Chrysothamnus viscidiflorus var. viscidiflorus (1996)
ASTERACEAE
Chrysothamnus viscidiflorus (Hook.) Nutt. var. viscidiflorus
U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Thirtynine Mile Volcanic Range: along an unnamed tributary of Threemile Creek and surrounding uplands off Forest Road 108 ca 1.5 rd mi E of intersection with Colo Hwy 9, ca 9.2 air mi NW of Guffey.
Open grassland on volcanic soils. Phenology: flowering.
Accession: (unaccessioned)

Chrysothamnus viscidiflorus var. viscidiflorus (1997)
ASTERACEAE
Chrysothamnus viscidiflorus (Hook.) Nutt. var. viscidiflorus
U.S.A., Wyoming, Park County: Northern Absaroka Area: Bobcat Creek Trail.
Sagebrush slopes. Phenology: flowering.
Accession: USFS 854097, Barcode: USFS0037761

Chrysothamnus viscidiflorus var. viscidiflorus (1997)
ASTERACEAE
Chrysothamnus viscidiflorus (Hook.) Nutt. var. viscidiflorus
U.S.A., Wyoming, Park County: Northern Absaroka Area: Bobcat Creek Trail.
Douglas fir and limber pine slopes with openings of sagebrush and streamsides. Phenology: flowering.
Accession: USFS 854096, Barcode: USFS0037760

U.S.A., Wyoming, Park County: Northern Absaroka Area: road S of the North Fork Shoshone River, ca 0.5 air mi E of Wapiti.
Elev. 5600 ft.
Roadside and slope to river. Phenology: flowering.
Accession: USFS 854095, Barcode: USFS0037759

U.S.A., Wyoming, Park County: Northern Absaroka Area: Buffalo Bill Reservoir, ca 10 air mi ESE of Wapiti.
Elev. 5500 ft.
Area of water fluxuation and roadside. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern Absaroka Area: Buffalo Bill Reservoir, ca 12 air mi ESE of Wapiti.
Elev. 5500 ft.
Lakeside, roadside, and along irrigation canal. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern Absaroka Area: ca 3 air mi SE of Cedar Mountain summit.
Clay badlands. Phenology: flowering.

U.S.A., Wyoming, Park County: [location and coordinates withheld]
Roadside in clayey soil. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern Absaroka Area: Rock Creek and South Fork Road, ca 17 air mi SW of Cedar Mountain summit.
Disturbed areas and under cottonwoods. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern Absaroka Area: South Fork Road, ca 0.5 air mi SW of Hunter Creek Road turnoff.
Along stream through burned sagebrush. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern 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.
Along gravel bars and low areas along the river and bench areas and disturbed areas. Phenology: flowering.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: along Steckley or Forest Road 942 above the head of East Logan Draw and Dugout Creek drainage, ca 12 air mi NNW of Bill; ca 50 air mi N of Dougals.
Sagebrush slopes and flats among the badlands and scoria. Phenology: flowering.
Annotations:
1. Chrysothamnus viscidiflorus (Hook.) Nutt. var. viscidiflorus
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: west side of Cow Creek Buttes on a ridge S of Middle Creek and Coal Draw, ca 14 air mi E of Bill; ca 41 air mi NNE of Douglas.
Sandy areas on slopes of large draw. Phenology: flowering.
Annotations:
1. Chrysothamnus viscidiflorus (Hook.) Nutt. var. viscidiflorus
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: along upper drainage of Woody Creek on Forest Road 944, ca 12 air mi N of Bill; ca 27 air mi SSE of Wright.
Grassland with yucca and sandreed. Phenology: flowering.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Red Hills immediately N of gravel pit on two track off of Forest Road 942, ca 16 air mi N of Bill; ca 24 air mi SE of Wright.
Scoria hills. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: 77 Hills on Wyo Hwy 270, ca 4.8 air mi N of Manville; ca 11 air mi NW of Lusk.
Mix ponderosa pine and grassland on silt-sand soil. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ravine running NE from Buck Creek, on Forest Road 926, ca 24 air mi E of Wright; ca 39 air mi W of Newcastle.
Ravine of sand and sandstone formations. Phenology: flowering.
Peter J. Ebertowski, 7798. 8/7/2003.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Brown Springs Creek, on two-track off Ross or County Road 31, ca 32 air mi NW of Douglas; ca 22 air mi NNE of Glenrock.
Sagebrush grassland. Phenology: flowering.
Peter J. Ebertowski, 7908. 8/8/2003.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Porcupine Creek, on two-track off Matheson or County Road 70, ca 13 air mi SE of Wright; ca 49 air mi S of Gillette.
Sandstone outcrop in sagebrush grassland. Phenology: flowering.
Peter J. Ebertowski, 7922. 8/9/2003.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Lake Creek and hills to the E, on Forest Road 1420C, ca 34 air mi SE of Wright; ca 44 air mi NNE of Douglas.
Ravine floor with inland saltgrass and alkali sacaton. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills between Sunny Draw and Beckwith Creek, on two-track off Forest Road 973, ca 23 air mi SE of Wright; ca 52 air mi SW of Newcastle.
Scoria hills; hilltops and ravines with ponderosa pine and Rocky Mountain juniper. Phenology: flowering.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: scoria hills SE of Logan Draw, on Forest Road 1416, ca 23 air mi SE of Wright; ca 49 air mi N of Douglas.
Scoria hills. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Antelope Creek, ca 0.5 mi W of its confluence with Wildcat Creek, on Forest Road 949, ca 28 air mi SE of Wright; ca 51 air mi NNE of Douglas.
Tall stream bank. Phenology: flowering.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Red Hills, ca 1 mi S of Antelope Creek, on four-wheel drive road, ca 23 air mi SE of Wright; ca 58 air mi WSW of Newcastle.
Scoria hills. Phenology: flowering.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Kaibab Plateau: Warm Springs Canyon at the junction of Forest roads 461 and 462, ca 4 air mi WSW of Jacob Lake; ca 22 air mi SE of Fredonia.
Stony canyon bottom with scattered trees. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: North Fork Shoshone River Drainage: Absaroka Mountains: along north side of North Fork Shoshone River, ca 1/8 mi W of Newton Creek Campground.
In open Douglas fir forest and in Artemisia steppe openings.
Accession: RM 726575, Barcode: RM0044859

U.S.A., Idaho, Teton County: Big Hole Mountains: Targhee National Forest: Idaho Ridge, ca 1/4 mi S of Packsaddle Road (Forest Road 235); ca 12 mi WNW of Driggs.
Sagebrush-grassland with Purshia tridentata, Festuca idahoensis, and Danthonia californica. Phenology: flowering & fruiting.
Accession: RM 754894

U.S.A., Idaho, Teton County: Big Hole Mountains: Targhee National Forest: ca 1/8-1/4 mi W and N of Forest Road 253, ca 8 mi SW of Victor.
T3N R44E S25
Sagebrush-grassland with Wyethia amplexicaulis, Koeleria macrantha, Symphoricarpos oreophilus, and Perideridia bolanderi. Phenology: flowering & fruiting.
Accession: RM 754769

U.S.A., Idaho, Madison County: Targhee National Forest: Big Hole Mountains: along the north side of Forest Road 219, ca 1.5 mi N of Graham Spring; ca 16 mi WNW of Driggs.
Rocky shrubland with Purshia tridentata, Symphoricarpos oreophilus, Astragalus convallarius, and Agropyron spicatum.

U.S.A., Montana, Park County: Along the south side of the Old Boulder Road E of the Yellowstone River just outside of Livingston.
T2S R10E S18
Grassland with Koeleria macrantha, Bouteloua gracilis, Arenaria hookeri, and Castilleja pallescens. Phenology: vegetative only.
Accession: RM 818707, Barcode: RM0019919

U.S.A., Idaho, Fremont County: Snake River Plains: boating access along the east side of the Henrys Fork River, 2.6 mi W of Ashton.
T9N R42E S33
Dry disturbed areas and roadways with Bromus japonicus, Purshia tridentata, and Euphorbia esula. Phenology: flowering & fruiting.
Accession: RM 819593, Barcode: RM0024454

U.S.A., Montana, Madison County: Madison Valley: South Madison Fishing Access along the east side of the Madison River, ca 25 mi S of Ennis.
T10S R1E S6
Disturbed grassland and roadsides with Berteroa incana, Grindelia squarrosa, and Stipa comata. Phenology: flowering & fruiting.

U.S.A., Montana, Park County: Gallatin National Forest: along the north side of Yellowstone River just west of Bear Creek, 2 mi E of Gardiner.
Saltbrush/greasewood grassland on barren south-facing slope with Alyssum alyssoides, Atriplex gardneri, and Sarcobatus vermiculatus. Phenology: flowering & fruiting.

U.S.A., Colorado, Conejos County: Eastern 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.
Flat areas of Chrysothamnus with scattered ponderosa pine and juniper. Phenology: flowering.
Annotations:
1. Chrysothamnus viscidiflorus (Hook.) Nutt. var. viscidiflorus
Annotated by Jeanette Flaig.
Accession: RM 795731

U.S.A., Colorado, Conejos County: Eastern 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.
Above the canyon with areas of sandstone pavement, soil patches, and rocky areas, with scattered pinyon pine, juniper, isolated Douglas fir and ponderosa pine. Phenology: flowering.
Annotated by Jeanette Flaig.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: Alder Creek: U.S. Hwy 160 E to County Road 17, N to Forest Road 610; ca 2 .5 air mi N of South Fork.
Pinyon/juniper and ponderosa pine woodland. Phenology: flowering.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 E to County Road 17 N to Forest Road 610; ca 5 air mi N of South Fork. South
Ponderosa pine forest with scattered Douglas fir, pinyon and juniper with Ribes understory. Phenology: flowering.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 W from Del Norte to rest area; ca 7 air mi W of Del Norte.
Along highway. Phenology: flowering.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: South Fork Guard Station, ca 1.5 air mi SW of South Fork.
Ponderosa pine, spruce and aspen forest and xeric meadow. Phenology: flowering.

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: Rio Grande National Forest: Colo Hwy 114 W to Forest Road 810 then ca 2 1/4 mi N; ca 21 air mi NW of Saguache.
Xeric meadow with ponderosa pine on south slope, large rock outcrops with bristlecone pine, Douglas fir, spruce on east-facing slope with scattered aspen throughout. Phenology: flowering.

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: Rio Grande National Forest: ca 1/3 mi on Lone Tree Gulch Road, ca 10 air mi NW of Saguache.
Pinus ponderosa woodland on west-facing slope with rocky outcrops into xeric meadow. Phenology: flowering.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Beaver Creek Road across from South Fork Guard Station, ca 2 air mi SW of South Fork.
Conifer and aspen forest with open meadows. Phenology: flowering.

U.S.A., Colorado, Conejos County: Eastern 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.
Rabbitbrush slope. Phenology: flowering.
Annotated by Jeanette Flaig.

U.S.A., Colorado, Conejos County: Eastern San Juan Mountains: just N of New Mexico at the junction of Forest roads 103 and 129, ca 5.5 air mi SSW of Fox Creek; ca 14.5 air mi SW of Antonito.
Chrysothamnus/Gutierrezia meadow. Phenology: flowering & fruiting.

U.S.A., Colorado, Conejos County: Eastern San Juan Mountains: Osier Park at the head of Toltec Creek and Massey Gulch, ca 1 mi E of Osier Mountain, ca 6.5 air mi SW of Fox Creek; ca 16 air mi WSW of Antonito.
Moist to dry meadows with patches of Potentilla fruticosa and Veratrum. Phenology: flowering.

U.S.A., Colorado, Grand County: Gore Range: ca 3 air mi SE of Radium and ca 10.5 air mi SW of Kremmling.
Flat sagebrush hilltop. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Hogback Lake and vicinity, ca 5.5 air mi SW of Rawlins; ca 6 air mi SE of Chokecherry Knob.
West-facing hill sloping down to lake; grasses dominant on slope, sagebrush and Sarcobatus in drainages; dry, fine soil with gravel. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Steamboat Mountain, ca 6.5 air mi WNW of Greasewood Wash; ca 13.5 air mi N of Superior.
41° 58' 58" N, 108° 57' 43" W; uncertainty 1 m., Digital Map
Dry, open, north-facing slope near spring; sagebrush dominant. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Wyoming, Fremont County: [location and coordinates withheld]
Open creek and surrounding banks; heavily grazed graminoids, scattered Salix; rocky soil; low species diversity. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Crooks Mountain: O'Brien Creek and adjacent slopes ca 4 air mi NW of Crooks Peak; ca 7 air mi SW of Jeffrey City.
Open gentle slope near creek; dense sagebrush dominant; dry gravel soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Freighter Spring, ca 8 air mi WSW of The Pinnacles; ca 9.5 air mi SE of Rock Cabin Springs.
Small open spring in narrow wash; dense sedges and graminoids dominant; hard clay soil. Phenology: flowering.

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Small dry wash on west-facing sagebrush slope; dense patches of Salix shrubs interspersed with dense sagebrush and tall graminoids. Phenology: flowering.

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Disturbed roadbed in dry sagebrush hills. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: lower Pine Creek, ca 8 air mi S of Atlantic City; ca 9.5 air mi N of Continental Peak.
Side of creek in steep sagebrush hills with uplifted shaley outcrops. Phenology: flowering.

U.S.A., Wyoming, Fremont County: [location and coordinates withheld]
Disturbed roadbed. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Antelope Reservoir, ca 7 air mi W of Bare Ring Butte; ca 14 air mi NE of Eagles Nest Spring.
Slight north facing slope of hill with sagebrush and grasses; fine sandy soil with rocks. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Battle Spring Draw, ca 27 air mi SW of Bairoil; ca 26 air mi N of Wamsutter.
Top of low hill with sagebrush and grasses; sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: rolling hills near Haystack Mountains, ca 8 air mi NW of Sinclair; ca 8 air mi NE of Rawlins.
Partially vegetated slope at base of hill; scattered grasses and sagebrush; sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: sand dunes near Honeycomb Buttes, ca 8.5 air mi NNW of Buffalo Hump Lake; ca 8 air mi SSE of Continental Peak.
Partially vegetated sand dunes with greasewood and grasses; sandy soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: ca 1 air mi S of Hay Reservoir; ca 2.5 air mi E of Luman Butte.
Sparsely vegetated sandstone buttes with silty sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Popo Agie River Drainage: banks of Beaver Creek, ca 2.5 air mi N of Schoettlin Mountain; ca 4 air mi SE of Weiser Pass.
Dry west facing slope with granitic outcrops and Bromus, scattered sagebrush, and juniper; fine silty soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Gros Ventre Area: Sheep Creek, at break with plains for ca 1.5 road mi; 5-6.5 air mi SE of Gros Ventre Junction.
Stream bottom often with Douglas fir and south exposed slopes. Phenology: flowering.

U.S.A., Wyoming, Teton County: Gros Ventre Area: Alkali Creek from Gros Ventre River Road to river and down stream ca 0.5 air mi.
Stream and river sides. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Gros Ventre Area: Goose Lake; ca 0.5 air mi W of Lake Creek.
Lake nearly dried out, on margins and roadside. Phenology: fruiting.

U.S.A., Wyoming, Teton County: Gros Ventre Area: Flat Creek, 2-4 air mi NW of Flat Creek Ranch.
T41N R115W S1
Open and wooded areas along stream or road. Phenology: flowering.

U.S.A., Colorado, Eagle County: Central Colorado: Gore Range, West Slope Continental Divide: Pitkin Creek Forest Service Trail 2012, ca 5 air mi E of Vail.
Spruce-fir and aspen forests, southwest aspect. Phenology: flowering & fruiting.

U.S.A., Colorado, Eagle County: Central Colorado: Gore Range, West Slope Continental Divide: Redsandstone Creek to Buffehr Creek Bike Trail, off Forest Road 700, ca 0.5 air mi N of Vail.
Open montane meadow with some aspen. Phenology: flowering & fruiting.

U.S.A., Colorado, Pitkin County: Central Colorado: Sawatch Range, West Slope Continental Divide: at junction of County Road 105 and County Road 307, east side of Forest Road 307, ca 1 air mi SE of Thomasville.
Mountain shrub with Purshia, Symphoricarpos, and Artemisia. Phenology: flowering.

U.S.A., Colorado, Pitkin County: Central Colorado: Sawatch Range, West Slope Continental Divide: along Forest Road 103 just E of end of pavement, ca 4 air mi N of Aspen.
Roadside with oak and Symphoricarpos woodlands. Phenology: flowering.

U.S.A., Colorado, Pitkin County: Central Colorado: Sawatch Range, West Slope Continental Divide: along Hunter Creek Trail 1992, E of Forest Service sign to second large meadow (ca 1 mi), ca 2 air mi NE of Aspen.
Aspen forest with several open montane meadows. Phenology: flowering & fruiting.

U.S.A., Idaho, Washington County: Payette National Forest and Vicinity: Hitt Mountains: area around open pit mine between heads of 4th of July and Dennett creeks, ca 16 air mi NW of Midvale; ca 18 air mi W of Cambridge.
Steep, mostly southwest-facing hillside dominated by Elymus spicatus and Lupinus. Phenology: vegetative only.

U.S.A., Colorado, Eagle County: Sierra Madre/Park Ranges: Park Range: in the vicinity of State Bridge.
T2S R83W S13; also S24
Pinyon-juniper. Phenology: flowering & fruiting.
with Sunny and Joel Kastning

U.S.A., Colorado, Routt County: Sierra Madre\Park Range: Park Range: Routt National Forest: N of head of Newcomer Creek, ca 7 air mi SE of Yampa, ca 27 air mi S of Steamboat Springs.
Sagebrush slope and flat. Phenology: flowering & fruiting.
with Steven Nelson

U.S.A., New Mexico, Guadalupe County: Santa Rosa: near CR-3Bd.
T8N R21E S1 SW1/4
Upland habitat. Phenology: flowering & fruiting.

U.S.A., Colorado, Eagle County: Sierra Madre\Park Range: Park Range: in the vicinity of State Bridge.
Pinyon-juniper.

U.S.A., Colorado, Routt County: Sierra Madre\Park Range: Park Range: vicinity of Mad Creek Trail, ca 7 air mi NNW of Steamboat Springs.
Near trail. Phenology: fruiting.

U.S.A., Colorado, Routt County: Sierra Madre/Park Range: Park Range: Mad Creek at junction of Elk River.
Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Reservoir edge, meadows, and sagebrush. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Sublette Range: ca 18 air mi N of Cokeville.
Sagebrush hillside. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Nugget Canyon, just S of Nugget.
Pondside willows and sagebrush, adjacent sagebrush, and open hillside. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Twin Creek, ca 3.5 air mi W of Nugget.
Creek edges in ten foot deep creek cut through sagebrush surroundings. Phenology: flowering & fruiting.
with Ronald L. Hartman

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Hams Fork, ca 2.5 air mi S of Kemmerer.
Riverside meadows, willows, and sagebrush. Phenology: flowering & fruiting.
with Ronald L. Hartman

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Underwood Canyon, ca 8 air mi SE of Cokeville.
Sagebrush hillside with some Prunus and Amelanchier. Phenology: flowering.
with Jane T. Kellett

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Trail Creek, ca 14.5 air mi N of Kemmerer.
Sagebrush hilltop and roadside. Phenology: flowering.
with Jane T. Kellett

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 4.5 air mi ENE of Pitkin.
Engelmann spruce. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 9.5 air mi ENE of Parlin.
Sagebrush meadow. Phenology: flowering & fruiting.
Accession: 773290

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 1 1/4 air mi ENE of Parlin.
Sagebrush hills. Phenology: flowering.
Accession: 773289

U.S.A., Arizona, Coconino County: Kaibab National Forest: Houserock Valley.
T38N R4E S18
Grassland community in shallow sandy gravel on a 3% east slope with grama, gelleta and yellowbrush; abundant; distributed widely. Phenology: flowering & fruiting.
Accession: USFS 475883

U.S.A., Wyoming, Fremont County: [location and coordinates withheld]
Artemisia tridentata var. wyomingensis, Elymus spicatus stand. Plot 96036 SW, SW, CS1/2 Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Upper Wind River Watershed: bench above Tappan Creek, ca 2.3 mi N of Dubois; E of 2-track that runs up through draw.
Sagebrush. Plot 94012 SW, NW, NE Phenology: flowering & fruiting.
with Chris Queen

U.S.A., Colorado, Larimer County: North-central Colorado: west side of Bull Mountain.
East slope badlands pasture; west slope with calciferous, green, and red clay rocky layers; limber pine Phenology: flowering.
with Sarah Nunn

U.S.A., New Mexico, Rio Arriba County: Carson 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.
Rabbitbrush/sagebrush areas. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: north-northeast slope and summit of Cerro Montoso.
Pinyon/juniper with some ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Pedro Mountains: southeast end of range, ca 10 air mi N of Seminoe Dam; ca 40 air mi NE of Sinclair.
Sagebrush/snakeweed flat in sandy soil between base of mountain and reservoir. Phenology: buds.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Cerro del Aire, west slope.
Pinyon/juniper grasslands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along County Road 40, ca 37.5 air mi NW of Basin and ca 4.5 air mi SSW of Greybull.
Sagebrush and greasewood with Salsola. Phenology: flowering.
with Michelle Wilson

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Foster Gulch or BLM Road 1119 (mapped as BLM Road 1919), ca 7 air mi SSW of Lovell and ca 26 air mi NW of Greybull.
Sagebrush on sandy soil. Phenology: buds.

U.S.A., Colorado, Mesa County: San Miguel and Lower Dolores River Drainages: ca 0.2 mi NW of Gateway Community Center.
Sandy soils with Atriplex, Sarcobatus, Abronia and Opuntia. Phenology: vegetative only.

U.S.A., Colorado, Montrose County: San Miguel and Lower Dolores River Drainages: Dolores River Drainage: Roc Creek.
Riparian area with Salix exigua and Distichlis spicata. Phenology: flowering & fruiting.
with Laura Cosse

U.S.A., Utah, Grand County: San Miguel and Lower Dolores River Drainages: Dolores River Drainage: Hotel Mesa, N of Dolores River.
With Coleogyne and Atriplex. Phenology: flowering & fruiting.

U.S.A., Utah, Grand County: San Miguel and Lower Dolores River Drainages: along Dolores River.
Riparian area along river with Salix exigua and Tamarix. Phenology: flowering & fruiting.

U.S.A., Utah, Grand County: San Miguel and Lower Dolores River Drainages: Manti-La Sal National Forest: Deep Creek.
T29N R25E S28; also S29
Open meadows with Lupinus, Festuca thurberi, Potentilla, and aspen groves; riparian areas with spruce, fir, and Sambucus; clear cuts with snowberry. Phenology: flowering & fruiting.

U.S.A., Colorado, San Miguel County: San Miguel and Lower Dolores River Drainages: along Whipple Mountain Trail.
At beaver ponds. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: ca 1/2 mi W Dead Ox Creek, ca 3 air mi W of South Pass City.
Sagebrush grassland. Phenology: flowering.

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: ca 0.5 mi S of Slate Creek; ca 22 air mi S of Lander.
Sagebrush grassland. Phenology: flowering.
with Rick Massatti

U.S.A., Wyoming, Teton County: Gros Ventre Area: Flat Creek, 2-4 air mi NW of Flat Creek Ranch.
Open and wooded areas along stream or road. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Wetlands and Adjacent Areas: Bitter Creek, ca 36 air mi E of Rock Springs.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Uinta County: Wetlands and Adjacent Areas: Muddy Creek, ca 19 air mi E of Evanston.
Dry, rocky uplands. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Wetlands and Adjacent Areas: Diamond Springs, ca 28 air mi SE of Lander.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Johnson County: Wetlands and Adjacent Areas: Lake De Smet, ca 9 air mi N of Buffalo.
Dry, rocky uplands. Phenology: flowering.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Dry, wooded uplands. Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Roosevelt National Forest: Front Range: Pole Hill Road (Forest Road 122) from U.S. Hwy 36 to Estes Park, ca 16 air mi W of Loveland.
West facing dry slopes with ponderosa pine, Douglas fir and Arctostaphylos, down to creek with aspen stands. Phenology: flowering.

U.S.A., Colorado, Larimer County: Roosevelt National Forest: Front Range: Hell Canyon Road (Forest Road 4021), from U.S. Hwy 36 to Estes Park, ca 15 air mi SW of Loveland. C
South facing slopes of ponderosa pine, and occasional aspen in shallow ravines. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: On the western side of Flaming Gorge Reservoir, near Utah.
41.0549° N, 109.6205° W; NAD 83, uncertainty 2 mi., Digital Map
Sagebrush-shadscale desert. Locally common. Phenology: flowering.
with Marjorie W. Porter

U.S.A., Wyoming, Carbon County: 5 mi N of Rawlins.
41.859° N, 107.2569° W; NAD 83, uncertainty 1.5 mi., Digital Map
Dry hills, sagebrush-grassland. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Santa 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.
Riparian through canyon of soft sedimentary rock in pinyon/juniper woodland. Excised drainage choked with clover. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: 16 air mi NNE of Espanola to 0.5 road mi S on U.S. Hwy 285.
Roadside. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Boulder Creek.
Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie.
Phenology: vegetative only.

U.S.A., Wyoming, Albany County: Laramie: Fish Hatchery.
Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie.
Phenology: fruiting.

U.S.A., Wyoming, Sweetwater County: Wamsutter.
Phenology: flowering.

U.S.A., Wyoming, Albany County: Huttons Lake.

U.S.A., Wyoming, Natrona County: Poison Spider Creek near Garfield Peak.
Phenology: buds.

Common on the open plains. Phenology: fruiting.
with Elias Nelson

U.S.A., Wyoming, Albany County: Laramie Hills.
On the open plains and in the foot hills. Phenology: fruiting.
with Elias Nelson

U.S.A., Wyoming, Lincoln County: Kemmerer [Diamondville*].
Common in the foothills. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Kemmerer [Diamondville*].
In the foothills. Common. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Point of Rocks.
On dry shale ridges. Phenology: fruiting.

Dry river bottoms. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Douglas.
Dry hills. Phenology: fruiting.

U.S.A., Wyoming, Sweetwater County: Rock Springs.
Among the hills. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Bennett Peak Recreation Area, along the Platte River.
Common on sagebrush slopes along the river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southeastern Plains: Goshen Hole: Fort Laramie National Historic Site: northern BLM tract at rim above North Platte River, ca 2.5 air mi WNW of Fort Laramie (town).
Limestone outcrops at valley rim with scattered Pinus ponderosa and with thin soil silt over limestone, north slope 2%; Pinus ponderosa/Andropogon scoparius wooded herbaceous vegetation; associated species are Elymus spicatus, Rhus trilobata, Occasional. Phenology: flowering & fruiting.
with Amy Symstad

U.S.A., Wyoming, Park County: North of Cody, S of Goff Lakes, on Monument Hill Road.
Level, loamy soil with Koeleria, Poa fendleriana, Agropyron smithii, Artemisia tridentata, A. cana, A. frigida, and Phlox hoodii. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Cody.
Abundant on flats. Phenology: vegetative only.
Elam Bartholomew, 7554. 7/4/1924.

U.S.A., Wyoming, Teton County: Jackson.
Dry hills. Phenology: flowering.
with E. N. Wilcox

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River Drainage: along Clearwater Creek, just N and S of U.S. Hwy 14, 16, and 20.
Along creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: North Fork Shoshone River Drainage: Absaroka Mountains: ridge along south side of North Fork Shoshone River, between Fishhawk and Mesa creeks, ca 40 mi W of Cody.
Forest opening with Artemisia tridentata. Phenology: vegetative only.

U.S.A., Wyoming, Park County: North Fork Shoshone River Drainage: Absaroka Mountains: along Elk Fork Creek Trail, ca 2 mi S of U.S. Hwy 14, 16, & 20.
In sagebrush-grassland community. Phenology: fruiting.

U.S.A., Wyoming, Park County: North Fork Shoshone River Drainage: Absaroka Mountains: along Elk Fork Creek, ca 9-10 mi S of U.S. Hwy 14, 16, & 20.
In open disturbed areas. Phenology: flowering.

U.S.A., Wyoming, Park County: North Fork Shoshone River Drainage: Absaroka Mountains: along north side of North Fork Shoshone River, ca 0.5-1 mi W of the mouth of Canyon Creek.
In sagebrush-grassland community. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Southeastern Absarokas: Stratford Ranch, SE of main ranch buildings along east side of South Fork Shoshone River, ca 40 mi SW of Cody.
Sagebrush-grassland community. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: sand dunes W of County Road 351, ca 4.4 air mi SW of Seminoe Dam; ca 23.5 air mi NE of Sinclair.
Sand dunes; open areas and knolls of Artemisia cana, Psoralidium lanceolatum, and Chrysothamnus sp. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Battle Mountain: base of Deer Ridge; E of Wyo Hwy 70; ca 6.5 air mi E of Savery.
Amelanchier overstory. Phenology: flowering & fruiting.

U.S.A., Wyoming, Big Horn County: Along Elk Creek Road, 8 mi W of Manderson.
Atriplex overstory. Phenology: vegetative only.

U.S.A., Wyoming, Natrona County: Casper Mountain area: 100 yds E of where Katy Creek crosses Gothmore Loop.
Sagebrush-grasslands. Phenology: fruiting.

U.S.A., Wyoming, Johnson County: Buffalo.
Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie plains: along road from Tie Siding to North Park.
George E. Osterhout, 1339a. 9/12/1897.

U.S.A., Wyoming, Albany County: Southern end of Laramie Plains; Steamboat Lake.
George E. Osterhout, s.n.. 9/12/1897.

U.S.A., Wyoming, Fremont County: Government Draw, 15 mi SE of Lander.
Big sagebrush grassland. Phenology: fruiting.

U.S.A., Wyoming, Fremont County: 2 mi E of Hudson at Wise ditch crossing.
Sandy loam. Phenology: buds.
Herbert G. Fisser, 52. 8/6/1959.

Dry soil. Phenology: flowering.

U.S.A., Wyoming, Washakie County: W of Worland, on the lower part of the Fifteenmile drainage area.
Sandy rock outcrop on Willwood Formation in 5-9 inch precipitation zone. Phenology: buds.

U.S.A., Wyoming, Fremont County: Cedar Rim, near its junction with Beaver Rim.
Phenology: flowering.

U.S.A., Wyoming, Sublette County: Foothills E of Wyoming Range: 1.9 mi N of the Ryegrass Junction near South Horse Creek.
Dry sand hills. Phenology: flowering.
with John S. Shultz and Kirsten Shultz.

U.S.A., Wyoming, Fremont County: Crooks Creek.
42.3695° N, 107.8522° W; NAD 83, uncertainty 0.5 mi., Digital Map
Roadside. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Hills.
Rocky draws and hillsides. Phenology: flowering & fruiting.
Leslie N. Goodding, 585. 9/5/1901.

U.S.A., Wyoming, Albany County: 1/2 mi below Happy Jack road, 7 mi SE of Laramie along U.S. Hwy 30.
On gravelly slopes. Frequent. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Bates Hole Drainage: 6 1/4 mi E of junction of Hwy 220 on Hwy 487, near little Red Creek bridge.
Frequent in gravelly soil near bridge. Phenology: fruiting.

U.S.A., Wyoming, Johnson County: 12 1/2 mi N of Kaycee, 24 mi S of Buffalo.
Frequent in gravelly soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Washakie County: 4 mi NE of Ten Sleep, near mouth of Ten Sleep Canyon.
In dry soil of Cercocarpus Juniperus hillside. Frequent. Phenology: fruiting.

U.S.A., Wyoming, Washakie County: 4 mi NE of Ten Sleep, near mouth of Ten Sleep Canyon.
Frequent in dry soil of Cercocarpus Juniperus covered hillside at mouth of canyon. Phenology: fruiting.

U.S.A., Wyoming, Teton County: [*Lower Ranch]
Clay hills. *Field book Phenology: flowering.

U.S.A., Wyoming, Teton County: [*Lower Ranch]
Clay hills. Flowers yellow. *Field book Phenology: flowering.

U.S.A., Wyoming, Fremont County: Beaver Divide.
Sagebrush type in sandy loam, with Atremisia tridentata, Agropyron dasystachyum, Poa secunda. Common. Phenology: fruiting.
Neland A. Kissinger, Jr., K-53. 8//1952.

U.S.A., Wyoming, Sweetwater County: Rock Springs.
Dry prairie. Phenology: buds.
with Leroy Peiler

U.S.A., Wyoming, Converse County: Douglas.
Barrow pit of highway in sandy soil. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Douglas.
Robert E. Pfadt, s.n.. 9/1/1942.

U.S.A., Wyoming, Campbell County: North Prong of Thunder Creek and Little Thunder Creek.
Ephemeral flood plain with big sagebrush, prairie junegrass, blue grama, and western wheatgrass on loamy clayey soil. Phenology: buds.
with D. W. Sabinske

U.S.A., Wyoming, Sublette County: Pinedale Glacial Fields: in the moraine E of Fremont Lake.
Common with Artemisia tridentata in moraine near lake. Phenology: buds.

U.S.A., Wyoming, Albany County: E of Laramie, Sherman Hills Addition.
Very abundant through area. Phenology: flowering.

U.S.A., Wyoming, Carbon County: 12 mi W of Baggs, above Red Draw Bridge.
Bluffs. Phenology: fruiting.

U.S.A., Wyoming, Sweetwater County: W of Sand Creek, 14 mi W of Baggs.
Sandy flats. Phenology: fruiting.

U.S.A., Wyoming, Sweetwater County: 6 mi SE of Black Rock Butte.
Sand hills. Phenology: flowering.

U.S.A., Wyoming, Teton County: Gros Ventre Mountains: Soda Lake.
Near a stream edge in open area, growing with Crepis sp. and Juncus sp.. Common. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Just N of the Hogsback on Dry Piney Creek.
Elev. 2200 m.
T27N R113W S6
Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Dry basin draw.
Artemisia cana-tridentata community. Phenology: fruiting.

U.S.A., Wyoming, Albany County: Laramie Plains.
Plains. Phenology: fruiting.

U.S.A., Wyoming, Sweetwater County: Granger.
Phenology: buds.

U.S.A., Wyoming, Park County: 10 mi E of Meeteetse beside Wyo. Hwy 120.
Dry sandy soil in sage brush scrub. Phenology: fruiting.
with James L. Nelson

U.S.A., Wyoming, Lincoln County: Fossil.

U.S.A., Wyoming, Fremont County: Sweetwater River Valley: south bank of Sweetwater River and Alkali Creek drainage; ca 5 air mi SW of Sweetwater Station (TNC Sweetwater Preserve).
Siltstone sandy gravel west facing slope of low ridge on the south side of river, dominated by Artemisia tridentata, Elymus spicatus, and Oryzopsis contracta. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: West foothills Laramie Range: along tributary wash of Spring Creek on north side of U.S. Hwy 30 at east end of Laramie.
Reddish sandy soil in bottom of dry wash and adjacent terraces dominated by Eriogonum microthecum, Gutierrezia sarothrae, Heterotheca, Agropyron cristatum, and Stipa comata. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: North Platte River Valley: sand dune complex on west side of County Road 351 at northwest end of ID Ridge, ca 2.5 air mi W of Seminoe Reservoir; ca 3.5 air mi SSW of Seminoe Dam.
Semi-stabilized coarse-sandy dune adjacent to acrive blowout on south-facing slope of 15-20%; community of Psoralidium lanceolatum, with Oryzopsis hymenoides, Chrysothamnus viscidiflorus, C. nauseosus, Elymus smithii, and Koeleria macrantha. Phenology: flowering & fruiting.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: along County Road 11, ca 1-1.5 mi S of County Road 28, ca 3-3.5 air mi NW of Buffalo Peak; ca 11.5 air mi WNW of Rand; ca 16-16.5 air mi SSW of Walden.
Roadside in sagebrush-rabbitbrush-grassland. Phenology: flowering & fruiting.
Annotated by Ronald L. Hartman.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: east side of Walden Reservoir, just W of Walden.
Roadside to shore. Phenology: flowering.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: 3.5 air mi S of Cowdrey.
Greasewood flats and vicinity. Phenology: flowering.

U.S.A., Colorado, Jackson County: North-central Colorado: Park Range: Newcomb Park Trail, 0.5-2.5 trail mi W of trail head (to granitic domes and Newcomb Creek angling NW), ca 20-21 air mi SW of Walden.
Meadows and woodland, pond edges. Phenology: flowering & fruiting.

U.S.A., Colorado, Routt County: North-central Colorado: Elkhead Mountains: Georges Gulch at County 52 E, ca 3 air mi N of The Sleeping Giant, ca 12 air mi NW of Steamboat Springs.
Roadside and right of way in rolling open hills. Phenology: flowering.

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: along Greenville Creek and Forest Road 440, ca 1.5-2 air mi E of Round Mountain, ca 1.5 air mi SE of Clark; ca 14.5 air mi N of Steamboat Springs.
Oak-chokecherry-sagebrush slope. Phenology: flowering & fruiting.

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: along Forest Spur Road 471.1 from Forest Road 471 to upper Long Draw, NE of Mount Candy, ca 2.5 air mi SE of Clark; ca 13.5 air mi N of Steamboat Springs.
Stony hill with chokecherry thickets. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Southwestern Absarokas: ca 21 air mi NW of Dubois in vicinity of Forest Service Road 513.
Lodgepole pine/Aspen-sagebrush ecotone and roadside.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Pathfinder Reservoir: National Wildlife Refuge N of County Road 410, ca 24 air mi NE of Three Forks Junction.
Sagebrush grassland on sandy shelf above reservoir. Phenology: flowering.

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Sagebrush draw. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Range: along unnamed creek, ca 18.5 air mi SW of Esterbrook; ca 21.5 air mi SW of Douglas.
Granite outcrops. Phenology: flowering & fruiting.
with J. Brondum and T. McGowan

U.S.A., Wyoming, Albany County: Laramie Range: ca 21.5 air mi SE of Laramie; 3/4 mi N of Colorado on U.S. Hwy 287; 1/2 - 3/4 mi W of U.S. Hwy 287.
Gravelly soil on grasslands. Phenology: flowering & fruiting.
with J. Brondum and T. McGowan

U.S.A., Colorado, San Juan County: Ca 2 mi N of Black Steer Cyn, 3 mi NE of Hatch Trading Post.
13° N, W; uncertainty 1 mi.
Sandy soils with Atriplex canescens and scattered Juniperus osteosperma. Phenology: flowering & fruiting.

U.S.A., Colorado, Rio Grande County: Rio Grande National Forest: Del Norte Ranger District: Shaw Mesa Cattle Allotment, along first side road off Road 340.
Elev. 2902 m.
T39N R4E S5 SW1/4 of SW1/4
Open savannah of ponderosa pine, aspen and Douglas fir: silt loam, 5% north-northeast slope. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: Colorado National Monument.
Pinyon-juniper woodland: dry, sandy soil. Phenology: flowering & fruiting.
Annotated by Loran C. Anderson in 1976.
with Marjorie W. Porter

U.S.A., Colorado, Gunnison County: Region of the Gunnison Watershed near Gunnison, CO.
Annotated by Loran C. Anderson in 1976.
1.
Annotated by Edward L. Greene in 1976.

U.S.A., Colorado, Park County: Near eastern shore of 11 Mile Reservoir.
Deep, moist, sandy soil; west facing slope. Phenology: flowering & fruiting.
with G. Roy and K. Keeley

U.S.A., Colorado, Moffat County: North Branch Red Wash: ca 10 km E of Little Snake River, ca 35 km N of Maybell.
Elev. 1900 m.
Sandy soil with Artemisia, Chrysothamnus, Agropyron, Stipa and Oryzopsis. Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Estes Park.
Annotated by Loran C. Anderson in 1976.
1.
Annotated by Aven Nelson in 1976.
Earl Lynd Johnston, 677. 8/10/1910.

U.S.A., Colorado, Jackson County: North Park.
George E. Glendenning, 1339. 9/10/1897.

U.S.A., Wyoming, Albany County: Laramie Range: along Boulder Creek and vicinity off Marshall or County Road 610, ca 3.5-4 air mi NE of Marshall, ca 74 air mi N of Laramie; ca 35.5 air mi S of Glenrock.
Open sagebrush slope. Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Near Rustic.

U.S.A., Wyoming, Albany County: Laramie Range: along Davidson Creek, ca 5 air mi NW of Marshall and ca 4 air mi SE of Little Medicine; ca 74.5 air mi NNW of Laramie.
Lee side of the ridge. Phenology: flowering & fruiting.
Annotated by B. A. Packer.

U.S.A., Wyoming, Albany County: Laramie Range: near the head of Davidson Creek, ca 4.5 air mi NW of Marshall and ca 4.3 air mi SE of Little Medicine; ca 75 air mi NNW of Laramie.
Rocky slopes with scattered sagebrush, limber pine, and juniper. Phenology: flowering & fruiting.
Annotated by B. A. Packer.

U.S.A., Colorado, Jackson County: Walden, CO.
George E. Osterhout, 5824. 8/9/1918.

U.S.A., Colorado, Grand County: Arapaho National Forest: Willow Creek N of Granby.
Sagebrush type. Elevation given as 8M. Phenology: flowering & fruiting.
Harley A. Orahood, s.n.. 8/1/1961.
Accession: USFS 475778

U.S.A., Colorado, Larimer County: Estes Park.
Dry hillsides. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Arapaho National Forest.
T3N R76W S10
Park; flat, clay loam. Phenology: flowering & fruiting.
Accession: USFS 475416

U.S.A., Wyoming, Converse County: Laramie Range: School Section Mountain ca 0.5-1 air mi W of Old Fort Fetterman or County Road 16, ca 18-18.5 air mi WNW of Esterbrook; ca 26 air mi SW of Douglas.
Rocky slopes with scattered limber pine. Phenology: flowering & fruiting.
Annotated by B. A. Packer.

U.S.A., Wyoming, Converse County: Laramie Range: Rocky Ford Creek in Downey Park ca 3/4 mi N of Albany County on Old Fort Fetterman or County Road 16, ca 17-17.8 air mi W of Esterbrook; ca 28 air mi SW of Douglas.
Uplands. Phenology: flowering & fruiting.

U.S.A., Colorado, Moffat County: Middle Fork Wolf Creek: 8 mi S of Hwy 40.
Sagebrush. Phenology: flowering & fruiting.

U.S.A., Colorado, Moffat County: Middle Fork Wolf Creek: 8 mi S of Hwy 40.
Sagebrush type. Phenology: flowering & fruiting.
Annotated by S. F. Blake.

U.S.A., Colorado, Grand County: 16 mi NE of Kremmling, Corral Creek area.
Annotated by Charles Feddema in 1970.

U.S.A., Colorado, El Paso County: Pike National Forest: Manitou Park.
Dry meadow, grama. Phenology: flowering & fruiting.

U.S.A., Colorado, Eagle County: 1.4 mi E of Vail, Gore Creek drainage.
Open aspen-sage slopes. Phenology: flowering & fruiting.
with Kent Fish

U.S.A., Colorado, Clear Creek County: Clear Creek, Idaho Springs.
Dry sterile field. Phenology: flowering & fruiting.
with Leroy Peiler

U.S.A., Colorado, Chaffee County: San Isabel National Forest.
10% west slope, sandy loam, rolling open area. Phenology: flowering.
Annotated by S. F. Blake.

U.S.A., Wyoming, Albany County: Laramie Range: along Corduroy Creek below Old Fort Fetterman or County Road 61, ca 17 air mi W of Esterbrook; ca 77.5 air mi N of Laramie.
Gentle threetip sagebrush slope and rocky slope with scattered limber pine. Phenology: flowering & fruiting.

U.S.A., Colorado, Moffat County: Craig cemetery.
Sagebrush. Phenology: fruiting.
Annotated by S. F. Blake.

U.S.A., Wyoming, Albany County: [location and coordinates withheld]
Rocky threetip sagebrush slopes and flats. Phenology: flowering & fruiting.

U.S.A., Colorado, Saguache County: San Isabel National Forest: North Rock Creek.
10% south slope, sandy soil, with oak and rabbitbrush. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: Colorado National Monument: 10 mi SW of Fruita.
Rocky hillside among sandstone rocks. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: 25 mi S of Rifle.
Among oak brush. Phenology: flowering & fruiting.
Annotated by Harold D. Harrington in 1948.

U.S.A., Colorado, Saguache County: Ca 0.5 mi W of Upper Saguache Forest Service Station.
T45N R5E S19 NW1/4 of SE1/4
Volcanic rim rock with Douglas fir just below; below rim rock. Phenology: flowering & fruiting.
with George Menkens, Doug Runde and Trish Maclaren.

U.S.A., Colorado, Jackson County: Basin in the Colorado Front Range E of the Continental Divide: east side of Highway 14 at junction with CO Highway 11A, 8.3 mi by road SSW of Hebron, 19 mi due SSW of Walden.
Dry pasture of level open ground, grassy and weedy; with Hordeum jubatum, Melilotus officinalis, Chenopodium album, Lupinus argenteus, Penstemon strictus, Aster sp. and Cirsium sp. Phenology: flowering & fruiting.
Theodore S. Cochrane, 10442. 8/5/1984.
with Barbara A. Cochrane

U.S.A., Colorado, Mesa County: Colorado National Monument: canyon just E of Kodel's Canyon.
North facing overhang-alcove and slope, pinyon-juniper woodland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Commissary Ridge: ca 0.5 air mi SE of Kemmerer Reservoir along powerlines E of paved road; ca 12 air mi NW of Kemmerer.
Rolling sagebrush-grasslands, southwest exposure with some aspen on northeast side of gravelly ridge, also along roadside. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: ca 6 air mi N of Kemmerer.
Sagebrush slopes with serviceberry and coralberry and grassy flats. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Oyster Ridge, ca 9 air mi N of Kemmerer.
Streamside and sandy slopes below, sandstone outcrops and sandy ridge above. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Tunp Range: Pine Creek, ca 2 road mi NNE of Pine Creek Ski Area, ca 8 air mi NE of Cokeville.
Stream bottom and shaley slopes. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Lake Viva Naughton, ca 13 air mi NNW of Kemmerer.
Reservoir edge, meadows, and sagebrush. Phenology: flowering.

U.S.A., Idaho, Clark County: Targhee National Forest: Beaverhead Range: along Crooked Creek in Crooked Creek Canyon at eastern boundary of National Forest, ca 25 air mi NW of Dubois.
Flat canyon bottom, dominated by Artemisia, Chrysothamnus, and grasses.

U.S.A., Idaho, Teton County: Targhee National Forest: East Slope Big Hole Mountains: entrance to Big Hole Canyon, ca 4 air mi SE of Victor.
Open slope dominated by shrubs and forbs, with occasional Abies lasiocarpa and Pseudotsuga menziesii.

U.S.A., Idaho, Lemhi County: Targhee National Forest and vicinity: Birch Creek Valley: ca 3 air mi SW of Nicholia.
T12N R28E S26; also S35
Sagebrush flat, vegetation mostly Artemisia and Chrysothamnus, sparsely distributed grasses and forbs.

U.S.A., Idaho, Lemhi County: Targhee National Forest and vicinity: Birch Creek Valley: ca 0.5 air mi W of Nicholia.
Sagebrush flat, mostly Artemisia and Chrysothamnus, a few scattered grasses.

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: mesa below Willow Peak, ca 10 air mi NE of Glenwood Springs.
Rocky mesa with sagebrush. Phenology: fruiting.
James P. Vanderhorst, 4525. 9/20/1991.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along Hartt Cabin Draw and benchland to the west, ca 34.5 air mi S of Wamsutter; ca 16 air mi WNW of Baggs.
T14N R94W S26 South1/2
Desert shrub benchland back of the bluffs. Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie Range: ca 10 air mi SE of Laramie.
Sagebrush grassland with granite outcroppings. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: J O Spring and vicinity between Delaney Rim and Laney Wash, ca 7.5 air mi S of Tipton; ca 46.5 air mi E of Rock Springs; ca 19 air mi WSW of Wamsutter.
Gentle slopes of desert shurb. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along Delaney Rim, ca 6 air mi SE of Table Rock (butte), ca 42 air mi E of Rock Springs; ca 23.5 air mi WSW of Wamsutter.
T18N R97W S30 South1/2
Sagebrush-snowberry pockets below the rim. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: along Black Butte Creek, ca 2.5 air mi W of Black Buttes, ca 8.5 air mi SSW of Point of Rocks; ca 19 air mi E of Rock Springs.
Banks above the stream channel on sagebrush flats. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: along Hiawatha or County Road 25 between Wyo Hwy 430 and Colorado, ca 45 air mi SE of Rock Springs.
Roadside. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: Carson Springs at the east base of Kinney Rim, ca 41.5 air mi SE of Rock Springs; ca 34 air mi SSE of Point of Rocks.
Dry areas around the springs. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: ridge ca 1 mi N of Alkali Wash and opposite BLM Road 4408 along Patrick Draw or County Road 24, ca 6-7 air mi NW of Pine Butte; ca 29 air mi SE of Rock Springs.
Desert shrub slopes and flats. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along Bitter Creek between Black Buttes and Bitter Creek UPRR sidings, ca 30.5 air mi ESE of Rock Springs; ca 34 air mi WSW of Wamsutter.
Low knoll with sandstone outcrops. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along Patrick Draw or County Road 24, ca 1.5 air mi SW of Bitter Creek siding, ca 32.5 air mi E of Rock Springs; ca 31.5 air mi WSW of Wamsutter.
Stony knoll. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Bench along the creek. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: ca 1 1/4 air mi SW of Fort La Clede ruins along BLM Road 4409, ca 42 air mi ESE of Rock Springs; ca 28 air mi SW of Wamsutter.
Stony slope. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along BLM Road 4412 in the Shell Creek drainage, ca 3.5 air mi SE of the Eversole Ranch, ca 44 air mi SE of Rock Springs; ca 25.5 air mi SW of Wamsutter.
Low, brushy sand dunes. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: along BLM Road 4412 at the edge of Skull Creek Rim above Skull Creek, ca 55 air mi SE of Rock Springs; ca 35 air mi W of Baggs.
Sand dune with greasewood and rabbitbrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: along BLM Road 4412 at the edge of Skull Creek Rim above Skull Creek, ca 55 air mi SE of Rock Springs; ca 35 air mi W of Baggs.
Sandy flats with sagebrush and rabbitbrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: N of Barrel Springs and the Overland Trail crossing of Barrel Springs Draw between the south end of Delaney Rim and east end of The Haystacks, ca 16 air mi SSW of Wamsutter.
Low sand dunes covered with Chrysothamnus, Grayia, Artemisia, and Sarcobatus and adjacent sandy clay flats. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: vicinity of Willow Reservoir between the east end of The Haystacks and Salazar Butte, ca 59.5 air mi ESE of Rock Springs; ca 22.5 air mi SSW of Wamsutter.
T16N R95W S27; also S22
Low sand dunes covered with Artemisia, Chrysothamnus, and Grayia. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: along Littlefield Creek and vicinity, ca 0.5 mi above Muddy Creek, ca 25 air mi SSW of Rawlins.
Sagebrush slopes. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: along Deep Gulch just above Cow Creek, ca 7 air mi E of Dad on Mexican Flats, ca 38 air mi SW of Rawlins; ca 20.5 air mi N of Baggs.
Small sandy areas on greasewood flats. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: along Cottonwood Creek and McCarty Canyon or County Road 503, ca 5 air mi NNE of Dixon; ca 50.5 air mi SSW of Rawlins.
Sagebrush flats and slopes. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: northeastern slopes and draws of Richards Mountain, ca 2 air mi NW of Richards Gap; ca 37 air mi SSW of Rock Springs.
T12N R105W S8 South1/2; also SW1/4 S9 and NE1/4 S17
Sandy draw. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Dry, rocky slopes. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Hillsides adjacent to creek. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: Bear Gulch drainage from unnamed, north/south oriented plateau, ca 1 air mi N of Cow Creek to The Sand Hills and Dry Cow Creek; ca 29 air mi SSW of Rawlins.
Sand dunes. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: slopes of butte, ca 1.5 air mi NE of Willow Creek; ca 2 air mi SW of Courthouse Butte; ca 29 air mi SSW of Wamsutter.
Gumbo slope. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: sagebrush flat between drainages to Willow Creek and roadside, ca 1.5 mi SW of Courthouse Butte; ca 1 mi NE of Church Butte; ca 28.5 air mi SSW of Wamsutter.
Sagebrush flat. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: in East Haystack Wash, ca 6 air mi S of The Haystacks; ca 5 air mi WNW of Salazar Butte; ca 25 air mi SW of Wamsutter.
Sand dunes. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: in The Horseshoe Bend, ca 2 air mi S of The Haystacks; ca 21.5 air mi SSW of Wamsutter.
T16N R96W S2 SW1/4; also SE1/4 S3
Sand dune. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: north facing drainages into Scheggs Draw, ca 1 air mi W of Rifes Rim; ca 33 air mi SE of Rock Springs.
T15N R101W S35 SW1/4; also SE1/4 S34 and T14N R101W NE1/4 S3 and NW1/4 S2
Sandy soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: southeastern top and upper slopes of Potter Mountain, including draw trending to the northeast on the east side of the mountain, ca 8 air mi NNE of Pine Mountain; ca 32 air mi SSE of Rock Springs.
South-facing upper slope. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: Washakie Basin: drainages north towards Red Creek, ca 1.5 air mi SW of Red Creek Rim; ca 1.5 air mi N of the Little Snake River; ca 8.5 air mi W of Baggs.
Flat above draw. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: spring area ca 1 air mi W of Sand Creek, ca 1.5 air mi S of Cedar Breaks Draw; ca 15 air mi WNW of Baggs.
Dry hillside. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: Rotten Springs and adjacent area, ca 2.5 air mi N of Powder Rim; ca 1 air mi S of Reader Cabin Draw; ca 20.5 air mi WNW of Baggs.
Dry slope. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: dry Upper Powder Spring and vicinity, ca 2 air mi WSW of Powder Mountain; ca 31 air mi W of Baggs.
T12N R97W S1 South1/2; also N1/4 S12
Creek terrace. Phenology: flowering.
2. Chrysothamnus viscidiflorus (Hook.) Nutt. ssp. viscidiflorus

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: south facing draws on drainage from Black Buttes area, ca 3 air mi NNE of Black Buttes; ca 1.5 air mi W of Bitter Creek; ca 22 air mi ENE of Rock Springs.
Creek terrace. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: north slopes of Black Buttes, ca 5 air mi W of Bitter Creek; ca 21 air mi ESE of Rock Springs.
North-facing lower slopes. Phenology: flowering.

East-facing slope. Phenology: flowering.

Hillside above spring. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-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.
River bottom beyond cottonwood woodland. Phenology: flowering.

River bottom away from the immediate riverside. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: slopes and draws, ca 1 air mi E of Killpecker Creek; ca 1 air mi SW of Stansbury Mine; ca 6.5 air mi NNE of Rock Springs.
Rocky, clay slope. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: draws and rolling hills of North Baxter Basin, ca 3 air mi S of Crooked Canyon; ca 10 air mi E of White Mountain; ca 13 air mi NNE of Rock Springs.
Clay flat. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: slopes and draws draining W to North Baxter Basin, ca 3 air mi W of South Superior; ca 15 air mi NNE of Rock Springs.
Clay slope. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: rock ledges, slopes and draws draining to Horsethief Canyon, ca 1.5 air mi S of South Superior; ca 0.5 air mi W of Horsethief Canyon; ca 16.5 air mi NE of Rock Springs.
Below sandstone outcrops. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Green River Basin: slopes and draws on sand knoll, ca 4.5 air mi E of Flaming Gorge Reservoir; ca 1.5 air mi S of Washam Wash; ca 32.5 air mi SSW of Rock Springs.
South-facing slope. Phenology: flowering.

Lower slopes, flat areas. Phenology: flowering.

Sandy ledges. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Douglas fir forest with sagebrush/grasslands on margin. Phenology: flowering.
with Bruce Embury

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Commissary Ridge: 0.5 air mi SE of Kemmerer Reservoir along powerlines E of paved road; ca 12 air mi NW of Kemmerer.
Rolling sagebrush-grasslands, southwest exposure with some aspen on northeast side of gravelly ridge, also along roadside. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Bench exposed due to draw-down of Palisades Reservoir and adjacent non affected area. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: ca 6 air mi N of Kemmerer.
Sagebrush slopes with serviceberry and coralberry and grassy flats. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: Oyster Ridge, ca 9 air mi N of Kemmerer.
Streamside and sandy slopes below, sandstone outcrops and sandy ridge above. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge area: Pine Grove Creek near northwest end of Cretaceous Mountain; ca 15.5 air mi SW of Big Piney.
Meadow along stream with patches of shrubs. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Tunp Range: Pine Creek, ca 2 road mi NNE of Pine Creek Ski Area, ca 8 air mi NE of Cokeville.
Stream bottom and shaley slopes. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Tunp Range: Hobble Creek from Sams Creek to Coantag Creek, ca 20 air mi NNE of Cokeville.
Stream bottom and lower slopes. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: ca 0.5 air mi S of southern end of Cretaceous Mountain, ca 14 air mi SW of Big Piney.
Hilltop with sagebrush slopes and semi-barren areas on ridges. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: ca 1 air mi W of summit of Hogsback Ridge, ca 18 air mi SW of Big Piney.
Stream sides and lower slopes in sagebrush and aspen with calcareous substrates. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: just W of Rainbow Camp, ca 20 air mi SW of Big Piney.
Shaley slopes and badlands. Phenology: flowering.

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: ca 2.5 air mi W of Kirby; ca 1 mi N of Gebo; ca 11 air mi N of Thermopolis, above and along Sand Draw.
Sandy clay flats.

U.S.A., Wyoming, Washakie County: Bighorn Basin: along Cottonwood Creek, ca 7.5 air mi WNW of Winchester; ca 20.5 air mi SW of Worland.
Dry wash.

U.S.A., Wyoming, Park County: Bighorn Basin: along Gooseberry Creek, ca 10.5 air mi SSE of Meeteetse.
Clay slopes with sandstone outcrops and ledges.

U.S.A., Wyoming, Park County: Bighorn Basin: at the base of Pappapau Butte along the Grey Bull River, ca 10.3 air mi SW of Meeteetse.
Slopes.

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: along Grass Creek, ca 4.5 air mi WSW of Grass Creek (town); ca 33 air mi NW of Thermopolis.
Flats along the creek.

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: northwest corner of Sheep Mountain along Wyo Hwy 11, 1.9 mi SW of Wyo Hwy 130.
In red sandy soil with Artemisia, Aster, Chrysothamnus nauseosus and Chrysothamnus parryi. Common. Phenology: flowering & fruiting.
with Linda Nelson

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: northwest corner of Sheep Mountain along Wyo Hwy 11, 1.9 mi SW of Wyo Hwy 130.
In red sandy soil with Artemisia, Aster, Chrysothamnus nauseosus and Chrysothamnus parryi. Phenology: flowering & fruiting.
with Linda Nelson

U.S.A., Wyoming, Park County: Northern Absarokas: "Battleship Mountain", ca 2.5 air mi NW of Dead Indian Pass, ca 24.3 air mi NW of Cody.
Rubble covered clay slope. Phenology: buds.

U.S.A., Wyoming, Park County: Northern Absarokas: red ridge between Paint and Blaine Creeks on County Road 7RO, ca 4.5 air mi N of Pat O'Hara Mountain, ca 18 air mi NW of Cody.
Sandy slopes on redbeds topped with gypsum. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Northern Absarokas: Elk Creek near mouth on Sunlight Creek, ca 2.5 air mi W of Dead Indian Hill, ca 24.7 air mi NW of Cody.
Dry sagebrush slope with scattered limber pine and Douglas fir. Phenology: flowering.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: along Purdy Creek NE of South Fork Fish Creek, ca 31.5-32 air mi ENE of Jackson.
Whitish clay flat on point of ridge. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: along Purdy Creek NE of South Fork Fish Creek, ca 31.5-32 air mi ENE of Jackson.
Sagebrush-grassland above the creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Fish Creek/Moccasin Basin area, along Hackamore Creek 0-1 mi above South Fork Fish Creek, ca 33-34 air mi ENE of Jackson.
Sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Fish Creek/Moccasin Basin area, along North Fork Fish Creek just above confluence with South Fork, ca 29.5 air mi ENE of Jackson.
Slopes and flats with sagebrush. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 13 air mi NNE of Reno Junction, ca 24 air mi SSE of Gillette along Belle Fourche River.
In upland with Grindelia and Artemisia. Frequent. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Powder River Basin: ca 18 air mi NNW of Bill, ca 51 air mi N of Douglas along Antelope Creek.
Frequent in sandy clay in bottomland with Artemisia and Grindelia. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Powder River Basin: ca 18 air mi NNW of Bill, ca 51 air mi N of Douglas along Antelope Creek.
Common in sandy clay in bottomland with Artemisia and Grindelia. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Powder River Basin: ca 7.5 air mi NW of Bill, ca 39 air mi N of Douglas on Wyo Hwy 59 along Dry Fork of the Cheyenne River.
Common in river bottom with Gutierrezia and Elymus. Phenology: fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: ca 2 air mi E of Castle Gardens, ca 6 air mi SSW of Tensleep.
Roadside.

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: along South Fork Owl Creek above Anchor Reservoir, ca 32 air mi W of Thermopolis.
Bottom of a draw in chugwater formation.

U.S.A., Wyoming, Park County: Bighorn Basin: along the Greybull River between YU Bench and Sheets Flat, ca 23.5 air mi NE of Meeteetse.
Cobblestone river flats.

U.S.A., Wyoming, Natrona County: Granite Mountain Uplift: Sweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction.
Sagebrush grassland at edge of draw. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: S of Dishpan Butte, ca 6 air mi NNW of Sweetwater Station.
Sagebrush grassland. Phenology: flowering & fruiting.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Top of Beaver Rim, butte W of Dishpan Butte, ca 7 air mi NNW of Sweetwater Station.
Slopes and top of butte. Phenology: flowering & fruiting.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Haines Farm, ca 9 air mi W of Riverton on U.S. Hwy 26.
Lane between horse pasture and big field. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Sweetwater Rocks: hill with Frank Triangulation Station on top, ca 7 air mi NE of Jeffrey City.
Sagebrush grassland below granite slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: Rock Creek Mountain, ca 18 air mi NNE of Sweetwater Station. Elev 6800-7100 ft.
Rocky sagebrush grassland slopes. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Sweetwater River, south of bridge across river on Agate Flats Road, ca 9.5 air mi ENE of Jeffrey City.
Dry sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Washakie Basin: Manual Gap, ca 22 air mi S of Tipton.
Dunes and sandy slopes at gap. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Washakie Basin: ca 2.5 air mi NE of Wamsutter.
Clay flats with sand dunes, shaley slope; dunes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Rock Springs Uplift: above Dry Canyon, and along Salt Wells Creek, ca 24 air mi SE of Rock Springs.
Sandstone uplift above canyon, with sandy areas, and Juniperus osteosperma, Pinus flexilis, Pseudotsuga, Cercocarpus montanus and C. ledifolius, on broad expanse of exposed rock, flats along creek; sand. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Rolling plains, eroded, sandy slopes, sandstone outcrops, small peak; plains. Phenology: buds.

U.S.A., Wyoming, Converse County: Powder River Basin: ca 1 air mi N of Orpha.
Plains along highway right-of-way, dry ditches; plains. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: South Middle Pumpkin Butte.
Limber pine slopes, rocky slopes, small pools of water on upper east slopes, plains and outcrops on summit; slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Powder River Basin: ca 5.5 air mi W of Midwest.
Sagebrush plain, sandstone outcrops and ridge, sandy roadsides; ridge. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Powder River Basin: Monkey Hill, ca 1 air mi NE of Glenrock.
Sandstone ridge, roadcut through hills, highway right-of-way; ridge. Phenology: buds.

U.S.A., Wyoming, Fremont County: Castle Gardens, ca 17 air mi SSE of Moneta.
Sandstone outcrops, badlands, and sandy plains. Phenology: buds.

U.S.A., Wyoming, Fremont County: Absaroka Mountains: vicinity of Double Cabin.
Meadows and river bottom; open slopes. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern Absarokas: Sunlight Creek, ca 24 air mi NW of Cody.
Open grassy ridges and slopes, granite outcrops and cliffs, streamside, and occasional sedimentary outcrop; grassy area. Phenology: flowering.

U.S.A., Wyoming, Park County: Northern Absarokas: falls on Sunlight Creek, south side, ca 4.5 air mi NE of Sunlight Ranger Station.
Northern exposure with Douglas fir and white spruce on slopes and bottom, respectively. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Plains: Near limestone quarry on Grand Avenue.
Grasslands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: South Fork Fish Creek between Purdy and Hackamore Creeks.
Meadows, gravel bars, and adjacent lodgepole pine forests. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: West Slope Wind River Range: ca 4 air mi NW of Wyo Hwy 28 on road SW and paralleling Sweetwater River canyon.
Granitic/metamorphic canyon slopes and canyon bottom; slopes. Phenology: flowering & fruiting.
with Jonathan Hughes

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: south shore of Boulder Lake, 10 air mi E of Pinedale.
Dry, sandy sagebrush grassland on bluff above lake. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: adjacent to Pole Creek Road, ca 4.5 air mi S of Half Moon Lake, 7 air mi E of Pinedale.
Dry, sandy-rocky roadside dominated by sagebrush and tumble mustard. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: Adjacent to Emigrant Trail (Lander Cutoff) Dirt Road on the Continental Divide, ca 2 air mi E of east flank of Prospect Mountains, ca 37 air mi NE of Farson.
Sandy, open sagebrush flats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: [location and coordinates withheld]
Weed in dry, sandy-gravelly parking and storage area. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: adjacent to Skyline Drive at junction of Lakeside Lodge Road, ca 0.25 mi S of South shore of Fremont Lake, 3 air mi NE of Pinedale.
Dry, sandy-gravelly roadside right-of-way. Phenology: flowering.

U.S.A., Wyoming, Fremont County: West Slope Wind River Range: Little Devils Creek Basin, ca 37 air mi E of Jackson.
Sagebrush-aspen ridge. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Deep Creek on Field or County Road 50 SE of Cow Creek Buttes, ca 17 air mi NW of Lance Creek, ca 30.5 air mi NW of Lusk.
43.21° N, 104.8908° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!
Rolling sagebrush-grassland. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: NE of Glomill Reservoir off County Road 125, ca 12 air mi W of Yoder; ca 21 air mi SW of Torrington.
41.9° N, 104.5279° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Rolling chalky plains with shallow swales. Phenology: flowering.

U.S.A., Wyoming, Converse County: [location and coordinates withheld]
Sagebrush-grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along a tributary of Twentymile Creek on Manning or County Road 53, ca 24.5 air mi NE of Douglas; ca 14 air mi N of Lost Springs.
Broken plains of sagebrush-grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Middle Fork Casper Creek on Oil Camp or County Road 210, ca 2 mi W of the north end of Pine Mountain, ca 3 air mi SSE of Powder River; ca 34.5 air mi WNW of Casper.
Sagebrush-greasewood flats in the stream bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Poison Spider Creek on Poison Spider or County Road 201 between Emigrant Gap Ridge and Oil Mountain, ca 18.5 air mi W of Casper.
Sagebrush-greasewood-rabbitbrush flats along the stream. Phenology: flowering.

U.S.A., Wyoming, Converse County: [location and coordinates withheld]
Sandy bench above the river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Sandy slopes and adjacent flats above the reservoir. Phenology: fruiting.

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Road banks along abandoned highway. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Chugwater Creek, ca 4 air mi SW of Chugwater, ca 22.5 air mi S of Wheatland.
Along a track between a hay field and sandy slope. Phenology: buds.
with Tim Chumley and Robbin Romberg

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Sand Creek ca 1/4 mi W of Hornbuckle Draw, ca 46 air mi NNW of Douglas; ca 25 air mi WNW of Bill.
Dry flats in the stream valley. Phenology: flowering & fruiting.
with Tim Chumley and Robbin Romberg

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Ross or County Road 31 between Dry Fork Cheyenne River and Cheyenne River Draw and along Cheyenne River Draw, ca 36 air mi NNW of Douglas.
Sandy rolling sagebrush-grassland. Phenology: flowering.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Stinking Water Gulch just off Ross or County Road 31, ca 24 air mi WNW Bill, ca 41 air mi NNW of Douglas.
Steep clay slopes. Phenology: flowering.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Antelope Creek and Ross or County Road 31, ca 31 air mi WNW of Bill, ca 50.5 air mi NNW of Douglas, ca 3.5 air mi SE of Ross.
Rolling grassland. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Muddy Creek off Spanish Diggings or County Road 34 ca 3 air mi E of Converse County, ca 13.8 air mi SW of Manville, ca 20.5 air mi WSW of Lusk.
At the base and on the slopes of silty bluffs along the creek. Phenology: flowering.

U.S.A., Wyoming, Teton County: Gros Ventre Area: Sheep Creek, at break with plains for ca 1.5 road mi; 5-6.5 air mi SE of Gros Ventre Junction.
Stream bottom often with Douglas fir and south exposed slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: south end of Elk Mountain.
Sagebrush and greasewood flats and adjacent ridge. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 10 air mi SW of Boulder, from old wooden bridge NE to section line.
Streamside and slope. Phenology: flowering & fruiting.
with Thomas Cramer

U.S.A., Wyoming, Teton County: Gros Ventre Area: Goose Lake; ca 0.5 air mi W of Lake Creek.
Lake nearly dried out, on margins and roadside. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 3.5 air mi NW of Farson.
Sagebrush and Atriplex plain with draws and gravel benches. Phenology: flowering.
with Jane T. Kellett

U.S.A., Wyoming, Sweetwater County: Green River Basin: East Buckhorn Draw at the confluence with West Buckhorn Draw in Eighteenmile Canyon, ca 20 air mi WNW of Farson.
Shale and sandstone canyonside with sparse sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 26.5 air mi WNW of Farson.
Shale and sandstone canyonside with sparse Atriplex and sagebrush. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: ca 15.5 air mi W of La Barge at the south end of Fontenelle Hogbacks.
Low sagebrush gravel hilltop and edge. Phenology: flowering.
with Jane T. Kellett and Steve Laster

U.S.A., Wyoming, Lincoln County: Green River Basin: ca 15.5 air mi W of La Barge at the south end of Fontenelle Hogbacks.
Rocky limestone outcrop on sagebrush hillside. Phenology: flowering.
with Jane T. Kellett and Steve Laster

U.S.A., Wyoming, Sublette County: Green River Basin: hill just N of Forty Rod Flat Well, ca 8 air mi N of Cora.
Sagebrush hillsides and open hilltops. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 4.5 air mi S of Boulder.
Riverside meadows and cottonwood/willows with adjacent sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Grindstone Butte, ca 3 air mi SE of Daniel.
Sagebrush hill and windswept, open ridgetops. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Fremont Butte, ca 6 air mi E of Boulder.
Sagebrush hillsides with granite outcrops. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 1 air mi NE of Big Sandy.
Dry creekbed with adjacent meadows, willow stands, and sagebrush hillsides. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: McNinch Reservoirs 1 and 2, ca 8.5 air mi NW of Big Piney.
Reservoir edge, meadows, and sagebrush with outflow stream meadowed edges. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Green River Supply Canal, ca 7 air mi S of Daniel.
Canal edge, meadows, willows, and sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: east end of Fontenelle Reservoir Dam, ca 3 air mi N of Fontenelle.
Reservoir edge with rabbitbrush, sagebrush, and assorted Chenopodiaceae. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: Fontenelle Reservoir at Fontenelle Creek entrance, ca 6.5 air mi NW of Fontenelle Dam.
Reservoir edge, flats, sagebrush and rabbitbrush, and willow lined dry irrigation ditch. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 4.5 air mi NW of Big Sandy.
Roadside ditches between irrigated fields. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: Green River at Slate Creek confluence, ca 1/2 air mi NE of Fontenelle.
Riverside beneath shale bluff, surrounding greasewood and rabbitbrush desert. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: County Road 315, ca 1 air mi SE of Viola.
Roadside meadows and willow lined ditches between irrigated fields. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Sheep Creek, ca 8.5 air mi NW of Viola.
Sagebrush canyon bottom and side with aspen and various conifer stands and a hillside spring. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Warren Bridge, ca 9 air mi N of Daniel Junction.
Riverside meadows, willows, and sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Ryegrass Reservoir, ca 4 air mi SW of Daniel.
Meadows on reservoir edge surrounded by sagebrush and rabbitbrush. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Horse Creek, ca 4.5 air mi SE of Merna.
Sandstone bluff above creek, sagebrush, aspen groves, and scattered limber pine. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Webb Draw, ca 5.5 air mi ENE of Merna.
Small reservoir, meadowed draw, hillside spring, aspen grove, and ridgetop sagebrush. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Lake Viva Naughton, ca 13 air mi NNW of Kemmerer.
Reservoir edge, meadows, and sagebrush. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Green River Basin: Slate Creek, ca 7 air mi W of Fontenelle.
Alkali creek flats, meadows with assorted Chenopodiaceae, and adjacent semi-barren bluff. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: Slate Creek, ca 7 air mi W of Fontenelle.
Alkali creek flats, meadows with assorted Chenopodiaceae, and adjacent semi-barren bluff. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Little Sandy Creek, ca 5 air mi SE of Leckie.
Creekside meadows, willows, and sagebrush. Phenology: flowering.
with Ben and Becky Cramer

U.S.A., Wyoming, Fremont County: Green River Basin: Sweetwater River, ca 8.5 air mi SW of South Pass City.
Riverside meadows, willows, and sagebrush. Phenology: flowering.
with Ben and Becky Cramer

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy Reservoir and River, ca 9.5 air mi N of Farson.
Reservoir edge sagebrush, riverside meadows and sagebrush. Phenology: flowering.
with Ben and Becky Cramer

U.S.A., Wyoming, Sublette County: Green River Basin: Chimney Butte Reservoir, ca 13 air mi N of La Barge.
Drying reservoir and surrounding sagebrush flats. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Green River, ca 9 air mi S of Big Piney.
Riverside meadows, sagebrush, and sagebrush bluff. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy River at Gasson Bridge, ca 20 air mi E of Fontenelle Dam.
Riverside meadows, sagebrush, and open hillsides. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy River, ca 1 air mi SW of Farson.
Riverside meadows, sagebrush, and open hillsides. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: South Cottonwood Creek, ca 11 air mi WSW of Daniel.
Roadside and sagebrush hillside above creek. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 2 air mi S of Boulder.
Gravel roadsides and irrigation ditchsides. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: ca 13.5 air mi NE of Kemmerer.
Sagebrush and Atriplex flats at the base of a mesa. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 5 air mi ESE of Big Piney.
Sagebrush hilltop edges. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: ca 13 air mi N of Opal.
Flat sagebrush, Atriplex, and Tetradymia hilltop. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Flat Top, ca 10.5 air mi SE of Big Sandy.
Rolling sandy sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 5.5 air mi E of Fontenelle Dam.
Sand dune sagebrush hills with Grayia and Tetradymia. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 15 air mi WSW of Farson.
Sandy sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 8 air mi W of Farson.
Sagebrush grassland hillsides and draws. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: hill just E of Bull Draw, ca 26 air mi N of Farson.
Sagebrush hill and open top. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 12 air mi N of Farson.
Clay draws and sandy sagebrush hills at the base of badlands hillsides. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 10 air mi SW of Daniel.
Gravel hillsides with clay spots and sparse sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 18 air mi N of Farson.
Sagebrush hill. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Big Sandy River, ca 18 air mi N of Farson.
Riverbank. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 10.5 air mi SE of Boulder.
Sandy gravel sagebrush hill. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Water Hole Draw at Big Sandy River, ca 23.5 air mi N of Farson.
Sandy sagebrush draw. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: hillside across U.S. Hwy 191 from west end of Big Sandy Reservoir, ca 14 road mi N of Farson.
Sagebrush and open hillside. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 14.5 air mi SW of Boulder.
Sandy sagebrush around badlands outcrop. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 6 air mi SW of Boulder.
Gravel sagebrush bluffside above river. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: The Mesa, ca 9.5 air mi WSW of Boulder.
Sagebrush gravel hilltop and edge. Phenology: flowering.

U.S.A., Colorado, Custer County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountain Valley: in the valley from the parking lot at the end of County Road 120 to the edge of the forest, S of Westcliffe.
Pasture-grassland. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Hanna Basin: Halleck Ridge from Rattlesnake Pass NE ca 2 air mi, ca 10-12 air mi S of Hanna; ca 8.5-9 air mi W of the town of Elk Mountain.
Slopes of ridge with clay and sandstone. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: area between Bitter and Cedar creeks, along BLM Road 3417, ca 11 air mi E of Saratoga and ca 10 air mi NW of Ryan Park.
Sagebrush hills. Phenology: flowering.

U.S.A., Colorado, Chaffee County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: ca 1-2 air mi S of Salida (city center).
Pinyon-oak shrubland with grassy openings. Phenology: flowering & fruiting.

U.S.A., Colorado, Summit County: Williams Fork Mountains: Arapaho National Forest: ridge N of Cottonwood Gulch, ca 4 air mi ENE of Heeney.
Rocky sagebrush meadow. Phenology: flowering.
Michael K. Kirkpatrick, 3846. 8/4/2010.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Shirley Basin: Dome Rock Reservoir E of County Road 291, ca 4.5 air mi N of Leo.
Cottonwoods, willows, and graminoids on reservoir banks. Phenology: flowering.

U.S.A., Montana, Big Horn County: SW of Big Bull Elk Creek along Yellowtail Reservoir.

U.S.A., Montana, Big Horn County: Southwest of Big Bull Elk Creek along Yellowtail Reservoir.
Sand dunes. Phenology: flowering.

U.S.A., Montana, Gallatin County: Wallrock Basin, ca 12 mi NW of Wilsall.
Wilhelm N. Suksdorf, 868. 8/26/1921.

U.S.A., Montana, Park County: Flathead Creek, northwest of Wilsall.
Wilhelm N. Suksdorf, 994. 9/15/1921.

U.S.A., Montana, Gallatin County: Bozeman.
Dry rocky uplands. Phenology: flowering.

U.S.A., Montana, Missoula County: Missoula: lower Miller Creek Road.

U.S.A., Montana: Fridley.
with Ernst A. Bessey

U.S.A., Montana, Silver Bow County: E of Butte.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Pathfinder Reservoir: North Platte River E of BLM Road 3108, ca 4.2 air mi N of Kortes Dam.
Greasewood flats at rivers edge; disturbed. Phenology: flowering.

U.S.A., Wyoming, Platte County: Wyoming Army National Guard Camp Guernsey Training Area: Gray Rocks Ranch Parcel, tributary to Gray Rocks Reservoir.
zone 13, 518721E, 4668383N; NAD 83, Specimen Label
High plains, on terrace above large sandy wash tributary to reservoir, with Artemisia filifolia, Yucca glauca, Artemisia dracunculus, Oryzopsis hymenoides, Eriogonum annuum, and Bromus tectorum; Tributary Valley Alluvium; soils Clarkelen, wet-Anvil loams. Flowers yellow. USGS 7.5' Wheatland NE Quad. Phenology: flowering.
with Donald L. Hazlett

U.S.A., Wyoming, Fremont County: Upper North Platte and Laramie River Drainages: The Dry Lakes S of Beaver Rim or BLM Road 2401, ca 14.3 air mi NE of Jeffrey City.
Sagebrush-grassland. Phenology: flowering.

U.S.A., Colorado, No county County: Rio Grande National Forest: Dry Gulch.
S-slope; dry soil. Phenology: flowering.
Stephen E. Doering, 9. 9/12/1914.

U.S.A., Colorado, no county County: Rio Grand National Forest: Alamaditas C. and H. allotment.
On level ground; in sandy loam soil. Phenology: vegetative only.

U.S.A., Colorado, Mesa County: 25 mi S of Rifle.
Among oak brush. Phenology: fruiting.

U.S.A., Colorado, Summit County: Gore Range: Arapaho National Forest: vicinity of Surprise Trailhead near the end of Cataract Creek Road, ca 19 air mi NW of Silverthorne at I-70.
Sagebrush-forb slopes and depressions. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Blue River Valley: between the river and the north end of Lawson Ridge E of Colo Hwy 9, ca 4 air mi S of Kremmling.
Sagebrush. Phenology: flowering & fruiting.

U.S.A., Colorado, Summit County: Williams Fork Mountains: Arapaho National Forest: along Cottonwood Gulch and ridge between Cottonwood and Laskey gulches from Colo Hwy 9 NE ca 1 air mi to above the head of Laskey Gulch at the base of the cliffs below Williams Peak, ca 18.5-19 air mi NNW of Silverthorne at I-70.
Clayey slopes and ridges with sagebrush, open areas, and Douglas fir groves.. Phenology: flowering & fruiting.

U.S.A., Colorado, Eagle County: East edge of subdivision, ca 1 air mi E of Eagle from I-70 exit 147.
Heavily recreated sagebrush-rabbitbrush shrubland with clay-silt soil. Phenology: flowering & fruiting.
Michael K. Kirkpatrick, 9063. 8/18/2011.

U.S.A., Colorado, Grand County: Blue Valley Ranch: northeast of working compound.
Elev. 7551 ft
Shrub community in dry mountain loam with north aspect above riparian area. Phenology: vegetative only.

U.S.A., Colorado, Grand County: Blue Valley Ranch: Stretch Ribbon Bridge on Blue River.
Decidusous riparian habitat along river. Phenology: buds.

U.S.A., Colorado, Grand County: Blue Valley Ranch: vicinity of Riverside Cabin.
zone 13, 383343E, 4422490N; unknown, Specimen Label
West-facing slope on shelf above creek with big sage, rabbitbrush, and snowberry. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Encampment.
Dry open meadow. Abundant; flowers yellow. Phenology: fruiting.

U.S.A., Wyoming, Carbon County: Sierra Madre: above Tennant Creek, ca 4 air mi WSW of Encampment.
Dry open slope with sagebrush. Few plants. Phenology: flowering.

Open slope in second year after burn; predominately grasses at edge of ponderosa pine. Phenology: flowering.

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Spring Gulch.
Streamside and slope. Phenology: flowering.

U.S.A., Idaho, Butte County: Challis National Forest: Lost River Range: lower Ramshorn Canyon, 13 air mi N of Arco.
Well developed soil in xeric shrub-steppe vegetation; 14° slope, ESE aspect; silty, sandy limestone geology. Population is dominant throughout the area. Phenology: flowering.

U.S.A., Wyoming, Uinta County: [location and coordinates withheld]
Gentle sagebrush slopes. Phenology: flowering.

U.S.A, Idaho, Custer County: Big Lost River Valley: northwest edge of Mackay Reservoir, W of Battleground Cemetary, 6.6 air mi NW of Mackay.
Dominant population in xeric soil within shrub-steppe vegetation, 1 degree slope, S aspect. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Seedskadee National Wildlife Refuge: ca 24 air mi SW of Farson; ca 1.0 road mi W on access road from Sweetwater County Road 8.
41.9326° N, 109.903° W; uncertainty .75 mi., Digital Map
Steep sandy cliffs with western aspect overlooking the river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Ca 15 mi WSW of Yoder near Mers Hill.
41° 52.7' N, 104° 35.1' W; unknown, , Specimen Label
Chalky outcrop, with Artemisia longofolia and Rhus aromatica. Shrub; flowers yellow. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Linwood Canyon, ca 3 air mi NE of Manila, UT; junction of Henrys Fork and Wyo Hwy 530.
41.0023° N, 109.6661° W; uncertainty 1 mi., Digital Map
Creek drainage in arid desert. Phenology: flowering & fruiting.

U.S.A., Colorado, Summit County: Williams Fork Mountains: Arapaho National Forest: along Cottonwood Gulch and ridge between Cottonwood and Laskey gulches from Colo Hwy 9 NE ca 1 air mi to above the head of Laskey Gulch at the base of the cliffs below Williams Peak, ca 18.5-19 air mi NNW of Silverthorne at I-70.
Clayey slopes and ridges with sagebrush, open areas, and Douglas fir groves.. Phenology: flowering & fruiting.
Accession: USFS (unaccessioned), Barcode: USFS0060675

U.S.A., Arizona, Mohave County: Arizona Strip: rim on east side of Clayhole Wash Valley, N of County Road 30, ca 23 mi SE of Hurricane.
zone 12S, 306231E, 4077137N; NAD 83, Specimen Label
Gypsum slopes of Chrysothamnus viscidiflorus-Ephedra torreyana-Artemisia begelovii; soil covered by cryptogammic crust. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Overthrust Belt: Bridger Basin, west side of BLM road ca 1.5 mi E of Crawford Mountain and 9.5 mi S of Sage Junction/Wyo Hwy 89, ca 2 mi of Utah.
zone 12T, 499035E, 4613722N; NAD 83, Specimen Label
Rocky clay flats below south-facing mesa in community of Artemisia arbuscula-Krascheninnikovia lanata with Gutierrezia sarothrae, Chrysothamnus viscidiflorus, & Atriplex falcata. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: rim of Craven Creek, ca 0.7 mi S of Round Mountain, ca 8 mi NE of Kemmerer.
zone 12T, 549557E, 4635756N; NAD 83, Specimen Label
Rim and upper slopes of gray clay covered by brownish-white sandstone rock; cushion plant and scattered shrub community of Ericameria parryi, Eriogonum acaule, E. brevicaule var. brevicaule, Poa secunda, Artemisia tridentata var. wyomingensis. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Cow Butte Road 1 mi off Willows Road in Atlantic Rim gas fields, ca 20 air mi N of Baggs.
Loamy sand; on sagebrush steppe; slope 0-5 deg; with Chrysothamus nauseosus, Artemisia spp., Achnatherum hymenoides, Poa secunda, Koeleria macrantha, Opuntia sp., Hesperostipa comata, Phlox spp. Phenology: flowering & fruiting.
with Rebecca Upjohn

U.S.A., Utah, Daggett County: Southwestern Wyoming and Adjacent Utah: Grasshopper Island in the Green River, ca 11 air mi E of Dutch John.
Shoreline. Phenology: flowering & fruiting.
with Duane Atwood and Lucy Jordan

U.S.A., Utah, Daggett County: Southwestern Wyoming and Adjacent Utah: Red Creek Campground on south side of Green River.
Sandy limestone; northern aspect. Phenology: flowering & fruiting.
with Duane Atwood and Lucy Jordan

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Seedskadee National Wildlife Refuge: ca 26 air mi NW of Green River; 2.3 mi S of Refuge Headquarters on through waterfowl viewing gate on north side of river.
41.8926° N, 109.8148° W; uncertainty .75 mi., Digital Map
Upland, gravelly semi-barren sagebrush slopes. Phenology: flowering & fruiting.

Dry irrigation ditch, sandy soils. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Ferris Mountains: Miners Canyon on northeastern side of range, ca 16 air mi N of Independence Rock.
Along creek; chokecherry, hawthorn, willow, boxelder, and sagebrush common. Phenology: flowering.
with Kevin J. Taylor

U.S.A., Wyoming, Platte County: Ca 7 mi WSW of Wheatland.
42° 2.3' N, 105° 5.1' W; unknown, , GPS reading
Sandy-gravelly bank, with Physalis and Achnatherum hymenoides. Flowers yellow; shrub 3 dm high. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Washakie Basin: along Adobe Town or BLM Road 3317, ca 4 air mi SE of Haystacks, ca 23.5 air mi SSW of Wamsutter.
Green River formation, Laney member, shale, oil shale, muddy sandstone, tuffaceous sandstone; saline pale brown loamy sand soil; slope 10 deg, aspect south; desert basin, with Ericameria nauseosa, Artemisia tridentata var. wyomingensis, Sarcobatus vermiculatus, Achnatherum hymenoides, Atriplex confertifolia, Grayia spinosa, Senecio sp., Atriplex sp. Phenology: flowering.
Annotated by Bonnie Heidel.
with Julia Battisti

U.S.A., Wyoming, Sweetwater County: Great Divide Basin: along Riner Cutoff or BLM Road 3203 N of Chain Lakes, ca 23 air mi NNE of Wamsutter.
Battle Springs formation, coarse grained sandstone, conglomerate, and boulders; light yellowish brown soil; slope <5 deg, aspect west; saline upland in desert basin, with Krascheninnikovia lanata, Artemisia peditifida, A. tridentata var. wyomingensis, Alyssum desertorum, Achnatherum hymenoides, Sphaeralcea coccinea, Opuntia polyacantha, Phlox hoodii, Eriogonum ovalifolium, Atriplex gardneri, Penstemon sp. Phenology: flowering.
Annotated by Bonnie Heidel.
with Julia Battisti

U.S.A., Wyoming, Sweetwater County: Red Desert in Great Divide Basin: along Red Creek or BLM Road 3219, ca 28.5 air mi NNW of Wamsutter.
Wasatch formation, claystone, siltsone, calcareous sandstone, carbonaceous shale; pale brown shallow sandy soil; desert basin, with Artemisia tridentata var. wyomingensis, Hesperostipa comata var. comata, Achnatherum hymenoides, Krascheninnikovia lanata, Eriogonum ovalifolium, Penstemon arenicola, Phlox hoodii, Atriplex confertifolia, Astragalus spatulatus, Astragalus sp., Tetradymia sp. Phenology: flowering & fruiting.
with Kyle Donahue

U.S.A., Wyoming, Carbon County: Washakie Basin: along Wild Cow or BLM Road 608, ca 1 mi N of Cow Creek, ca 40 air mi SW of Rawlins.
Lewis shale, light to dark gray shale, siltstone, very fine grained sandstone; light brownish gray loamy sand soil; saline desert basin, with Ericameria nauseosa, Artemisia tridentata var. wyomingensis, Sarcobatus vermiculatus, Atriplex confertifolia, Eriogonum sp., Tetradymia sp., Opuntia polyacantha, Phlox hoodii, Penstemon sp. Phenology: flowering & fruiting.
Annotated by Bonnie Heidel.
with Kyle Donahue

U.S.A., Wyoming, Carbon County: Ferris Mountains: Youngs Pass area, ca 12 mi E of Bairoil; ca 44 mi N of Rawlins.
Open summit on gravelly soils from mudstone; with Elymus spicatus, Chrysothamnus viscidiflorus var. lanceolatus.

U.S.A., Wyoming, Campbell County: Washakie Basin: along Cow Butte or BLM Road 3308, ca 20 air mi N of Baggs.
Lewis shale calcareous shale, siltstone, very fine grained sandstone; brown sand; slope 1.5 deg, aspect south; talf plains, with Opuntia polyacantha, Artemisia cana, Eriogonum ovalifolium, Ericameria nauseosa, Alyssum desertorum, Koeleria macrantha, Achnatherum hymenoides. Phenology: flowering & fruiting.
Annotated by Bonnie Heidel in 2018.
with Anah Soble

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Pathfinder Reservoir and Mountain: Bishop Point Recreation Area, ca 3.4 air mi W of County Road 409; ca 10.5 air mi SW of Alcova townsite.
Along creek; graminoids dominant; Ribes and big sage common. Phenology: flowering.

U.S.A., Wyoming, Albany County: West slope Laramie Range: ca 1.3 mi N of U.S. Hwy 30, ca 3.1 air mi E of downtown Laramie.
Sand plain, sandy loam; with Artemisia nova, Hesperostipa comata, Artemisia frigida. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: near County Road 211, ca 6.6 air mi SW of Powder River townsite.
Badlands; sagebrush and saltbush common. Phenology: buds.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Boggy Meadows, ca 4 air mi W of Table Mountain; ca 8.5 air mi NE of Separation Point.
Edge of small alkaline pond in depression in rolling sagebrush sand dunes; moist sandy soil. Phenology: flowering & fruiting.

Chrysothamnus viscidiflorus var. viscidiflorus ()
Roadside in desert shrub community. Phenology: flowering & fruiting.
, 28827. //.

U.S.A., Wyoming, Lincoln County: Basins and Mountains of Southwest Wyoming: ca 6.8 air mi W of Kemmerer; 2.1 mi S on County Road 328.
Rolling sagebrush hills, clay soils. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Hanna Basin: Sand Ridge N of U.S. Hwy 30-287, ca 4.4 air mi NW of Hanna.
Grasslands on coal beds with rabbitbrush and four-winged saltbush. Phenology: buds.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Edson N of U.S. Hwy 30-287, ca 12 air mi SW of Hanna.
Sagebrush, rabbitbrush, and grasses common. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Castle Basin E of Buzzard or County Road 497, ca 19.4 air mi E of Three Forks Junction.
Sagebrush-grassland; red sandy soil. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Steamboat Lake S of Wyo Hwy 220, ca 19 air mi W of Alcova townsite.
Sandy basin of sagebrush, rabbitbrush, and grasses. Phenology: flowering.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Cable Gulch: off Forest Road 174, ca 12.4 air mi NE of Salida.
Roadside in ponderosa pine forest. Phenology: flowering.
with Irene Thien