.S.A.ColoradoOurayUncompahgre Basin: Billy Creek State Wildlife Area, junction of Brook Creek and Billy Creek, ca 15 1/4 air mi SE of Montrose.-107.72238.2932147Riparian area in pinyon/juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11877Lori E. Brummer Gay Austin2012914258U.S.A.ColoradoDeltaUncompahgre Plateau: Escalante Canyon: Cottonwood Spring, ca 9 3/4 road mi up the canyon from the Gunnison River, ca 15.5 air mi SW of Delta.-108.342538.66891803Along intermittent stream in sandstone canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12119Lori E. Brummer2012919263U.S.A.ColoradoMontroseUncompahgre Plateau: Roubideau Canyon; middle canyon just NW of Camel Back, ca 17 air mi NW of Montrose.-108.182338.561117071719Low elevation riparian area. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James66608Ronald L. Hartman1999823235U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Spring Gulch.-105.925538.474224392682Streamside and slope. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5444Joshua J. Irwin Craig Scott2011623174U.S.AIdahoCusterChallis National Forest: White Knob Mountains: along Alder Creek between Table Mountain and South Fork Alder Creek, 6.4 air mi S of Mackay.-113.6144143.822591976<25 plants estimated in mesic soil within shrub-steppe vegetation, 12 degree slope, N aspect, trachyandesite geology. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5546Joshua J. Irwin Craig Scott2011626177U.S.AIdahoCusterChallis National Forest: Salmon River Mountains: along trail just across the Middle Fork Salmon River from the Dagger Falls Campground, 27.5 air mi NW of Stanley.-115.2834644.528381738<25 plants estimated in xeric coarse textured soil within woody riparian vegetation, 9 degree slope, SW aspect, granodiorite geology. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James89846Ronald L. Hartman Joshua J. Irwin2010525145U.S.A.IdahoLemhiSalmon River Mountains: 2.5 mi W of Shoup Bridge, 6.5 mi SSW of the intersection of Ida Hwy 28 and U.S. Hwy 93 in Salmon.-113.943745.081712131576Steep slope to rock outcrop then rolling hills with grasses and sagebrush. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James92032Ronald L. Hartman2011816228U.S.A.IdahoCusterChallis National Forest: Southern Salmon River Mountains: ca 7.8 road mi N of Ida Hwy 75 on Squaw Creek Road, along road for ca 0.5 mi, ca 17 air mi SW of Challis.-114.4715544.3290831817Rock outcrops and roadside. Phenology: spores.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5348Emma E. Freeland2013611162U.S.A.MontanaBeaverheadBeaverhead Valley: Henneberry Gulch, ca 13 air mi SW of Dillon, ca 4 air mi NW of Gallagher Mountain.-112.791145.05041737Dry, disturbed stream bank. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5542Emma E. Freeland2013615166U.S.A.MontanaMadisonMadison Range: Taylor Hilgard Unit of Lee Metcalf Wilderness: North Fork Bear Creek and Cameron Creek, ca 3-5 air mi NW of Sphinx Mountain, ca 14-15 air mi SE of Ennis.-111.551645.17671942Picea forest along a creek. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5779Emma E. Freeland2013618169U.S.A.MontanaMadisonTobacco Root Mountains: Harris Creek, ca 14-15 air mi WNW of Ennis, ca 6 air mi SW of South Baldy Mountain.-112.019845.40981975Dry meadow. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James7711Emma E. Freeland201381213U.S.A.MontanaMadisonMadison Valley: Eight Mile Ford Fishing Access site, ca 4 air mi S of Ennis, along County Road 36.-111.755745.29891536Cottonwood community along a river. Phenology: vegetative only.RMRM690696 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2184C. H. Refsdal1994727208U.S.A.WyomingSweetwaterBasins and Mountains of Southwest Wyoming: Linwood Canyon, ca 3 air mi NE of Manila, UT; junction of Henrys Fork and Wyo Hwy 530.-109.666141.00231920Creek drainage in arid desert. Phenology: vegetative only.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James5838Michael K. Kirkpatrick2011613164U.S.A.ColoradoPitkinWhite River National Forest: Braderich Creek upward from its confluence with Coal Creek, ca 2-3 air mi WNW of Redstone and ca 14 air mi SSW of Carbondale in the Crystal River drainage.-107.279639.19222347Riparian corridor and benches with narrowleaf cottonwood, Douglas-fir, and aspen. Phenology: vegetative only.RMUSFS Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James25598Ronald L. Hartman1990622173U.S.A.ColoradoRouttFlat Tops/White River Plateau: above Williams Fork, ca 13 air mi SSW of Hayden.-107.31840.31920732195Sandstone and shale outcrop with oak, serviceberry, and chokecherry and roadside; roadside.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. JamesWY050-29R. Grinnan R. Stern2012620172U.S.A.WyomingFremont[location and coordinates withheld]1894Wind River formation; loam; on pasture, stream, river; slope 5 deg; aspect east; with sagebrush grasses, weeds, Salix melanopsis, Maianthemum stellatum. Phenology: fruiting.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2387C. H. Refsdal Duane Atwood and Lucy Jordan199482214U.S.A.UtahDaggettSouthwestern Wyoming and Adjacent Utah: Grasshopper Island in the Green River, ca 11 air mi E of Dutch John.-109.290240.90881664Shoreline. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2454C. H. Refsdal Duane Atwood and Lucy Jordan199483215U.S.A.UtahUintahSouthwestern Wyoming and Adjacent Utah: ca 17 air mi SE of Dutch John; 4.9 mi W of Colorado on both sides of Crouse Creek Road.-109.09940.807318751890Steep creek side, Acer. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James206Lori E. Brummer201065156U.S.A.ColoradoMontroseTwentyfive Mile Mesa: Potter Canyon, end of Roubideau Canyon Road, ca 5.7 road mi SW from junction with Twentyfive Mesa Road, ca 10.5 air mi SW of Delta.-108.19638.639515851780Riparian area in sandstone canyon. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2519C. H. Refsdal Duane Atwood and Lucy Jordan199483215U.S.A.UtahDaggettSouthwestern Wyoming and Adjacent Utah: Browns Park: ca 12 air mi E of Dutch John, 0.5 mi west of Browns Park Road on the east side of the Green River.-109.156440.89431655Muddy flat on river edge. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1262Lori E. Brummer2010728209U.S.A.ColoradoOurayUncompahgre National Forest: area between Cow Creek and Green Mountain trailheads, where County Road 12 ends at Cow Creek, ca 32 air mi SSW of Montrose.-107.6090538.09412530Mixed coniferous forest with scattered aspen. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James1525Lori E. Brummer201084216U.S.A.ColoradoMontroseUncompaghre Plateau: Escalante Creek, ca 17.5 air mi WSW of Delta.-108.356438.659417071829Seep area in narrow sandstone canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2009Lori E. Brummer2010813225U.S.A.ColoradoMontroseUncompaghre Plateau: 25 Mesa: Monitor Creek, ca 20.5 air mi SW of Delta.-108.317538.530521342256Along creek in pinyon/juniper. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2098Lori E. Brummer2010816228U.S.A.ColoradoMesaUncompaghre Plateau: Unaweep Canyon, lower East Creek, ca 25 3/4 air mi NW of Delta.-108.462938.96814291469Riparian area along creek in sandstone canyon. Phenology: vegetative only.RMRM690700 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2746C. H. Refsdal1994811223U.S.A.WyomingSweetwaterBasins and Mountains of Southwest Wyoming: 3/4 mi E of Green River on FMC road along the Green River by the bridge.-109.433941.49471849River bottom, river rock, willows, grasses. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3333Lori E. Brummer2011529149U.S.A.ColoradoMontroseUncompahgre Plateau: Freshet Draw, W of Happy Canyon, ca 6 air mi SSW of Montrose.-107.899938.395919141929Bottom of draw in sandstone canyon. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4135Lori E. Brummer2011617168U.S.A.ColoradoMesaGrand Mesa: Big Creek near Old Man Mountain, along County Road 121, just above and below the forest boundary, ca 36 air mi ENE of Grand Junction.-107.934839.147725002591Riparian area in aspen/oak community. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4219Lori E. Brummer2011619170U.S.A.ColoradoMontroseUncompahgre Plateau: Spring Creek Canyon from BLM boundary to West Fork Spring Creek, ca 14 air mi SW of Montrose.-107.951738.391219692365Along small creek in oak. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4431Lori E. Brummer2011623174U.S.A.ColoradoGunnisonGunnison Basin: BLM Lands E of Paonia Reservoir off of County Road 2, ca 44 air mi NE of Delta.-107.323338.9742620912195Riparian area in mixed mountain shrub/oak community. Phenology: vegetative only.RMRM690701 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2940C. H. Refsdal199493246U.S.A.WyomingLincoln[location and coordinates withheld]2070Upland. Phenology: vegetative only.RMRM690702 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3045C. H. Refsdal199493246U.S.A.WyomingLincolnBasins and Mountains of Southwest Wyoming: ca 1.0 air mi E of Fontenelle Store; 0.9 mi E on county road on southeast side of the Green River.-110.044241.974219391945Cottonwoods, river bottom. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6975Lori E. Brummer2011814226U.S.A.ColoradoMontroseUncompahgre Plateau: small canyon between Spring Creek and Dave Wood Road, ca 2/3 road mi SW of Dave Wood Road on BLM road, ca 9.5 air mi SW of Montrose.-107.964238.355622132237Along intermittent stream in shallow sandstone canyon. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3094C. H. Refsdal199494247U.S.A.UtahDaggettNorth Slope Uinta Mountains: Flaming Gorge National Recreation Area: Sheep Creek, ca 4 air mi S of Manila; junction of Forest Road 218 and Utah Hwy 44 on west side of Forest Road.-109.729940.92331902Upland, sagebrush, and scattered junipers. Phenology: vegetative only.RMRM925553 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James24338Ronald L. Hartman1989617168U.S.A.WyomingAlbanyMedicine Bow Mountains: Sheep Mountain, NW corner.-106.064741.268125602743Rocky slopes and drainage with slowing stream below; Pseudotsuga menzizsii, Pinus contorta, and along the stream Acer and Sambucus.RMRM930045 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4150Bonnie Heidel2015618169U.S.A.WyomingJohnsonBig Horn Mountains: North Fork Powder River Wilderness Study Area: east side of river, ca 27.5 mi NW of Kaycee.-106.9015643.938231926Gallery forest in narrow, broken bands; with Phalaris arundinacea.RMRM690704 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James45289Ronald L. Hartman Tom Cramer and Charmaine Refsdal1994524144U.S.A.WyomingSweetwaterBasins and Mountains of Southwest Wyoming: north end of Black Mountain and Pine Spring area, ca 26 air mi S of Green River.-109.76141.194720732408Sagebrush slopes, cushion communities, conglomerate rim rock, wind swept mesa top, and spring area. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James45326Ronald L. Hartman Tom Cramer and Charmaine Refsdal1994524144U.S.A.UtahDaggettNorth Slope Uinta Mountains: Ashley National Forest: Dripping Spring, ca 2 air mi SE of Dutch John.-109.347540.923318291890Pinyon-juniper with some ponderosa pine and stream bottoms. Phenology: vegetative only.RMRM937762 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James11746Robert D. Dorn2016622174U.S.A.WyomingConverseMedicine Bow National Forest: along Pool Creek, ca 5 mi SW of Esterbrook.-105.43542.3666671981Stream bank, with Carex, Geranium. Tree 4" DBH. Phenology: fruiting.RMRM957592 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James779Carlos A. Popolizio Nancy E. Hastings, Rosalie M. Smith, Donald L. Hazlett1996614166U.S.A.WyomingPlatteCamp Guernsey: Deadhorse Canyon, ca 0.2 km E of Broom Creek, ca 2 km NW of Emigrant Hill.1400Canyon bottom surrounded by steep cliffs; narrow canyon with juniper woodland; rock to rocky loam; bottom of canyon; with Juniperus scopulorum, Poa pratensis, Cerastium arvense, Symphoricarpos, Solidago sp. Locally common; erect tree; to 5 m tall. Phenology: vegetative only.RMRM958464 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12043Robert D. Dorn2018621172U.S.A.WyomingCarbonSaratoga Veterans Park along the North Platte River.-106.80333341.4533332073River bank with Salix and Elaeagnus. Tree 8 in. DBH. Phenology: vegetative only.RMRM958459 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James12050Robert D. Dorn2018621172U.S.A.WyomingCarbonBattle Creek ca 10 mi ENE of Savery.-107.17333341.0852195Wet meadow with Salix boothii. Tree 15 in. DBH. Phenology: vegetative only.RMRM957703 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James212Nancy E. Hastings P. Block2007524144U.S.A.WyomingPlatteCamp Guernsey: Osburn Ranch parcel; east end of transect ca 3.9 km NE of Guernsey Reservoir, ca 570 m due W of Range Control.1427Rolling with walls; narrow canyon with mixed grass shrubland/occasional pine and juniper; silty loam and rock outcrops; with Rhus aromatica, Toxicodendron rydbergii, Clematis ligustifolia, Schizachyrium scoparium, Prunus virginiana, Juniperus scopulorum, Cheilanthes feei. Local; shrub or small tree; 2.2 m tall. Phenology: flowering.RMRM981601 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4577Bonnie Heidel201862153U.S.A.WyomingAlbanyWest slope Laramie Range: ca 1.5 mi NE of U.S. Hwy 30, ca 3.7 air mi E of downtown Laramie.-105.523941.31582277Shallow excavated wetland, moist soil; with Phleum pratense, Hordeum jubatum, Salix exigua. 1 m tall. Phenology: vegetative only.RMRM607095 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James38805Ronald L. Hartman1993627178U.S.A.WyomingConverseSouthern Powder River Basin/Southeast Plains: Southern Powder River Basin: Wyoming Game and Fish Access area along the North Platte River in vicinity of Carey, ca 10 air mi E of Glenrock.-105.663842.85841518River margin and sandy flats and slopes. Phenology: vegetative only.RMRM688206 Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6143C. H. Refsdal1995729210U.S.A.WyomingUinta[location and coordinates withheld]25672603Creekside, sandy soils, conifer/aspens. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6319C. H. Refsdal1995731212U.S.A.UtahUintahSouthwestern Wyoming and Adjacent Utah: Browns Park: Sears Canyon, ca 12.5 air mi SE of Dutch John.-109.175540.836318901957Red sandy soils, sandstone cliffs, juniper/pinyon, pine, cottonwood. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James6367C. H. Refsdal Barbara McNight199581213U.S.A.UtahDaggettSouthwestern Wyoming and Adjacent Utah: Browns Park: Green River, ca 13 air mi ESE of Dutch John; 1.8 mi S of junction of Jarvie Ranch/Browns Park roads on west side Browns Park Road.-109.137340.879816461670River's edge, river rock, clay soils. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8078Amy J. Roderick1998812224U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Seminoe Mountains: Morgan and Marking Pen creeks on County Road 351, ca 2 air mi W of Seminoe Dam.-106.948642.16632073Along creek; thickets of Salix, Betula, Prunus, Acer, and Cornus. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8140Amy J. Roderick1998813225U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Miracle Mile on North Platte River, ca 1.5 air mi NNE of Kortes Dam.-106.870742.19521829Along river; willow, cottonwood, and limber pine common. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James50255Ronald L. Hartman Timothy W. Chumley1995519139U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: ca 6 air mi WNW of Canon City.-105.261738.556418292042Pinyon-juniper woodland, streamside, and sandstone outcrops. Phenology: vegetative only.RMRM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James8232Amy J. Roderick1998815227U.S.A.WyomingNatrona[location and coordinates withheld]20302073Along creek; birch, chokecherry, willow, limber pine, and snowberry common. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James50491Ronald L. Hartman Timothy W. Chumley1995523143U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: quarry 0.5 air mi NW of Wellsville.-105.907438.516522562560Pinyon-juniper slopes, sandstone, and limestone outcrops. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James50509Ronald L. Hartman Timothy W. Chumley1995523143U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Alkali Gulch and gypsum mine, between North Fork South Platte River and the Arkansas, ca 3 air mi E of Howard.-105.777338.431320732378Pinyon-juniper with sandstone, limestone, igneous extrusives, and metamorphics. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James2483Timothy W. Chumley1995725206U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: along the north face of Little Crampton Mountain and W along Cottonwood Creek, ca 1.5 air mi W of Colo Hwy 9, ca 13.5 air mi WNW of Canon City.-105.448838.568820732347On a gravel bar on the creek bank. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James3008Timothy W. Chumley199588220U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Rampart Range: along Jackson Creek, ca 1 air mi N of intersection of Forest Road 300 or Rampart Range Road and Forest Road 507 or Jackson Creek Road, ca 17 air mi N of Woodland Park.-105.101239.251125002621On the banks of the stream. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James546Timothy W. Chumley199562153U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Arkansas Mountain off Spruce Mountain or County Road 157A, ca 1 air mi W of County Road 12; ca 4 air mi N of Cotopaxi.-105.721638.417524392804Roadside along the gulch. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James703Timothy W. Chumley1995612163U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Rice Gulch between BLM Deer Park Trail Road 5826 or County Road 347 and County Road 69, along a tributary of Wilson Creek, ca 11.7 air mi SW of Cripple Creek.-105.337538.62624082579On banks of stream in open grassy drainage. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James989Timothy W. Chumley1995619170U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Rampart Range: off Colo Hwy 67 along Horse Creek, ca 1/2 air mi SE of Deckers; ca 20.1 air mi NNW of Woodland Park.-105.21339.251119632109Roadside, along the creek. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4033Timothy W. Chumley1996625177U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Gardner Peak/Crampton Mountain: on slopes, ridges and peaks and along Tallahassee Creek, off County Road 21A ca 15.2 air mi ENE of Canon City.-105.485838.540323782722Along the banks of the stream. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4511Timothy W. Chumley1996714196U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: East Gulch: along East Gulch and surrounding slopes and ridges, at end of County Road 27, ca 5.2 air mi N of town of Texas Creek. C1/2-105.578538.468921952560Along a small, shaded running strean in pinyon-juniper with occasional ponderosa pine and Douglas fir. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4703Timothy W. Chumley1996717199U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Platte Canyon: along the South Platte River and adjacent canyons and ridges ca 4 air mi NE of town of South Platte.-105.119939.453817372125In rocky-gravelly gulch bottom with Quercus gambelli and Toxicodendron rydbergii. Phenology: vegetative only.RM Populus angustifoliaphysical specimenSalicaceaePopulusangustifoliaE. James4957Timothy W. Chumley1996722204U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Beaver Creek State Wildlife Area: along Beaver Creek and adjacent meadows, ridges and gulches off County Road 132 at terminus, ca 15 air mi NE of Canon City.-105.003538.570818531914On the sandy-gravelly banks of the creek. Phenology: vegetative only.36003,1,0true