: 1.21 $2024-03-28T13:39:50-7:00100.26.140.179searchRMUSFS854054 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2597David Rosenthal1997718199U.S.A.WyomingParkNorthern Absaroka Area: Shoshone National Forest: Northern Absaroka Wilderness: Dead Indian Creek Trail, ca 21 air mi NW of Cody.-109.435244.746718591951Sagebrush slopes with scattered limber pine, juniper, and spruce/fir forest in moist areas. Phenology: flowering.RMUSFS854053 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.58794Ronald L. Hartman Jim Fowler1997726207U.S.A.WyomingParkNorthern Absaroka Area: east side of Sheep Mountain, ca 11 air mi SW of Cedar Mountain.-109.325344.406617072012Sedimentary slopes with wet spots. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.57342B. E. Nelson2002711192U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: along Alkali Draw above Buffalo Creek Road, ca 1.5 air mi NW of Goose Butte, ca 9.5 air mi W of Upton.-104.811844.090213561365Grassy slopes along the draw. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1010Peter J. Ebertowski200273184U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: tributary of Mule Creek, 6.5 mi SE of Mule Creek Junction on U.S. Hwy 18, ca 36 air mi S of Newcastle; ca 42 air mi NNE of Lusk.-104.130743.319312191250Gently sloping grassland, soils somewhat clayey. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1318Peter J. Ebertowski200277188U.S.A.WyomingCrookThunder Basin National Grassland and Vicinity: Cracker Creek on County Road 68, ca 25 air mi NNE of Weston; ca 40 air mi NNE of Gillette.-105.035544.746711891225Creek bed. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1361Peter J. Ebertowski200277188U.S.A.WyomingCrookThunder Basin National Grassland and Vicinity: right of way on County Road 68, ca 16.5 air mi ENE of Weston; ca 37 air mi NE of Gillette.-105.015244.658612431250Side of road. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1874Peter J. Ebertowski2002717198U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: spring and head of Holmes Creek on Payne or Forest Road 934, ca 18 air mi SE of Wright; ca 26 air mi N of Bill.-105.229543.600914631496Creek bed. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2090Peter J. Ebertowski2002722203U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Cow Creek Buttes on East Bill or Forest Road 958, ca 43 air mi NNE of Douglas; ca 41 air mi SE of Wright.-104.970843.298214141463Creek bed. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2327Peter J. Ebertowski2002727208U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Piney Creek on Piney Creek or County Road 17, ca 24 air mi ESE of Wright; ca 27 air mi NNE of Bill.-105.069943.586814201445Creek bed. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3290Peter J. Ebertowski2002820232U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: along Coal Creek and one of its tributaries ca 2 air mi WSW of Coal Creek's confluence with Little Powder River, ca 24 air mi ENE of Gillette; ca 31 air mi NW of Moorcroft.-105.339344.614511821207Creek floodplain, stony soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3517Peter J. Ebertowski2002826238U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: ponderosa pine covered ridge and ravines N of and draining to Little Thunder Creek, ca 20.5 air mi E of Wright; ca 46 air mi SSE of Gillette.-105.089943.700114631554Scoria ridge, bluebunch wheatgrass and plains muhly. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.970Peter J. Ebertowski200271182U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills N of Thunder Basin Work Center off Wyo Hwy 450, ca 26 air mi ESE of Wright; ca 45 air mi SSE of Gillette.-105.149743.685913991500Scoria hills with ponderosa pine and Rocky Mountain juniper. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5204Peter J. Ebertowski2003620171U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills W of Little Powder River S of Coal Creek on dirt road off of Wyo Hwy 59, ca 23 air mi NNE of Gillette; ca 31 air mi NW of Moorcroft.-105.359544.599812041353Scoria hills with ponderosa pine and Rocky Mountain juniper. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5305Peter J. Ebertowski2003622173U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: southern edge of Buck Creek Hills, on Meridian or County Road 17, ca 24 air mi N of Lusk; ca 13 air mi ENE of Lance Creek.-104.415743.110313351371Grassland with widely spaced yucca. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5904Peter J. Ebertowski200373184U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills N of confluence of North Fork Duck Creek and Duck Creek, off dirt road to Dickinson Ranch, ca 39 air mi NNE of Gillette; ca 39 air mi NNW of Moorcroft.-105.188344.808611581201Grassy ravine in silver sagebrush grassland. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6387Peter J. Ebertowski200379190U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Sage Creek on Old Highway 85 or County Road 9, ca 4.5 air mi E of Mule Creek Junction; ca 32 air mi S of Newcastle.-104.130943.360811821207Grassy ravine with silver sagebrush. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6518Peter J. Ebertowski2003711192U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: TA Buttes on two-track road off Union Chapel Road, ca 6 air mi SE of Gillette; ca 4.5 air mi S of Wyodak.-105.398744.223413901463Mosaic of sagebrush grassland and grassland. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6742Peter J. Ebertowski2003714195U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Belle Fourche River, on Clarkelen Road, ca 13 air mi SW of Wright; ca 45 air mi SSW of Gillette.-105.688343.657615511570Ravine in sagebrush grassland. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6814Peter J. Ebertowski2003716197U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Rochelle Hills N of Wildcat Creek, on two-track road off Rochelle Hills or Forest Road 933, ca 19 air mi SE of Wright; ca 56 air mi SSE of Gillette.-105.113444.146414931536Ravine slope with silver sagebrush. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6987Peter J. Ebertowski2003718199U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: grassland ridge separating South Cottonwood and North Oat creeks, on Boner or County Road 18, ca 50 air mi S of Newcastle; ca 29 air mi NE of Lusk.-104.17243.108713101353Grassland with clayey soils. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7042Peter J. Ebertowski2003723204U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Big RW Creek, ca 1 mi N of its confluence with Black Thunder Creek, on Keeline or Forest Road 930, ca 18 air mi E of Wright; ca 40 air mi SSE of Gillette.-105.129843.770913751408Sagebrush grassland, Bouteloua gracilis abundant. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8402Peter J. Ebertowski2003819231U.S.A.WyomingCrookThunder Basin National Grassland and Vicinity: Miller Creek, on County Road 68, ca 8 air mi N of Moorcroft; ca 28 air mi E of Gillette.-104.953244.37431268Sagebrush grassland. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8624Peter J. Ebertowski2003825237U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: reservoirs between Weston and Little Powder River, on Forest Road 908, ca 27 air mi NNE of Gillette; ca 32 air mi NW of Moorcroft.-105.31944.643911281146Area of silver sagebrush and crested wheatgrass around reservoir. Phenology: flowering & fruiting.RMRM731873 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.13124Erwin F. Evert198779190U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: along Sweetwater Creek, ca 4-5 mi N of U.S. Hwy 14, 16, and 20.-109.678244.52952042Scree slopes on east side of creek. Phenology: flowering.RMRM619550 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.19587Erwin F. Evert1990714195U.S.A.MontanaCarbonBeartooth Mountains: along east side of Meeteetse Trail Road, ca 5 mi S of Red Lodge.-109.223845.11681798Pinus flexilis woodland with some Douglas fir on limestone derived substrates with Poa cusickii, Eritrichium howardii and Hymenoxys acaulis.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.66518B. E. Nelson2005913256U.S.A.ArizonaCoconinoCoconino National Forest: Skunk Canyon where Forest Road 720 crosses, ca 3.5 air mi S of Flagstaff.-111.639435.145221032118Open ponderosa pine forest on limestone slope. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.21874Erwin F. Evert1991718199U.S.A.MontanaSweet GrassBeartooth Mountains: Gallatin National Forest: Boulder Arch Scenic Area along the Boulder River, ca 21 mi SW of Big Timber.-110.210445.54521585Openings in Dougals fir forest on limestone derived substrates with Elymus spicatus and Stipa comata.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.66602B. E. Nelson2005913256U.S.A.ArizonaCoconinoCoconino National Forest: ridge between Fay and Skunk canyons off Forest Road 720, down to Skunk Canyon, ca 3.5 air mi S of Flagstaff.-111.622335.150320912121Open ponderosa pine forest. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.22843Erwin F. Evert1992612164U.S.A.MontanaStillwaterCa 1/4-1/2 mi S of Cliff Swallow fishing access site, ca 10 mi W of Absarokee.-109.634545.51611432Sagebrush-grassland with Festuca idahoensis, Koeleria macrantha, Zigadenus venenosus, and Artemisia tridentata var. vaseyana.RMRM611502 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.25599Erwin F. Evert1993629180U.S.A.WyomingHot SpringsSoutheastern Absarokas: ridge 1/4-1/2 mi N and W of Little Grass Creek, in foothills ca 20 mi S of Meeteetse.-108.822543.850720732134Rocky sagebrush-grassland and limber pine woodland with Ipomopsis spicata ssp. spicata, Hymenoxys acaulis, Penstemon laricifolius, and Festuca idahoensis.RMRM780399 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.26616Erwin F. Evert199465156U.S.A.MontanaCarbonShupak Pond, ca 6 mi NNW of Belfry.-109.036445.22621189Disturbed sagebrush-grassland S of pond with Erigeron pumilus, Alyssum desertorum, Lappula redowskii, and Bromus tectorum. Phenology: flowering.RMRM781517 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.27212Erwin F. Evert1994618169U.S.A.MontanaMadison[location and coordinates withheld]15241585Dry, rocky, south facing slope with Cercocarpus ledifolius var. ledifolius, Gutierrezia sarothrae, Agropyron spicatum, and Phacelia hastata. Phenology: fruiting.RMRM782550 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.29039Erwin F. Evert1995615166U.S.A.MontanaParkParadise Valley: Gallatin National Forest: former Yankee Jim Campground, ca 13 mi NW of Gardiner.-111.867945.18231585Disturbed, rocky, open Douglas fir forest with Agropyron spicatum, Festuca idahoensis, Allium textile, and Lomatium triternatum. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.30880Erwin F. Evert199665157U.S.A.MontanaStillwaterRidge ca 1/4 mi E of Montana Highway 78, 1 mi NE of Absarokee.-109.428845.53061268Disturbed sagebrush grassland with Allium textile, Agropyron spicatum, and Artemisia frigida.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.67501B. E. Nelson James F. Fowler2005924267U.S.A.ArizonaCoconinoKaibab National Forest: Coconino Plateau: along small canyon leading to Coconino Wash, ca 4 air mi S of South Rim Grand Canyon, ca 8 air mi ESE of Tusayan; ca 55 air mi NNW of Flagstaff.-111.992835.934421822219Open ponderosa pine forest on limestone. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.67506B. E. Nelson James F. Fowler2005925268U.S.A.ArizonaCoconinoKaibab National Forest: Coconino Plateau: Coconino Rim off Coconino Rim or Forest Road 310, ca 5.5 air mi S of South Rim Grand Canyon, ca 12.5 air mi ESE of Tusayan; ca 53 air mi NNW of Flagstaff.-111.912835.928422252268Rim of plateau. Phenology: flowering & fruiting.RMRM818615 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.33211Erwin F. Evert1997622173U.S.A.WyomingHot SpringsOwl Creek Mountains: lower end of the Wind River Canyon, along U.S. Hwy 20/Wyo Hwy 789, 4 mi S of Thermopolis.-108.205843.59081350Weedy, rocky riparian area along the river with Bromus inermis, Asclepias speciosa, and Cirsium arvense. Phenology: fruiting.RMRM820544 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.35053Erwin F. Evert1998612163U.S.A.WyomingHot SpringsBighorn Basin: along Red Spring Draw Road, ca 5 mi S of Wyo Hwy 172, 10 mi ENE of Thermopolis.-108.026543.66281554Sagebrush-grassland with Elymus spicatus, Cryptantha celosoides, and Bromus tectorum. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.69863B. E. Nelson James F. Fowler2006824236U.S.A.ArizonaCoconinoKaibab National Forest: Barney Flat at the intersection of Forest Road 108 and County Road 73, ca 6 air mi S of Williams.-112.157635.16432137Forb meadow and adjacent roadside. Phenology: flowering.RMUSFS476154 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.74Arthur D. Read1912821234U.S.A.ArizonaCoconinoTusayan National Forest: in field at D. Smith.-112.1684935.19292060In field. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1098James F. Fowler C. L. May1993528148U.S.A.UtahSan JuanNatural Bridges National Monument: Slickrock Hanging Garden, White Canyon.1768Hanging garden.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1154James F. Fowler C. L. May1993529149U.S.A.UtahSan JuanNatural Bridges National Monument: Petro II Hanging Garden, White Canyon.1823Hanging garden.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1184James F. Fowler C. L. May1993529149U.S.A.UtahSan JuanNatural Bridges National Monument: Kachina Hanging Garden, White Canyon.1762Hanging garden.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1215James F. Fowler C. L. May1993530150U.S.A.UtahSan JuanNatural Bridges National Monument: Tuwa Hanging Garden, Tuwa Canyon.1871Hanging garden.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1260James F. Fowler C. L. May1993531151U.S.A.UtahSan JuanNatural Bridges National Monument: Fir Hanging Garden, White Canyon.1828Hanging garden.RMRM673718 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2035Laura Welp1994711192U.S.A.WyomingFremontGreat Divide Basin Area: Popo Agie River Drainage: Meadow Gulch and adjacent boulder slopes, ca 10 air mi W of Sweetwater Station; ca 4 air mi NE of Schoettlin Mountain.-108.352242.575619812073East-facing boulder/talus slope; scattered juniper, pine, and sagebrush. Phenology: flowering.RMRM785752 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1941Daniel T. Busemeyer Leland Crane, David M. Ketzner, Mary Ann Feist, Richard L. Larimore,2004615167U.S.A.WyomingWashakieTensleep Preserve, The Nature Conservancy: southwest flank, foothills of the Big Horn Mountains, ca 10 mi E of Ten Sleep, Canyon Creek watershed, bottom of Canyon Creek Canyon. Old Maid Gulch quad.-107.277744.01271637Found growing with Populus angustifolia, Acer negundo, Rosa woodsii, Cornus sericea, Elymus trachycaulus var. andinus, Lappula redowskii, Galium triflorum, Cystopteris fragilis, Corallorhiza striata, C. maculata var. occidentalis, Osmorhiza berteroi, Cirsium undulatum, Woodsia oregana, and Galium boreale. Inflorescence light purple. also Paul B. Marcum, Loy Richard Phillippe Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1547Amy J. Roderick Pamela Foster199773184U.S.A.WyomingFremontUpper North Platte and Laramie River Drainages: E of Agate Flat or BLM Road 2404, ca 15.7 air mi NW of Three Forks Junction; ca 9 air mi NE of Jeffrey City.-107.671442.496619201935Gravelly area at base of granite slopes with scattered limber pine and juniper. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1286Kevin J. Taylor1997613164U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 18.5 air mi WSW of Gunnison.-107.247938.506924392698South-facing sagebrush slope. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1846Kevin J. Taylor1997621172U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3.5 air mi SSE of Paonia Reservoir.-107.321838.895622402286West-facing slope; Colorado blue spruce, Douglas fir, juniper, and oak. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.530Kevin J. Taylor1997526146U.S.A.ColoradoDeltaNorthern Gunnison Basin: ca 3 air mi NNE of Crawford.-107.582538.748918291981Juniper and aspen shrubland (Atriplex). Phenology: flowering & fruiting.RM773179 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5994Kevin J. Taylor199867158U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3/4 air mi NW of southern edge of Paonia Reservoir.-107.35938.954322562301Southeast-facing slope; Quercus, juniper, and Douglas-fir. Phenology: flowering & fruiting.RM773178 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8391Kevin J. Taylor1998714195U.S.A.ColoradoDeltaNorthern Gunnison Basin: ca 5 1/4 air mi S of Paonia.-107.582538.792920732164Juniper, sagebrush, oak and along creek. Phenology: flowering & fruiting.RM776562 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9540Kevin J. Taylor1998725206U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 2 1/4 air mi NNE of Parlin.-106.702338.5362591Around spring; Eleocharis and Salix. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1330Grace M. Kostel200464156U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 7 air mi ESE of Fairburn and 0.5 mi N of County Road 18.-103.075543.660167929960Abandoned gravel pit. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1575Grace M. Kostel200467159U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 22-22.5 air mi NNW of Crawford and 2 mi E of NE Hwy 71 and NE Hwy 2.-103.57583342.99583311121128In alkaline draw and adjacent slopes of clay soils. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1807Grace M. Kostel200468160U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 11 air mi NW of Crawford and 0.5 mi W of Hudson-Meng Bonebed Trail, near Whitehead Creek.-103.58842.85083311581189In drainage and slopes leading to creek in heavy white clay soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1933Grace M. Kostel2004611163U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 8-8.5 air mi NW of Edgemont and 3 mi W of County Road 9.-103.97466743.351511121158Draw bottom. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2004Grace M. Kostel2004611163U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 15 air mi SSW of Edgemont off Forest Road 7012.-103.90833343.101667365381On grassy upland and plant diverse areas of moisture collection, ridge "edge" slumps. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2081Grace M. Kostel2004612164U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 16.5-17 air mi SW of Edgemontand 0.5 mi N of Forest Road 7078.-104.042543.1239751006On rock outcrop of grass upland. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2150Grace M. Kostel2004614166U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 30-31 air mi NW of Crawford and 0.5 mi N of Indian Creek Road.-103.89966742.95733311731189Grass upland. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2195Grace M. Kostel2004614166U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 35-35.5 air mi NW of Crawford and ca 0.5 mi S of Forest Road 931.-103.99066742.952510971128Grass upland. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2246Grace M. Kostel2004614166U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 27.5-28 air mi NW of Crawford.-103.876542.89516711731204On ridge of rockand sand. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2263Grace M. Kostel2004615167U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 20.5-21 air mi NNW of Crawford.-103.62783342.9391158Ridge of sand with plant diverse areas of moisture holding ridge "edge" slumps. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2326Grace M. Kostel2004615167U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 19 air mi SSE of Edgemont and off Forest Road 7076.-103.70833343.032333343On ridge crest. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2357Grace M. Kostel2004621173U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 17 air mi SE of Hermosa and 12 air mi ESE of Fairburn and 0.5 mi E of County Road 19 near French Creek.-102.98283343.646333853914On side slopes and in drainages of creek with sand and gravel soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2474Grace M. Kostel2004621173U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 20.5-21 air mi SSW of Wall and 0.5 mi E of Forest Road 7133.-102.29916743.693762792On east and south faces of revegetated and stabilized sand bluffs. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2724Grace M. Kostel2004625177U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 17-17.5 air mi SE of Hermosa and 1.5-2 mi NNW of Red Shirt and 1-1.5 mi W of SD Hwy 40.-102.90666743.693833853899In draws and on ridge tops. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3212Grace M. Kostel200472184U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.-103.00543.702333853945Rock slopes and buttes of Juniper leading into clay based drainages. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3299Grace M. Kostel200472184U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.-103.00543.702333853945Butte rock slopes and top. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3314Grace M. Kostel200472184U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi WNW of Edgemont; Moss Agate Creek.-104.01383343.35083311281143In side drainage of creek. Side slopes of rock and gravel. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3376Grace M. Kostel200476188U.S.A.NebraskaDawesOglala National Grassland and Vicinity: ca 18.5-19 air mi NNW of Crawford and just S of Forest Road 909.-103.45083342.945511731204In Juniper horizontalis draw of rock, gravel and sand. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3405Grace M. Kostel200476188U.S.A.NebraskaDawesOglala National Grassland and Vicinity: ca 15 mi N of Crawford and on Forest Road 919.-103.42566742.90110971128On ridgetop down to resevoir. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3485Grace M. Kostel200476188U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 10 air mi NW of Crawford and 3/4 mi N of Sand Creek Road.-103.53716742.81833311121143On buttes of clay soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3496Grace M. Kostel2004711193U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 11.5 air mi ESE of Smithwick and 1.5 mi S of County Road 1.-103.007343.2622289On buttes and badlands; soils are typical badland clay. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3548Grace M. Kostel2004711193U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 13.5-14 air mi NE of Smithwick and 0.5 mi E of Black Canyon.-103.03616743.427333975990On Pascopyrum smithii - Nassellus viridula upland. Wildfire site in 2003. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3554Grace M. Kostel2004711193U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 14 mi NNE of Smithwick and immediately S of the Fall River and Custer County lines.-103.06916743.471914929On ridgetop of sand and silt soils. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3706Grace M. Kostel2004715197U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 14.5 air mi NW of Crawford on Hudson-Meng Bison Bonebed Trail, 0.5 mi SW of Toadstool Geologic Park.-103.59216742.85311431189Soils are heavy white clay below with clay sand mix at top of "toadstool" geologic formations. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4115Grace M. Kostel2004719201U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 18.5-19 air mi SSW of Edgemont.-103.90983343.0326671189Shores of reservoir. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4219Grace M. Kostel2004729211U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 8.5 air mi SE of Hermosa in Red Shirt Creek.-102.918543.7125868945In drainage of creek and steep slopes of drainage; soils are rock substrate with clayey silt. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.991Grace M. Kostel2004530151U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: on Forest Road 914, ca. 0.5 mi E of Edgemont Road in bluffs N of roadway.-103.839742.915311891219On buttes in soils of rock and gravel. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6446Grace M. Kostel2005616167U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 6 air mi ESE of Cottonwood.-101.78033343.959833710On gently rolling prairie uplands in soil depressions that have "slumped" down slope, soils are silty loam. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6479Grace M. Kostel2005616167U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 6.5 air mi SE of Cottonwood.-101.78303343.933617728In rolling prairie uplands in soil depressions that have "slumped" down slope. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6803Grace M. Kostel2005618169U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 7.5 air mi SE of Farmingdale.-102.80406743.871317945Rock ledges of bluffs, north aspect, overlooking deep drainage; soils are rock, gravel, and silt eroding into clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7108Grace M. Kostel2005619170U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 8.5-9 air mi SW of Kadoka.-101.67596743.79235723On gently rolling prairie with silt loam soils having a deep clay pan base. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7409Grace M. Kostel2005623174U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Wall.-102.19633343.909317823In typic badlands habitat; soils are deep heavy clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7438Grace M. Kostel2005623174U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 12 air mi SSE of Wall.-102.20471743.8125785In typic badlands habitat; soils are deep heavy clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7480Grace M. Kostel2005624175U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 5 air mi SE of Oelrichs and ca 3 air mi SE of Limestone Butte near Forest Road 7026.-103.14268343.1425831026On rolling prairie uplands dissected by deep drainages; soils are loam to loamy clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7481Grace M. Kostel2005624175U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 5 air mi SE of Oelrichs and ca 3 air mi SE of Limestone Butte near Forest Road 7026.-103.14268343.1425831026On rolling prairie uplands dissected by deep drainages; soils are loam to loamy clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7567Grace M. Kostel2005624175U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 12 air mi ESE of Oelrichs and ca 1.5 air mi due E of County Road 3.-103.02621743.1137331001In rolling prairie uplands of silt and silt loam. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7619Grace M. Kostel2005624175U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 13 air mi SE of Oelrichs immediately adjacent to Forest Road 7023.-103.08208343.0328671068Rolling prairie uplands and hilltops; soils are gravel and silt loam. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7657Grace M. Kostel2005624175U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 11 air mi SSW of Oelrichs and ca 2 air mi due W of SD Hwy 385.-103.2615543.07071097Rolling prairie uplands; silt loam soils. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7966Grace M. Kostel2005629180U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 5.5 air mi SE of Scenic in Big Hollow Creek.-102.50703343.706467838Soils are unstable, gravel and clay streambed. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8003Grace M. Kostel2005629180U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 3 1/2-3 3/4 air mi SSW of Scenic.-102.5667543.73595872In deep-cut stream channel of badlands; soils are clay overlain by gravel. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8238Grace M. Kostel200577188U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Scenic.-102.48578343.713133899914On a ridge in a Yucca glauca plant community, soils are silt loam and sand. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8268Grace M. Kostel200578189U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 1 air mi SSE of Scenic.-102.5505543.767483853884In badlands floodplain, soils are deep heavy white clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8408Grace M. Kostel2005710191U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 4-4.5 air mi SE of Cactus Flats.-101.888543.807883777785Badlands "wall" ridge edge, near a previously altered prairie planted into Agropyron cristatum, soils are silty loam eroding into clay. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8561Grace M. Kostel Don Hazlett2005712193U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 12 air mi ESE of Fairburn and 1/4 mi due S of County Road 18 at French Creek.-103.103243.640883945On north and east facing slopes of creek, soils are rock and gravel. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8664Grace M. Kostel2005715196U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 16 air mi NE of Hermosa and 3/4 mi SE of Thompson Butte.-102.97113343.913417935In rolling prairie uplands with rock strewn vegetated bluffs, soils are silt clay to clay loam. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8716Grace M. Kostel2005716197U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 14 air mi NE of Hermosa.-102.95383343.933633892In prairie stream drainage cut, soils are clay loam and alkaline. Phenology: flowering & fruiting.RMRM940863 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2350Jill E. Larson2005712193U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Sangre de Cristo Range: southern boundary of Valle Vidal Unit via NM Hwy 204, ridgeline above Middle Ponil Creek in Ponil burn area, ca 11 air mi NE of Eagle Nest.-105.106836.66523322621Canyon wall, ridgeline and burned ponderosa pine forest. Phenology: flowering & fruiting.RMRM287808 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1787Gerald B. Ownbey195391244U.S.A.ArizonaCochiseCoronado National Forest: road to Rustlers Park: 11.1 mi SE of intersection with Chiricahua National Monument Hwy.2256Gravelly rock slides; common. Phenology: flowering & fruiting.RMRM940861 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3262Jill E. Larson2005727208U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Kiowa Mountain via Forest Road 110A, ca 5 air mi NW of Las Tablas.-106.111436.591927832987Roadside, rocky summit with Forest Service lookout and mixed conifer forest. Phenology: flowering.RMRM940860 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3623Jill E. Larson200582214U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: rock outcrops around Tres Piedras Ranger District Office at Tres Piedras.-105.972936.65092493Sagebrush flats and granite outcrops with ponderosa pine. Phenology: flowering & fruiting.RMRM940111 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.80476Ronald L. Hartman Jill E. Larson2005517137U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Hondo Canyon along Forest Road 606, SE of NM Hwy 68, up Hondo Canyon Creek 0.6 air mi.-105.710536.292523172576Southwest exposure, rocky slope with ponderosa pine and Douglas fir. Phenology: flowering.RMRM949487 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7131Jill E. Larson2006627178U.S.A.New MexicoTaosCarson National Forest and Vicinity: Picuris Pueblo Indian Reservation: Cerro Blanco, ca 0.5 air mi N of Vadito.-105.679836.197823172423Disturbed area with old roads, roadcuts and dry wash within pinyon/juniper and ponderosa pine forest; near outcrop of sedimentary rock. Phenology: flowering & fruiting.RMRM949463 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8258Jill E. Larson2006714195U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: Chuckwagon Canyon on south side of Forest Road 1950, ca 2 air mi S of Comanche Point and ca 8 air mi NE of Red River.-105.299636.806228042972Old logging roadbeds and logged spruce forest with Populus tremuloides and open areas of Festuca thurberi. Phenology: flowering & fruiting.RMRM949462 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8427Jill E. Larson2006715196U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: along Middle Ponil Creek S toward Greenwood Canyon from Forest Road 1910, ca 13 air mi E of Red River and ca 2 mi N of Forest Boundary.-105.181836.72472591Disturbed areas along road in stream drainage surrounded by ponderosa pine forest on west exposure and spruce/Abies concolor on east exposure. Phenology: flowering & fruiting.RMRM949461 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8457Jill E. Larson2006715196U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: Beatty Lakes and vicinity from Forest Road 1914, ca 15 air mi ENE of Red River.-105.149436.73372591On edge of Ponil burn area in burned ponderosa pine forest. Phenology: flowering.RMRM800740 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1067Luanne Lum2001725206U.S.A.WyomingParkBighorn Basin: along unmarked road NE of Meeteetse Rim and E of Wyo Hwy 120, ca 10 air mi NNW of Meeteetse and 17.5 air mi SSE of Cody.-108.904144.291817311752Sagebrush in sandy soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.136Melanie Arnett199869160U.S.A.ColoradoOurayUncompahgre Basin: ca 1/2 - 3/4 air mi E of Uncompahgre River on County Road 33; ca 3.5 air mi SSE of intersection of Main Street in Ridgway and U.S. Hwy 550.-107.715338.109321792393Brushy drainage and sparse pinyon hillsides. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1774Melanie Arnett1998716197U.S.A.ColoradoGunnisonSouthern Gunnison Basin: Sawatch Range: along Agate Creek near the Agate Creek Campground, ca 3 air mi NE of Sargents; ca 7.2 air mi W of Chipeta Mountain.-106.389438.430426822804Mixed conifer/aspen riparian. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.760Rachel Newton2005622173U.S.A.WyomingAlbanyWetlands and Adjacent Areas: Mortenson Lake, ca 16 mi SW of Laramie.-105.830841.21462103Sandy, dry uplands. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4321Rachel Newton200667158U.S.A.WyomingCampbellWetlands and Adjacent Areas: Belle Fourche River, ca 15 air mi NNE of Wright.-105.3870743.957891384Dry Artemisia scrub hillside. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4862Rachel Newton2006612163U.S.A.WyomingCrookWetlands and Adjacent Areas: Redwater Creek, ca 2 air mi W of Beulah; ca 14 air mi NE of Sundance.-104.1192844.547921067Along moist shaded creek banks and flood plains. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4921Rachel Newton2006612163U.S.A.WyomingCrookWetlands and Adjacent Areas: Oak Creek, ca 14 air mi N of Beulah; ca 25 air mi NE of Sundance.-104.11444.708841072Dry Quercus-Pinus uplands with fine black sand. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4988Rachel Newton2006612163U.S.A.WyomingCrookWetlands and Adjacent Areas: Little Missouri River, ca 22 air mi N of Devils Tower, ca 43 air mi N of Moorcroft.-104.7382444.876591112Dry flood plains. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5498Rachel Newton2006629180U.S.A.WyomingSheridanWetlands and Adjacent Areas: Tongue River, ca 8 air mi SW of Ranchester.-107.3055644.849761249Dry, rocky hillside. Phenology: flowering.RMRM247760 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6746C. L. Porter195578189U.S.A.WyomingGoshenHaystack Range.-104.645542.32981524Dry clayey soil at edge of ponderosa pine forest. The common and chief thistle of the area. Phenology: flowering & fruiting.RMRM255943 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7580C. L. Porter Marjorie W. Porter1958724205U.S.A.WyomingCampbellNear Spotted Horse.-105.838744.70831219On dry hillsides, rollings plains. Occasional single-stemmed plants up to 1 ft. high; flowers purple. Phenology: flowering.RMUSFS476155 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10R. D. Rowley1921916259U.S.A.ArizonaNavajoSitgreaves National Forest: Showlow winter range.-110.0178934.25731829Weed community in deep clay (malpais) soil on a north slope; fairly abundant; widely distributed. Phenology: flowering & fruiting.RMUSFS476156 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.102R. E. Bodley1911616167U.S.A.ArizonaCoconinoCoconino National Forest: 5 mi E of East Cedar.-111.6782935.54181951Open woodland; sparsely scattered; distributed across large areas. Phenology: flowering & fruiting.RMRM806412 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.527Brian Reif2002611162U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Battleship Rock Forest Recreation Site, 2.8 air mi S of La Cueva, following Trail 137 on East Fork Jemez River for 0.7 mi.-106.6455535.82901720592134Roadside. Phenology: flowering & fruiting.RMRM806435 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.75738Ronald L. Hartman2002712193U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 4, ca 1.5 road mi from NM Hwy 126, Dark Canyon trailhead.-106.63178335.85222234Roadside. Phenology: flowering & fruiting.RMRM806434 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.76215Ronald L. Hartman2002721202U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 126, 1.2 road mi from Forest Road 20, Telephone Canyon.-106.74166735.95524392469Grassy valley. Phenology: flowering & fruiting.RMRM806411 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4802Brian Reif200362153U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: on NM Hwy 3 along Pecos River W of Villanueva State Park, 10 air mi SSE of I-25/NM Hwy 3 junction.-105.364635.26961768Roadside corridor with pinyon/juniper woodland on sedimentary slope to north; irrigation ditch and riparian of cottonwood, Russian olive to south. Phenology: flowering & fruiting.RMRM806442 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4988Brian Reif200367158U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 607 on Virgin Mesa, 4 air mi SSW of La Cueva. N35.824 W106.687 SW 0.5 air mi along road to N35.821 W106.694.-106.69435.82125122518A thinned fire break of Pinus ponderosa and P. strobiformis above, current and locust below, and standing slash. Soils of decomposed, fine volcanic ash. Phenology: buds.RMRM806441 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6314Brian Reif200378189U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Hyde Canyon W of Shearer Ranch, 13 air mi due W of Las Vegas.-105.46535.62353Dry basin of ponderosa pine, with Gambels oak below, on coarse feldspar and with patches of exposed bedrock. Phenology: flowering & fruiting.RMRM806440 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7112Brian Reif2003720201U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Pecos River W of Albright Creek, 2.5 air mi NE of Cowles; in vicinity of bridge.-105.64135.8352560Trailside through grassy canyon bottom below south-facing canyon slope of ponderosa pine and thick Gambels oak. Phenology: flowering & fruiting.RMRM806438 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7722Brian Reif200381213U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 102 through Pacheco Canyon, 5 air mi ENE of Tesque.-105.84835.78725152603Roadside and south-facing gravel slope of granite in canyon bottom of ponderosa pine. Phenology: flowering & fruiting.RMRM806436 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8645Brian Reif2003817229U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Valle Largo Trail 248 in vicinity of Rio Mora, 2.5 air mi ENE of Cowles; from meadow slope E on trail to Rio Mora crossing.-105.623435.826726822798East-facing slope with thick Quercus, Cercocarpus, and scattered mixed conifers; metamorphosed sandstone/limestone above; eroding granite forming gravel slope below. Phenology: flowering & fruiting.RMRM804874 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61685B. E. Nelson2004712194U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Glorieta Mesa: Valle Grande on Forest Road 323, ca 4.5-5 air mi S of South San Ysidro; ca 13.5-14 air mi SSE of Pecos.-105.599935.38362286Artemisia frigida/Bouteloua gracilis meadow dominated by forbs. Phenology: flowering.RMRM804879 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10173Brian Reif200487220U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pablo Creek, 12 air mi WSW of Las Vegas.-105.417535.53482134Grassy canyon bottom with Salix and Populus in ponderosa pine forest. Phenology: flowering.RMRM804878 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10175Brian Reif200487220U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pablo Creek, 12 air mi WSW of Las Vegas.-105.417535.53482134Grassy canyon bottom with Salix and Populus in ponderosa pine forest. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2063Robin Jones Clay Lippencott1991713194U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: cliffs on east side of Wind River Canyon, ca 12 air mi SSE of Thermopolis; ca 20 air mi N of Shoshoni.14141768Dry, west-facing hillside and cliffs.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2274Robin Jones1991729210U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: Hot Springs State Park.-108.187243.6516713471365Sagebrush slopes.RMUSFS475932 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.389William H. Moir1974910253U.S.A.ArizonaCochiseCoronado National Forest: Chiricahua Wilderness: Chiricahua Mountains: near Sentinel Peak: plot 381.-109.2417931.81342682Infrequent in Pinus ponderosa, P. strobiformis and Muhlebnbergia virescens habitat. Phenology: flowering & fruiting.RMRM622655 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8255Erwin F. Evert198579190U.S.A.WyomingJohnsonBig Horn Mountains: along South Fork Piney Creek, ca 2 mi SW of Story.-106.937844.555416641737At edges of open Pinus ponderosa forest, understory comprised of mostly Acer glabrum and Crataegus columbiana. Phenology: flowering.RMRM543848 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.33Jan Pollet1989625176U.S.A.WyomingPlatteBetween Fish Creek Road and Cottonwood Creek, 28 road mi NW of Wheatland.-105.194642.29791616Grassland. Phenology: flowering & fruiting.RMRM543847 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.479Jan Pollet1989823235U.S.A.WyomingPlatteAlong Brush Creek, 17 road mi E of Wheatland.-105.108941.83461737Creek banks, dry, some standing water. Phenology: flowering & fruiting.RMRM543846 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.66Jan Pollet1989625176U.S.A.WyomingPlatteBetween Fish Creek Road and Cottonwood Creek, 28 road mi NW of Wheatland.-105.194642.29791616Grassland. Phenology: flowering & fruiting.RMRM764935 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.247Patricia P. Douglas C. A. Popolizio, R. M. Smith1995615166U.S.A.WyomingPlatteCamp Guernsey: ca 1.9 km WSW of Register Cliff Historical Monument, ca 1.6 km S of North Platte River.1372Scattered, grassland to intermittent stream with cliffs and ravines on limestone cap and loam with Juniperus scopulorum, Oenothera albicaulis, Koeleria macrantha, Penstemon erianthus var. erianthus, Bromus, and Poa spp. Phenology: flowering.RMRM712231 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.71443Ronald L. Hartman2001626177U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Cerros del Trasquilar, mountain "9127", immediately NW of intersection of the pipeline and Rito de los Indios.-106.4932535.96816726852782Roadside, meadows, mixed coniferous forests. Phenology: flowering.RMRM712232 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.71443Ronald L. Hartman2001626177U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Cerros del Trasquilar, mountain "9127", immediately NW of intersection of the pipeline and Rito de los Indios.-106.4932535.96816726852782Roadside, meadows, mixed coniferous forests. Phenology: flowering.RMRM681188 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.17055Walter Fertig George Jones199689222U.S.A.WyomingSheridanBig Horn Range: banks of West Fork of the Little Bighorn River; ca 1 mi downstream of Deer Park and confluence of Mann and Pumpkin creeks; ca 1.8 mi S of Montana.-107.693444.97391597South-facing semi-open slopes on north side of canyon in Pinus ponderosa community; soil humus-loam with thick needle duff; understory of Toxicodendron, Apocynum, Balsamorhiza sagitatta, and Juniperus. Phenology: fruiting.RMRM711817 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.73136Ronald L. Hartman2001730211U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Jemez Falls Road to turn south; two track and bushwack to southwest corner of Ranch.-106.61735.82769424392489Ponderosa pine forest with rock outcrops and swales. Phenology: flowering.RMRMRS Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.878Charles P. Pase1957828240U.S.A.South DakotaLawrenceBlack Hills National Forest; Big Hill Range plot; open ridge.1585Phenology: flowering & fruiting.RMRMRS Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8-26-60Herbert W. Graham1960826239U.S.A.ArizonaPimaSanta Catalina Mountains; near Summerhaven; upper Sabino Canyon.2286Phenology: flowering & fruiting.RMRMRS Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8-5-16Herbert W. Graham191685218U.S.A.ArizonaPimaSoldier Canyon; near spring.1310Phenology: flowering & fruiting.RMRM768860 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.78242Ronald L. Hartman2003724205U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Transquilar Peak and east slope.-106.50668335.94243328842958Ponderosa pine above Douglas fir on slope. Phenology: flowering & fruiting.RMRM267015 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.808C. L. Gilly G. W. Parmelee, Stella M. Wilson, and P. G. Coleman1953625176U.S.A.South DakotaJacksonAlong U.S. Hwy 16, ca 3 mi E of Cottonwood.-101.844643.9649716Phenology: flowering.RMUSFS476081 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.878Charles P. Pase1957828240U.S.A.South DakotaLawrenceBlack Hills National Forest: Big Hill Range Plot.-103.932844.40531600On 5% southeast slope; deep sand soil; open grassy ridge in pine with Poa pratensis, Poa compressa, Danthonia spicata, and Carex pennsylvanica. Common. Phenology: flowering & fruiting.RMRM111320 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1482Herman E. Hayward1927627178U.S.A.South DakotaCusterFairburn.-103.218243.68821051Red foothills; grass and sage association; xero-mesophytic. Phenology: flowering & fruiting.RMRM111320 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1552Herman E. Hayward1927627178U.S.A.South DakotaCusterBuffalo Gap.-103.312443.49239751067Red foothills; grass association; xero-mesophytic. Phenology: flowering & fruiting.RMRM111321 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1564Herman E. Hayward1927628179U.S.A.South DakotaFall RiverHot Springs, Hot Brook Creek.-103.509343.451910571140Streamside; elm, willow, and hackberry association; mesophytic. Phenology: flowering.RMRM111321 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1696Herman E. Hayward1927629180U.S.A.South DakotaCusterBlack Hills: Wind Cave.-103.479543.5581250Foothills; grass association; xero-mesophytic. Phenology: flowering & fruiting.RMRM97129 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2472Herman E. Hayward1927728209U.S.A.South DakotaFall River5 mi E of Edgemont.-103.739743.31411152Foothills; south slope; grass association; xero-mesophytic. Phenology: flowering & fruiting.RMRM365377 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9687Hollis Marriott198574185U.S.A.South DakotaCusterJewel Cave National Monument: U.S. Highway 16 between Jewel Cave Road and east boundary.-103.816743.73711676Roadside in ponderosa pine forest. Phenology: flowering.RMRM604536 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.K. A. Fagerstone197464155U.S.A.South DakotaPennington2 mi W of Conata.-102.22543.7212756In a prairie dog town. Scattered occurrence. Phenology: buds.RMUSFS476086 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.504O. E. York192183215U.S.A.South DakotaHardingCuster National Forest: Eagle's Nest Ranger Station pasture, N Cave Hills.-103.502445.8839929Sandy loam; weed vegetation type. Phenology: flowering.RMUSFS476087 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.34Roger R. Kerbs1967627178U.S.A.South DakotaCusterAlong old Fairburn Hwy 1 mi E of Hwy 79.-103.205843.70869751036On 10% slope; west exposure; grassland with Melilotus officinalis, Agropyron smithii, Stipa viridula, Tragopogon dubius, and Poa pratensis. Occasional to scattered; flowers purple. Part 1 of 2.Elev closer to 3400 f (USGS 7.5') G.B. Phenology: vegetative only.RMUSFS476088 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.34Roger R. Kerbs1967627178U.S.A.South DakotaCusterAlong old Fairburn Hwy 1 mi E of Hwy 79.-103.205843.70869751036On 10% slope; west exposure; grassland with Melilotus officinalis, Agropyron smithii, Stipa viridula, Tragopogon dubius, and Poa pratensis. Occasional to scattered; flowers purple. Part 2 of 2.Elev closer to 3400 f (USGS 7.5') G.B. Phenology: flowering & fruiting.RMRM76175 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2708S. S. Visher191183215U.S.A.South DakotaFall RiverPhenology: flowering & fruiting.RMRM70070 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.395S. S. Visher1910723204U.S.A.South DakotaHardingLittle Missouri Valley: 12 mi N of Crook.-103.915945.7025926Steppe. Phenology: flowering.RMRM76479 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.625S. S. Visher1912730212U.S.A.South DakotaPerkinsBixby.-102.561945.1484750Phenology: flowering.RMRM677623 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1448B. A. Packer J. Brondum and T. McGowan199779190U.S.A.WyomingAlbanyLaramie Range: ca 33 air mi NE of Rock River.-105.410842.212420392057Creekside. Phenology: flowering & fruiting.RMRM677624 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.924B. A. Packer J. Brondum and T. McGowan1997626177U.S.A.WyomingAlbanyLaramie Range: Boulder Ridge, ca 14 air mi S of Laramie.-105.583441.09612423Red beds with Cercocarpus grassland. Phenology: flowering & fruiting.RMRM529280 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.85Betsy Smith R. Jones198699252U.S.A.ColoradoGunnison-106.804338.71832619Fine to sandy soil; high, cold, dry prairie. Phenology: flowering & fruiting.RMUSFS475953 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.172Gasper A. Loughridge1934617168U.S.A.ColoradoLa PlataSan Juan National Forest: Hermosa Creek above Dutch.-107.898937.4878225615 degree south slope, dry banks, gravelly clay and loam, Pinus ponderosa timber; with Gilia, Rhus and Poa. Phenology: flowering & fruiting.RMRM526580 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.346E. L. Painter1987610161U.S.A.ColoradoMoffatNorth Branch Red Wash: ca 10 km E of Little Snake River, ca 35 km N of Maybell.-107.998739.29151900On sandy soil with Artemisia, Chrysothamnus, Agropyron, Stipa and Orzyopsis. Phenology: flowering.RMUSFS476080 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.25E. R. Ware1932619171U.S.A.ColoradoGarfieldWhite River National Forest: Glenwood Canyon.1829Level clay at foot of cliff, roadside; with Chrysopsis, Bromus tectorum, Acer. Phenology: flowering & fruiting.RMRM87540 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.224Earl L. Johnston George G. Hedgecock1917620171U.S.A.ColoradoLas AnimasTrinidad: Road to Walsenburg.Phenology: flowering & fruiting.RMRM157716 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.Edmund R. Cross1913831243U.S.A.ColoradoBoulderWard.2804Railroad track. Phenology: flowering & fruiting.RMRM159136 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.Edmund R. Cross1913712193U.S.A.ColoradoDouglasSedalia.1737Dry roadside. Phenology: flowering & fruiting.RMRM313306 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.Edmund R. Cross1913720201U.S.A.ColoradoJeffersonGolden.1737Railroad track. Phenology: flowering & fruiting.RMRM80949 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.487Edwin B. Payson1914628179U.S.A.ColoradoMontroseNaturita.1646Hillside. Annotated by Gerald Ownbey and Yu-Tseng hsi. Phenology: flowering & fruiting.RMRM75659 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.199Ernest P. Walker1912628180U.S.A.ColoradoMontroseParadox.1646Moist creek bottom. Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM75585 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.452Ernest P. Walker1912811224U.S.A.ColoradoSan MiguelNorwood Hill.2134Dry river bottoms. Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM23198 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.A. 140Francis Ramaley1900612163U.S.A.ColoradoBoulderNear Boulder.Phenology: flowering.RMRM677537 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.42027B. E. Nelson1997722203U.S.A.WyomingAlbanyLaramie Range: lower Big Bear Canyon, ca 2.5-3 air mi WNW of South Sawtooth Mountain and 1.5-2 air mi NNE of Blacktail Peak above La Bonte Creek, ca 27-28 air mi SSW of Douglas.-105.624642.397520122097Dry slopes and banks. Phenology: flowering & fruiting.RMRM173233 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1383George E. Osterhout1897624175U.S.A.ColoradoLarimerStove Prairie.Phenology: flowering & fruiting.RMRM159087 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2264George E. Osterhout19009244U.S.A.ColoradoRouttBear River below Steamboat Springs.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM159138 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2481George E. Osterhout1901624175U.S.A.ColoradoBoulderBoulder-105.277540.0161631Phenology: flowering.RMRM157718 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2813George E. Osterhout1903719200U.S.A.ColoradoLarimerEstes Park: Park Hill.Phenology: flowering & fruiting.RMRM170398 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2898George E. Osterhout1904729211U.S.A.ColoradoLarimerHome Post Office.-105.69240.69642286Phenology: flowering & fruiting.RMRM50956 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2898George E. Osterhout1904729211U.S.A.ColoradoLarimerHome Post Office.-105.69240.69642286Phenology: flowering.RMRM170404 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3088George E. Osterhout1905816228U.S.A.ColoradoLarimerThompson Cayon.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159085 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3401George E. Osterhout1906818230U.S.A.ColoradoGarfieldGlenwood Springs.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM157714 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3953George E. Osterhout1909617168U.S.A.ColoradoBentLas Animas.Phenology: flowering & fruiting.RMRM170399 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4014George E. Osterhout1909715196U.S.A.ColoradoYumaWray.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159140 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4161George E. Osterhout190978189U.S.A.ColoradoWeldWindsor.Phenology: flowering & fruiting.RMRM159068 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4502George E. Osterhout1911520140U.S.A.ColoradoDeltaDelta.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM159069 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4565George E. Osterhout1911524144U.S.A.ColoradoGarfieldGlenwood Springs.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM159095 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4590George E. Osterhout1911722203U.S.A.ColoradoDeltaDelta.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159025 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4611George E. Osterhout1911723204U.S.A.ColoradoDeltaPaonia.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159086 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4622George E. Osterhout1911725206U.S.A.ColoradoGarfieldGlenwood Springs.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159027 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4692George E. Osterhout1912623175U.S.A.ColoradoGarfieldGlenwood Springs.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM312733 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4741George E. Osterhout1912716198U.S.A.ColoradoLarimerHorsetooth Mountain.-105.1969440.53982195Phenology: flowering & fruiting.RMRM157697 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4810George E. Osterhout1912823236U.S.A.ColoradoLarimerThompson Canyon.Phenology: fruiting.RMRM159082 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4853George E. Osterhout1912728210U.S.A.ColoradoLarimerHarmony District.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159137 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4906George E. Osterhout1913611162U.S.A.ColoradoSedgwickJulesburg.Phenology: flowering & fruiting.RMRM157713 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4946George E. Osterhout191379190U.S.A.ColoradoRouttHayden.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159023 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4947George E. Osterhout191379190U.S.A.ColoradoRouttHayden.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159048 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5108George E. Osterhout1914624175U.S.A.ColoradoRouttHayden.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM5146 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5146aGeorge E. Osterhout191478189U.S.A.ColoradoSedgwickJulesburg.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM157712 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5161George E. Osterhout1914720201U.S.A.ColoradoLarimerEstes Park.-105.5240.37712286Phenology: flowering & fruiting.RMRM159092 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5271George E. Osterhout1915718199U.S.A.ColoradoGarfieldGlenwood Springs.Phenology: flowering & fruiting.RMRM84276 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5271George E. Osterhout1915718199U.S.A.ColoradoGarfieldGlenwood Springs.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM159024 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5290George E. Osterhout1915721202U.S.A.ColoradoOurayOuray.-107.671438.02252373Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM159026 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7618George E. Osterhout1900625176U.S.A.ColoradoGarfieldRifle.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting.RMRM312734 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.George E. Osterhout1912716198U.S.A.ColoradoLarimerHorsetooth Mountain.-105.1969440.53982195Phenology: flowering & fruiting.RMRM312735 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.George E. Osterhout1912716198U.S.A.ColoradoLarimerHorsetooth Mountain.-105.1969440.53982195Phenology: flowering & fruiting.RMRM262355 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2623Gerald B. Ownbey Yu-tseng Hsi1958815227U.S.A.ColoradoEagleHills W of Wolcott.2134Dry hills: with sagebrush, juniper and rabbitbrush. Phenology: flowering & fruiting.RMRM262356 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2624Gerald B. Ownbey Yu-tseng Hsi1958816228U.S.A.ColoradoPitkin11 mi NW of Aspen.2164Valley, with sagebrush: raw soil at roadside. Phenology: flowering & fruiting.RMRM262302 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2629Gerald B. Ownbey Yu-tseng Hsi1958816228U.S.A.ColoradoGunnison18.5 mi NE of Oliver on road to McClure's Pass.2560Dry hillside, with sagebrush and juniper. Phenology: flowering & fruiting.RMRM159028 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1247Hazel M. Schmoll1924621173U.S.A.ColoradoArchuletaPiedra: S of Chimney Rock Mesa trail via Devil Creek.2134Annotated by Gerald Ownbey and Yu-Tseng hsi. Phenology: flowering & fruiting.RMRM98651 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1247Hazel M. Schmoll1924621173U.S.A.ColoradoArchuletaPiedraBetween shrubs. Annotated by Gerald Ownbey and Yu-Tseng hsi. Phenology: flowering.RMRM175349 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1305Marion Ownbey1937626177U.S.A.ColoradoElbert4 mi NE of Agate.Badly eroded plains. Phenology: flowering & fruiting.RMRM793982 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.208N. E. Hastings C. Bern2005629180U.S.A.ColoradoArapahoeBuckley Air Force Base: south end of transect 845 m E of southwest corner of the installation. 521593E 4392993N to 521977E 4392503N.17021711Rolling shortgrass prairie on silt-like loam to sandy loam; with Opuntia polyacantha, Artemisia frigida, Convolvulus arvensis, Hesperostipa comata, Bouteloua gracilis, Elymus elymoides. Phenology: flowering.RMUSFS476079 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1989Reed C. RollinsU.S.A.ColoradoMontroseNear the Cimarron River.2439Steep slope. Phenology: flowering & fruiting.RMRM293085 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.113Robert C. Gardner197171182U.S.A.ColoradoLarimerUS Hwy 287, 15 mi N of Fort Collins.1829Moist roadside drainage. Phenology: flowering.RMRM293086 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.114Robert C. Gardner197171182U.S.A.ColoradoLarimerRoad to Red Feather Lakes, ca 3 mi W of Forks Cafe.Roadside. Phenology: flowering.RMRM717975 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10893Robert Merril King Robert M. Garvey1999615166U.S.A.ColoradoLarimerAlong County Road 23, east side of Horsetooth Reservoir, ca 5 mi W of Fort Collins.-105.15805640.5602781695Phenology: flowering & fruiting.RMRM283536 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.173Ronald L. Hartman1966721202U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: near The Ruins, 2 mi W of Pueblano Trail Camp.-105.1351936.629192560Phenology: flowering.RMRM299520 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2132Ronald L. Hartman1968626178U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: Cimarron Canyon, 2 mi NW of junction with Turkey Creek Canyon.-105.0084936.532692073Roadcut. Phenology: flowering & fruiting.RMRM299521 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2236Ronald L. Hartman196872184U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: Cimarron Canyon, 2 mi NW of junction with Turkey Creek Canyon.-105.0084936.532692073Roadside. Phenology: flowering.RMRM340163 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.82-440Steve L. O'Kane W. Kelley and J. Riefler1982628179U.S.A.ColoradoRio Blanco2.2 mi NNE of junction of Jessup Gulch and Piceance Creek Road.2255Disturbed site with Bromus and Oryzopsis. Phenology: flowering & fruiting.RMRM568626 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7839Thomas W. Nelson Jane P. Nelson198574185U.S.A.ColoradoLarimerAlong CO Hwy 36, 5 mi from Estes Park.-105.418540.33962439Dry field. Phenology: flowering & fruiting.RMRM737175 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8869Thomas W. Nelson Jane P. Nelson1990729210U.S.A.ColoradoLarimerEast side of CO Hwy 36 ca 5 mi S of Lake Estes.-105.417739.99332378Mixed evergreen forest. Phenology: flowering & fruiting.RMRM78998 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.66W. H. Haas19137182U.S.A.ColoradoMontezumaMesa Verde National Park.Jul-Aug 1913 Phenology: flowering & fruiting.RMRM57413 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1589W. W. Robbins1906618169U.S.A.ColoradoBoulderBluebell Canyon.Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.RMRM580961 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18212William A. Weber1991712193U.S.A.ColoradoBacaS of Walsh, S of Road U.Sandy fields. Sheet 2 of 2. Phenology: flowering & fruiting.RMRM580962 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18212William A. Weber1991712193U.S.A.ColoradoBacaS of Walsh, S of Road U.Sandy fields. Sheet 1 of 2. Phenology: vegetative only.RMRM734226 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18737William A. Weber R. C. Witmann1993711192U.S.A.ColoradoBacaPicture Canyon, Pasture 2A.Phenology: fruiting.RM708442 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2671James P. Vanderhorst1991617168U.S.A.ColoradoEagleFlat Tops/White River Plateau: Colorado River, ca 20 air mi N of Eagle.-106.770139.91192012Terrace alluvium and dry wash, with Yucca, sagebrush, and narrowleaf cottonwood.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2907James P. Vanderhorst1991628179U.S.A.ColoradoRouttFlat Tops/White River Plateau: Beaver Creek, ca 20 air mi SSW of Hayden.-107.410540.27472134South exposure, dry heavy clay, with sagebrush and mountain mahogany.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3336James P. Vanderhorst Carlos Palaci1991715196U.S.A.ColoradoEagleFlat Tops/White River Plateau: Colorado River, ca 18 air mi NNE of Eagle.-106.750839.91192103Dry hills above river, with pinyon pine and juniper.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.25687Ronald L. Hartman1990622173U.S.A.ColoradoMoffatFlat Tops/White River Plateau: Monument Butte, ca 6 air mi SW of Hamilton.-107.662640.302320422210Sandstone and shale outcrop and associated slopes and ridge.RMRM670670 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.38422B. E. Nelson1996710192U.S.A.WyomingSweetwaterSouth-central Wyoming: Washakie Basin: West Flat Top Mountain, ca 30 air mi S of Wamsutter; ca 18 air mi NW of Baggs.-107.925841.214422562262Small draws off the top of the butte. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4542Amy J. Roderick199867158U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: Fremont Canyon along County Road 408, ca 6.8 air mi SW of Alcova.-106.806442.46751707Disturbed gravelly area among sagebrush. Phenology: flowering.RM670671 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2402bBeth Ward1996711193U.S.A.WyomingSweetwaterSouth-central Wyoming: southwestern extent of Joe Hay Rim, ca 6.5 air mi S of Oregon Buttes; ca 40 air mi NNE of Rock Springs.-108.87642.140523042373Sagebrush covered slope. Phenology: flowering.RMRM672386 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5702Beth Ward1997620171U.S.A.WyomingSweetwaterSouth-Central Wyoming: flats and buttes adjacent to Pacific Creek, ca 1 air mi S of Wyo Hwy 28; ca 2 air mi E of confluence of Pacific and Jack Morrow creeks; ca 12.5 air mi NE of Farson.-109.226242.199120732080Butte above creek, sagebrush. Phenology: flowering & fruiting.RMRM672385 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6947Beth Ward1997723204U.S.A.WyomingSweetwater[location and coordinates withheld]20302288Clay draw, mid-level. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5182Jean Wood1996627179U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Little Vulcan Mountain, ca 3.5 air mi W of Curlew.-118.668448.993510361274South facing slopes and ravines; scattered forest interspersed with steppe and rock outcrops. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5489Jean Wood1996630182U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: west of the Kettle River, ca 2.5 air mi SW of Danville.-118.53748.9649945Open slopes. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2826Heather Bradtke2001720201U.S.A.WashingtonGarfieldUmatilla National Forest and Vicinity: Sunset Point near Forest Road 40 and 4027, ca 10 air mi S of Peola.-117.52611146.16472216151824Rocky slope with mixed forbs and shrubs; soil reddish talus; slope 20; aspect southwest. Phenology: fruiting.RMRM656156 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6505aWalter Fertig1990821233U.S.A.WyomingSubletteWyoming/Salt River Ranges: Wyoming Range: ridge between Red Creek and Lime Creek leading to Ramshorn Peak. AlsoS8, 17, and 18.-110.563643.270620732682South-facing sagebrush-grassy slope; claystone talus slope; north-facing Douglas fir forest: north-facing Douglas fir forest. Phenology: flowering.RMRM931810 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10113B. E. Nelson1983629180U.S.A.WyomingHot SpringsBighorn Basin: off Wyo Hwy 120 on Red Ridge, ca 5.5 air mi E of Grass Creek Post Office; ca 26.5 air mi NW of Thermopolis.-108.537543.938891676Clay bottoms.RMRM931809 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.13612B. E. Nelson1987621172U.S.A.WyomingParkBighorn Basin: ca 1.5 mi N of Silvertip Oil Field; ca 19 air mi NW of Powell.-108.933844.99371341Sandy-clay slopes on ridge with sandstone outcrops.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3798Heather Bradtke200183215U.S.A.WashingtonColumbiaUmatilla National Forest and Vicinity: near Little Turkey residence, ca 15 air mi SSE of Dayton.-117.75611146.11333314631707Scab, open slope; soil rubble; slope 0-20; aspect south. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3923Heather Bradtke200183215U.S.A.WashingtonColumbiaUmatilla National Forest and Vicinity: Forest Road 64, ca 2 mi W of Bluewood Ski Area, ca 10 air mi E of Walla Walla.-117.90111146.08777815851707Scab; soil shallow. Phenology: fruiting.RMRM931808 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.15608B. E. Nelson Erik Nelson198869161U.S.A.WyomingParkBighorn Basin: ca 3.5-4 mi NE of Clarks Fork Canyon off Wyo Hwy 292, ca 26 air mi NNW of Cody.-109.252244.87751341Moraine.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1884B. E. Nelson Tom Turner, Mariah Associates1978718199U.S.A.WyomingCarbonHanna Basin: ca 7.5 air mi W of Hanna, ca 28.5 air mi NNE of Rawlins, S of Big Ditch. Arch Mineral Corporation coal lease.-106.711941.86192012Common on north-facing slope in upland sagebrush with Artemisia tridentata and Alyssum.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.21922B. E. Nelson1991731212U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: Bridger Mountains: Ditch Creek Canyon, S and above Buffalo Creek, ca 14 air mi ESE of Thermopolis.-107.966943.58118591920Steep, rocky westerly facing canyon walls.RMRM348673 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5674B. E. Nelson1980617169U.S.A.WyomingWashakieBig Horn Mountains: Leigh Canyon off Tensleep Canyon, ca 9 air mi NE of Ten Sleep.-107.2805644.08531859Stony, open slopes. Phenology: flowering & fruiting.RMRM930311 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5851B. E. Nelson198078190U.S.A.WyomingWashakieBig Horn Mountains: along the Nowater Trail just off the Upper Nowood Road, ca 2.5 air mi SW of Nowood, ca 31.5 air mi S of Ten Sleep.-107.46443.58111707Red sandy slopes.RMRM348672 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6693B. E. Nelson1980720202U.S.A.WyomingJohnsonBig Horn Mountains: along Clear Creek just off U.S. Hwy 16, ca 5.3 air mi WSW of Buffalo.-106.8113944.33141676Stony, dry canyon bottom.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8737B. E. Nelson198276187U.S.A.WyomingWestonPowder River Basin: ridge between Stockade Beaver and Whoopup Creeks, ca 11.5 air mi SSE of Newcastle.-104.130843.70531280Sandstone ridge with scattered ponderosa pine and juniper.RMRM931811 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9849B. E. Nelson Robert S. Kirkpatrick1983623174U.S.A.WyomingHot SpringsBighorn Basin: along Cottonwood Creek, ca 5 air mi W of Hamilton Dome; ca 24.5 air mi WNW of Thermopolis.-108.662243.76641890Stream bottom.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4063Hollis Marriott198375186U.S.A.WyomingCrook[location and coordinates withheld]1158Rocky slopes and ridgetops with scattered pines and junipers.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4415Hollis Marriott1983712193U.S.A.WyomingCrook[location and coordinates withheld]1189Roadcut in grassland.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4617Hollis Marriott1983714195U.S.A.WyomingCrookBlack Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.-104.632844.4763913411402Pine ridge with grassland understory.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4752Hollis Marriott1983721202U.S.A.WyomingCrook[location and coordinates withheld]1310Deciduous thickets in north-trending draw.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7182Hollis Marriott1984626178U.S.A.WyomingWestonBlack Hills: west side of ridge S of Elk Mountain (USFS Road 818) near Mix Spring, ca 13.5 air mi SE of Newcastle.-104.070543.69111463Southeast-facing slope with scattered pines and junipers.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7671Hollis Marriott198476188U.S.A.WyomingCrook[location and coordinates withheld]1310Sagebrush-grassland (Artemisia cana and A. tridentata).RMRM371855 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8403Hollis Marriott198482215U.S.A.WyomingWeston[location and coordinates withheld]1432Grassland in canyon botton, on sandy soil.RMRM387287 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5359June Haines Georgia Haines198584216U.S.A.WyomingFremontSweetwater Rocks, ca 8 air mi ENE of Jeffrey City.-107.671442.496619512073Sagebrush grassland. Phenology: flowering & fruiting.RMRM387288 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5442June Haines Georgia Haines1985810222U.S.A.WyomingFremontGranite Mountain Uplift: S of Dishpan Butte, ca 6 air mi NNW of Sweetwater Station.-108.219242.62922042Sagebrush grassland. Phenology: flowering.RMRM387289 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5591June Haines1985817229U.S.A.WyomingFremontSweetwater Rocks: hill with Frank Triangulation Station on top, ca 7 air mi NE of Jeffrey City.-107.789442.598620122134Drainage around granite boulders. Phenology: flowering.RMRM387290 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6692June Haines1986620171U.S.A.WyomingFremontWind River Basin: Red Canyon Rim, ca 14 air mi SSE of Lander.-108.629842.643918591981Patches of soil in nugget sandstone outcrop.RMRM387291 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6708June Haines1986620171U.S.A.WyomingFremontWind River Basin: Red Canyon Rim, ca 14 air mi SSE of Lander.-108.629842.643918591981Sagebrush-juniper grassland.RMRM387292 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6755June Haines Georgia Haines1986621172U.S.A.WyomingNatronaSweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction.-107.258542.48218652073Yucca-sagebrush grassland just above meadow by creek. Phenology: flowering & fruiting.RMRM387293 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6768June Haines Georgia Haines1986621172U.S.A.WyomingNatronaSweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction.-107.258542.48218652073Wall of small canyon, above creek. Phenology: flowering & fruiting.RMRM387294 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6838June Haines1986627178U.S.A.WyomingFremontTop of Beaver Rim, SW of Devils Gap, ca 6.5 air mi NNW of Sweetwater Station.-108.258342.614621032256Sandy soil under Pinus flexilis. Phenology: flowering.RMRM387295 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6912June Haines Georgia Haines1986720201U.S.A.WyomingFremontBeaver Rim, ca 6 air mi NW of Sweetwater Station.-108.277942.599920362109Limestone slopes. Phenology: flowering.RMRM387296 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6975June Haines Georgia Haines1986727208U.S.A.WyomingFremontGranite Mountain Uplift: edge of Beaver Rim: W of Rock Creek Mountain, ca 17 air mi NNE of Sweetwater Station.-108.062842.775920972152Edge of steep bank. Phenology: flowering.RMRM324354 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2514Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti.1978622173U.S.A.WyomingCampbell[location and coordinates withheld]1158Margins of stream, wet meadows, eroded plains; plains. Phenology: flowering.RMRM324208 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2627Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti.1978623174U.S.A.WyomingCampbell[location and coordinates withheld]1158Ponderosa pine slopes, eroded plains; plains.RMRM324345 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2647Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti.1978624175U.S.A.WyomingCampbellPowder River Basin: along Eightyfive Divide; ca 7 air mi S of Montana, 5 mi E of Hwy 59.-105.2844.90221097Rolling plains and sandstone outcrops; plains. Phenology: flowering.RMRM324351 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2902Keith H. Dueholm1978626177U.S.A.WyomingCampbellPowder River Basin: ca 6.5 air mi SW of Rockypoint.-105.173344.84111219Deep ravine in ponderosa pine covered uplift, slopes; roadside. Phenology: flowering.RMRM324342 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2997Keith H. Dueholm1978626177U.S.A.WyomingCampbellPowder River Basin: ca 2.5 air mi SW of Rockypoint.-105.137544.93111280Rocky slope, ponderosa pine hills, deep ravine; plains. Phenology: flowering.RMRM324357 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3054Keith H. Dueholm1978626177U.S.A.WyomingCampbellPowder River Basin: ca 10.5 air mi NW of Rockypoint.-105.344.975561067Eroded plain, sandstone outcrops; eroded plain. Phenology: flowering.RMRM324432 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3116Keith H. Dueholm1978628179U.S.A.WyomingCampbellPowder River Basin: Fletcher Canyon.-105.997743.61191463Dissected plain and open canyon slopes; canyon bottom. Phenology: flowering.RMRM324434 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3340Keith H. Dueholm Mary Alice Sanguinetti197875186U.S.A.WyomingConverse[location and coordinates withheld]1554Plains, sandstone outcrops, and hard sand along pipeline route; plains. Phenology: flowering & fruiting.RMRM324356 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3410Keith H. Dueholm Mary Alice Sanguinetti197876187U.S.A.WyomingCampbell[location and coordinates withheld]1280Low ditches, edge of plowed field; edge of field. Phenology: flowering & fruiting.RMRM324433 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3512Keith H. Dueholm Mary Alice Sanguinetti197877188U.S.A.WyomingCampbell[location and coordinates withheld]1189Streambank, shaded ravine, gravel slope, highway right-of-way; right-of-way, plains. Phenology: flowering.RMRM324344 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3570Keith H. Dueholm Mary Alice Sanguinetti197878189U.S.A.WyomingCampbell[location and coordinates withheld]1219Eroded uplands, ponderosa pine ridges, ravines, sagebrush plains, open clayey slopes, loose talus; plains, pine slopes. Phenology: flowering.RMRM324350 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3615Keith H. Dueholm Mary Alice Sanguinetti197878189U.S.A.WyomingCampbellPowder River Basin: ca 11 air mi NW of Weston.-105.5427844.72061189Plains, marsh along holding pond, flats, gravel roadside; plains. Phenology: flowering & fruiting.RMRM324339 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3658Keith H. Dueholm Mary Alice Sanguinetti197878189U.S.A.WyomingCampbellPowder River Basin: ca 11 air mi NW of Weston.-105.522544.74971250Rocky slope, clinker outcrops, plains, ravine, wet soil in draw, below holding dam; plains. Phenology: flowering & fruiting.RMRM324340 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3748Keith H. Dueholm Mary Alice Sanguinetti197879190U.S.A.WyomingCampbellPowder River Basin: ca 10 road mi NNW of Gillette.-105.582544.441671310Rolling plains, sandstone uplift, outcrops, sandy ravines, highway right-of-way; plains. Phenology: flowering.RMRM324346 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3877Keith H. Dueholm Mary Alice Sanguinetti1978710191U.S.A.WyomingCampbellPowder River Basin: ca 20 air mi N of Spotted Horse.-105.867544.99751128Pine covered ridges, ravines, loose talus slopes, grassland, slopes; plains, roadside. Phenology: flowering & fruiting.RMRM324343 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4277Keith H. Dueholm Mary Alice Sanguinetti1978715196U.S.A.WyomingCampbell[location and coordinates withheld]1432Plains, draw, eroded slopes, sandy roadcuts; draw. Phenology: flowering.RMRM324348 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4542Keith H. Dueholm1978722203U.S.A.WyomingCampbell[location and coordinates withheld]1432Ponderosa pine covered buttes, steep shale and talus slopes, sagebrush plains at summit, ravines; plains. Phenology: flowering.RMRM324341 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4694Keith H. Dueholm1978723204U.S.A.WyomingCampbellPowder River Basin: ca 4 air mi ENE of Adonis.-105.182544.51861219Sagebrush plains, ponderosa pine slopes, ravines, eroded slopes, creek bottom; slopes.RMRM324431 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5527Keith H. Dueholm197885217U.S.A.WyomingCampbell[location and coordinates withheld]1250Plains, meadows along creek, "permanent" water in stream; plains. Phenology: flowering.RMRM324358 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5699Keith H. Dueholm197888220U.S.A.WyomingCampbell[location and coordinates withheld]1371Rocky hills, plains, holding pond, wet mud along creekbeds, flats, moist grassy ditches; slopes. Phenology: flowering.RMRM324355 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5976Keith H. Dueholm1978811223U.S.A.WyomingSheridan[location and coordinates withheld]1310Plains, flats along dry creekbed; near creekbed. Phenology: fruiting.RMRM333306 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6994Keith H. Dueholm1979618169U.S.A.WyomingNiobraraPowder River Basin: Indian Creek, ca 7 air mi NW of Whitman.-104.241542.92341310On sandy soil of draws along creek; associated with gramma grass. Phenology: flowering.RMRM333301 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7693Keith H. Dueholm197973184U.S.A.WyomingNatronaPowder River Basin: ca 24 air mi N of Natrona.-106.832543.37581646Gently rolling sagebrush plain on red sand (Chugwater Formation), small outcrops; plain. Phenology: flowering.RMRM333302 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8406Keith H. Dueholm1979721202U.S.A.WyomingJohnson[location and coordinates withheld]1402Rolling, hilly plains over scoria base, occasional outcrops, rocky pine slopes; plains. Phenology: flowering.RMRM333305 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8451Keith H. Dueholm1979721202U.S.A.WyomingJohnsonPowder River Basin: east side of Lake De Smet.-106.7336144.47671463Sagebrush plain on clinker (scoria) base, occasional outcrops; plain. Phenology: flowering.RMRM830236 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10088Ronald L. Hartman1979713194U.S.A.WyomingJohnsonPowder River Basin: ca 3 air mi W of Kaycee.-106.703643.70811463Shale slopes with sandstone outcrops and drainages. Phenology: flowering.RMRM348670 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10666Ronald L. Hartman197984216U.S.A.WyomingSheridanBig Horn Mountains: Red Grade Road, ca 5.2 air mi SW of Big Horn.-107.084444.624441981Slopes and ridge; Chugwater red beds and limestone (gypseous?) outcrops. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.15992Ronald L. Hartman1983713194U.S.A.WyomingCrookBlack Hills: East Creek, ca 4 air mi SSW of Mona.-104.4086144.770281219Partly wooded drainage with oak, hawthorn, and ash.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.16465Ronald L. Hartman1983718199U.S.A.WyomingCrookBlack Hills: ridge between Beaver Creek and the Belle Fourche River, ca 5 air mi NNW of Alva.-104.4883344.75531158Sandy ridge with ponderosa pine woodlands and prairies; prairie.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18146Ronald L. Hartman1984713195U.S.A.WyomingCrookBlack Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.-104.222544.304721615Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope.RMRM537367 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.21018Ronald L. Hartman1985718199U.S.A.WyomingParkNorthern Absarokas: Little Bald Ridge and Little Sunlight Creek, 2-3 air mi W of Sunlight Ranger Station.-109.594244.745621032378Limestone talus slopes, ridges, and caprock, stream bottoms with willow and cottonwood, and disturbed roadsides; limestone ridge.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.29384Ronald L. Hartman1991628179U.S.A.WyomingHot SpringsOwl Creek/Bridger Mountains: Bridger Mountains: Red Canyon, Buffalo Creek Road, ca 14 air mi ENE of Thermopolis.-107.946943.579716761707Red beds; grassy slopes and outcrops.RMRM324430 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6922Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978622173U.S.A.WyomingCampbellPowder River Basin: ca 11.5 air mi NNE of Weston.-105.238344.750281189Open slopes and drainage. Phenology: flowering & fruiting.RMRM324361 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7131Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978623174U.S.A.WyomingCampbellPowder River Basin: ca 18 air mi WNW of Rockypoint.-105.46444.96033800Eroded hills with ponderosa pine. Phenology: flowering.RMRM324359 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7203Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978624175U.S.A.WyomingCampbellPowder River Basin: Eighty-five Divide, ca 11 air mi W of Rockypoint.-105.3208344.93141097Hills with sandstone outcrops. Phenology: flowering.RMRM324353 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7523Ronald L. Hartman Mary Alice Sanguinetti1978627178U.S.A.WyomingJohnsonPowder River Basin: ca 22 air mi NNE of Sussex.-106.099243.97331341Low hills and drainage. Phenology: flowering.RMRM348671 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9513Ronald L. Hartman Ann Odasz1979626177U.S.A.WyomingSheridanBig Horn Mountains: Bighorn National Forest: Little Bighorn River Canyon, ca 16 air mi W of Parkman.-107.653344.975815241646Open south exposure. Phenology: flowering.RMRM598816 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.27576B. E. Nelson1993726207U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: along Wyo Hwy 270 between the cemetary and Quarry Road, ca 1.2 air mi ENE of Guernsey.-104.723942.27031341Highway right-of-way and adjacent mixed grass plains. Phenology: flowering.RMRM663595 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.31880B. E. Nelson1994621172U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Cow Creek and the north end of Cow Creek Buttes, ca 15 air mi ENE of Bill; ca 43 air mi NE of Douglas.-104.970843.312613811384Low benches and old stream bars. Phenology: flowering & fruiting.RMRM663609 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.32635B. E. Nelson1994711192U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: along a draw leading into Rawhide Creek ca 1 mi W of Middle Rawhide Butte, ca 11 air mi NW of Jay Em; ca 38.5 air mi NW of Torrington.-104.522442.569915391573Sandy flats with grasses, forbs, and patches of Artemisia cana. Phenology: flowering.RMRM663608 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.33038B. E. Nelson1994718199U.S.A.WyomingNiobraraSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: west end of Cedar Breaks and head of Dumbell Rock Draw, ca 14 air mi SW of Lance Creek; ca 22.5 air mi WNW of Lusk.-104.847442.904215671628Bottom of a draw through badlands. Phenology: flowering.RMRM663607 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.33524B. E. Nelson Tim Chumley and Robbin Romberg199484216U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek ca 3/4 mi W of the mouth of Dater Creek and ca 4 air mi S of Castle Rocks, ca 11 air mi W of La Grange; ca 30 air mi SSW of Torrington.-104.377241.64951463Creek banks and adjacent woodlands and meadows. Phenology: flowering.RMRM663606 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.33544B. E. Nelson Tim Chumley and Robbin Romberg199484216U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek just W of the mouth of Dater Creek and ca 4 air mi S of Castle Rocks, ca 11 air mi W of La Grange; ca 30 air mi SSW of Torrington.-104.368641.65191457Brushy, with scattered trees in stream bottom adjacent to natural hay fields. Phenology: flowering & fruiting.RMRM663605 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.33815B. E. Nelson Tim Chumley and Robbin Romberg1994811223U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Richeau Creek between I-25 and Wyo Hwy 314, ca 3/4 air mi W to 1.5 air mi WSW of Slater; ca 14 air mi SSE of Wheatland.-104.837741.86415301548Sandy banks and flats. Phenology: flowering.RMRM598815 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.38360Ronald L. Hartman1993624175U.S.A.WyomingNatronaSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 3 air mi SSE of Powder River and ca 1 air mi NW of Middle Fork Casper Creek crossing.-106.9772242.9897217951801Sandy plains and white sandstone monuments. Phenology: flowering & fruiting.RMRM599056 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.39125Ronald L. Hartman1993629180U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Warm Springs Hill, ca 7 air mi S of Douglas.-105.391442.656914931554Redbeds with strata of anhydrous gypsum; juniper woodland and grassland. Phenology: flowering & fruiting.RMRM599055 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.39180Ronald L. Hartman1993629180U.S.A.WyomingAlbanySouthern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 3 air mi E of Esterbrook.-105.314242.410316151692Sandy slope and plains with grassland and occasional ponderosa pine. Phenology: flowering & fruiting.RMRM599054 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.39484Ronald L. Hartman199371182U.S.A.WyomingPlatte[location and coordinates withheld]14931524Limestone outcrops and calcareous grasslands with juniper. Phenology: flowering & fruiting.RMRM598814 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.39549Ronald L. Hartman199371182U.S.A.WyomingPlatte[location and coordinates withheld]15241615Sandstone outcrops and sandy slopes; ponderosa pine and grasslands. Phenology: flowering & fruiting.RMRM598813 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.39736Ronald L. Hartman199371182U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 9.5 air mi W of Wheatland.-105.125642.04031463Short-grass prairie and drainage. Phenology: flowering.RMRM598812 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.39743Ronald L. Hartman199374185U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34, ca 4 air mi E of Albany County.-105.213341.8951603Sandy plains with short-grass prairie. Phenology: flowering & fruiting.RMRM830657 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.43912B. E. Nelson1998625176U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: in Road Canyon at the Vallorso site and Bear Canyon Mine site, ca 5.5 air mi SW of Ludlow; ca 10.8 air mi NW of Trinidad.-104.638837.287420672189Meadow in pinyon-juniper-oak woodland. Phenology: flowering & fruiting.RMRM830656 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.43990B. E. Nelson1998624175U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Hatchers Pass on County Road 47.7, ca 4 air mi N of Bon Carbo; ca 12.5 air mi NW of Trinidad.-104.693237.272822432257Sandy soil on roadside and fencerow in pinyon-ponderosa-oak woodland. Phenology: flowering & fruiting.RMRM830655 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.44015B. E. Nelson1998625176U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau; in Sarcillo Canyon on County Road 41.7, ca 4.5 air mi N of Weston; ca 18 air mi W of Trinidad.-104.820237.221702182Meadows with scattered ponderosa pine, pinyon, and oak. Phenology: flowering & fruiting.RMRM827809 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1090Brian Elliott Kenneth Elliott199864155U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Powell Arroyo, on County Road 69.8, NW of Trinidad.-104.529937.21461859Riparian and pinyon-juniper. Phenology: flowering & fruiting.RMRM828982 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1311Brian Elliott1998610161U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Pueblo Reservoir State Park: ca 3.5 road mi W of the west entrance on Colo Hwy 96.-104.892938.26771585Small grade; prairie and pinyon-juniper. Phenology: flowering & fruiting.RMRM382071 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8737B. E. Nelson198276187U.S.A.WyomingWestonPowder River Basin: ridge between Stockade Beaver and Whoopup Creeks, ca 11.5 air mi SSE of Newcastle.-104.130843.70531280Sandstone ridge with scattered ponderosa ponderosa pine and juniper. Phenology: flowering.RMRM371892 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8836B. E. Nelson198277188U.S.A.WyomingWestonBlack Hills: Elk Mountains: at the South Dakota state line, ca 14 air mi SE of Newcastle.-104.050343.69111493Meadows at the base of the ridge. Phenology: flowering & fruiting.RMRM371891 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8868B. E. Nelson198279190U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: Oak Creek drainage and ridge between Oak and Alum creeks, ca 6.5 air mi NNW of Aladdin; ca 23 air mi NNE of Sundance.-104.24544.71581158Dry, grassy ridgetop. Phenology: flowering.RMRM371890 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9005B. E. Nelson1982712193U.S.A.WyomingCrookBlack Hills: Little Missouri River Breaks: ca 14 air mi N of Hulett; ca 33.5 air mi NNW of Sundance.-104.528944.87311219Upland grassland. Phenology: flowering.RMRM371866 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1494Hollis Marriott Dennis Horning1982719200U.S.A.WyomingCrook[location and coordinates withheld]1548Roadside on rocky (Minnekahta limestone) soil. Phenology: fruiting.RMRM827807 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1705Brian Elliott1998613164U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Kerr Gulch, ca 1 mi up road from U.S. Hwy 50, W of Cotopaxi.-105.795838.38982073By mine site; open pinyon-juniper. Phenology: flowering & fruiting.RMRM828981 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1803Brian Elliott1998613164U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Burnt Mill Road, ca 1.5 mi E of junction with County Road 221; ca 5.4 road mi E of Crow Cutoff/3R Road.-104.779538.06431615Juniper-pinyon. Phenology: flowering & fruiting.RMRM827806 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1839Brian Elliott1998616167U.S.A.ColoradoLas Animas[location and coordinates withheld]2073Pinyon-juniper. Phenology: flowering & fruiting.RMRM371858 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3961Hollis Marriott198375186U.S.A.WyomingCrookBlack Hills: between Goldie Road and Elkhorn Creek, ca 6 air mi WNW of Seely.-104.7458344.825561158Sagebrush-grassland. Phenology: flowering.RMRM371865 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4063Hollis Marriott198375186U.S.A.WyomingCrook[location and coordinates withheld]1158Rocky slopes and ridgetops with scattered pines and junipers. ( ) From field notes. Phenology: flowering & fruiting.RMRM371864 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4415Hollis Marriott1983712193U.S.A.WyomingCrook[location and coordinates withheld]1189Roadcut in grassland. Phenology: flowering & fruiting.RMRM371863 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4617Hollis Marriott1983714195U.S.A.WyomingCrookBlack Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.-104.632844.4763913411402Ponderosa pine ridge with grassland understory. ( ) From field notes. Phenology: flowering & fruiting.RMRM371862 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4752Hollis Marriott1983721202U.S.A.WyomingCrook[location and coordinates withheld]1310Deciduous thickets in north-trending draw. Phenology: fruiting.RMRM371861 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5041Hollis Marriott1983726207U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: Taylor Divide, ca 8.5 air mi S of Alva.-104.444344.5841615Grassland. Phenology: flowering.RMRM827805 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1959Brian Elliott1998616167U.S.A.ColoradoLas Animas[location and coordinates withheld]1920Riparian; pinyon-juniper. Phenology: flowering & fruiting.RMRM371860 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5332Hollis Marriott198382214U.S.A.WyomingCrookBlack Hills: Goldie Divide near jct of Goldie and New Haven roads, ca 5 air mi NW of Hulett.-104.6902844.72251371Grassland. Phenology: flowering.RMRM371859 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5494Hollis Marriott198384216U.S.A.WyomingCrookBlack Hills, Coal Divide just N of I-90 (near parking area), ca 9 air mi SW of Sundance.-104.508144.31971463Ponderosa pine-bur oak forest, draw with small spring. Phenology: fruiting.RMRM827804 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2055Brian Elliott1998616167U.S.A.ColoradoLas Animas[location and coordinates withheld]1859East side of road; open prairie with Quercus. Phenology: flowering & fruiting.RMRM371857 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7182Hollis Marriott1984626178U.S.A.WyomingWestonBlack Hills: west side of ridge S of Elk Mountain (USFS Road 818) near Mix Spring, ca 13.5 air mi SE of Newcastle.-104.070543.69111463Southeast-facing slope with scattered pines and junipers. Phenology: flowering.RMRM371877 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7671Hollis Marriott198476188U.S.A.WyomingCrook[location and coordinates withheld]1310Big and silver sagebrush (Artemisia cana and A. tridentata)-grassland.. ( ) From field notes. Phenology: flowering.RMRM371856 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8046Hollis Marriott1984714196U.S.A.WyomingWestonBlack Hills: Summit Ridge near lookout (W of Boles Canyon), ca 7.5 air mi E of Newcastle.-104.045343.850281829Ponderosa pine forest on ridgetop, grassy opening on rocky soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8403Hollis Marriott198482215U.S.A.WyomingWeston[location and coordinates withheld]1432Grassland in canyon botton, on sandy soil. Phenology: fruiting.RMRM371853 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8621Hollis Marriott Dennis Horning198484217U.S.A.WyomingWeston[location and coordinates withheld]1707South-facing slope with ponderosa pine, small grassy opening. Phenology: fruiting.RMRM371854 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8936Hollis Marriott1984810223U.S.A.WyomingWeston[location and coordinates withheld]1783Sparse grassland on rocky soil with slabby outcrops (Minnekahta limestone). Phenology: flowering.RMRM333307 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7081Keith H. Dueholm1979619170U.S.A.WyomingWeston[location and coordinates withheld]1219Sagebrush plain, clay slopes, draws; plains, near road. Phenology: fruiting.RMRM371889 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.15932Ronald L. Hartman1983712193U.S.A.WyomingCrookBlack Hills: ca 7 air mi N of Hulett.-104.610344.784441004200Oak woodlands, sandstone rimrock and sandy lower slopes, prairies, and shaded ravines; prairie. Phenology: flowering & fruiting.RMRM371888 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.15992Ronald L. Hartman1983713194U.S.A.WyomingCrookBlack Hills: East Creek, ca 4 air mi SSW of Mona.-104.4086144.770281219Partly wooded drainage with oak, hawthorn, and ash. Phenology: flowering & fruiting.RMRM371885 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.16203Ronald L. Hartman1983715196U.S.A.WyomingCrookBlack Hills: ca 2 air mi NE of Aladdin.-104.159244.65671097Prairie, sandstone outcrops, and dry drainage; stream banks. Phenology: flowering.RMRM371887 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.16255Ronald L. Hartman1983715196U.S.A.WyomingCrookBlack Hills: ca 2 air mi NE of Aladdin.-104.159244.65671097Prairie, sandstone outcrops, and dry drainage; prairie. Phenology: flowering.RMRM371886 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.16368Ronald L. Hartman1983716197U.S.A.WyomingCrookBlack Hills: ca 3 air mi NNE of Beulah.-104.057844.583061067Prairie and breaks with dry stream; prairie. Phenology: flowering.RMRM371884 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.16465Ronald L. Hartman1983718199U.S.A.WyomingCrookBlack Hills: ridge between Beaver Creek and the Belle Fourche River, ca 5 air mi NNW of Alva.-104.4883344.75531158Sandy ridge with ponderosa pine woodlands and prairie; prairie. Phenology: flowering & fruiting.RMRM371883 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18146Ronald L. Hartman1984713195U.S.A.WyomingCrookBlack Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.-104.222544.304721615Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope. Phenology: flowering.RMRM371882 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18170Ronald L. Hartman1984715197U.S.A.WyomingCrookBlack Hills: Tomcat Creek Oil Field, ca 19 air mi SW of Sundance.-104.7080644.27691310Pinus ponderosa woodland on rolling hills of shale with wet drainages, shale badlands, Sarcobatus vermiculatus flats, and sandy sagebrush Artemisia slopes; woodland. Phenology: flowering & fruiting.RMRM371881 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18245Ronald L. Hartman1984715197U.S.A.WyomingCrookPowder River Basin: just E of U.S. Hwy 14 on Old Sundance Road, 4 air mi NE of Moorcroft.-104.9111144.31561280Rolling sagebrush hills and moist drainages; sagebrush slopes. Phenology: fruiting.RMRM371880 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18294Ronald L. Hartman1984715197U.S.A.WyomingCrookBlack Hills: ca 4 air mi NW of summit of Inyan Kara Mountain.-104.4266744.231111463Sagebrush slopes on red beds with moist drainage. Phenology: flowering.RMRM827803 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2623Brian Elliott1998624175U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: W of I-25 at Exit 2 (Wooten exit).-104.501437.64442158Dirt road west of freeway at small bridge; riparian with Quercus gambellii. Phenology: flowering & fruiting.RMRM371879 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18380Ronald L. Hartman1984715197U.S.A.WyomingCrookBlack Hills: ca 7.5 air mi SE of Sundance.-104.263344.33441493Pinus ponderosa covered ridge and open sandy slopes. Phenology: flowering.RMRM371878 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.18493Ronald L. Hartman1984717199U.S.A.WyomingCrookBlack Hills: lower slopes of Hooker Peak and plains to the NW, 7-8 air mi SSE of Sundance.-104.304444.31971554Plains, Pinus ponderosa wooded slopes, moist open drainages and stock pond; meadow. Phenology: flowering & fruiting.RMRM336122 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.812Hollis Marriott1981716197U.S.A.WyomingCrookDevils Tower National Monument: West Road; ca 105 yds E of boundary.1295On disturbed, well-drained soil with Andropogon gerardii. Common; plant ca 10" tall, branched from base, lavender heads. Phenology: fruiting.RMRM293114 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.175Robert C. Gardner197185217U.S.A.WyomingWestonHwy 16; ca 1 mi NW of Wyoming border.1341Along roadside at bottom of ditch. Phenology: flowering & fruiting.RMRM827802 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2744Brian Elliott1998627178U.S.A.ColoradoLas Animas[location and coordinates withheld]1951Top of hill to east; pinyon-juniper. Phenology: flowering & fruiting.RMRM793830 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.105Patricia P. Douglas N. Hastings199774185U.S.A.WyomingSheridanSheridan Training Area: site ca 1.0 km W of Peak 4244 (338560, 4969020), 2.0 km NE of Peak 4290 (336500, 4967320). 337520E, 4969080N.1300East/west running ridge with slopes (0-30 degrees) on north and south sides in Artemisia grassland in sandy loam to loam, soil series Renohill-Worfka association, with Artemisia tridentata, A. cana, Stipa comata, Aristida purpurea. Scattered; erect, perennial herb; 0.5 m tall; rays lilac. Phenology: flowering & fruiting.RMRM330413 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.340Ann Aldrich197975186U.S.A.WyomingSweetwaterNE end of Cedar Mountain; ca 34.5 air mi SW of Evanston; 11 air mi N of McKinnon.2378Shallow loam in aspen stand with Thlaspi arvense, Galium boreale, Descurainia richardonii and Elymus cinereus. Phenology: flowering.RMRM3701 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1156Aven Nelson1894102275U.S.A.WyomingAlbanyLaramie City Park.Phenology: flowering & fruiting.RMRM10594 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3506Aven Nelson189775186U.S.A.WyomingPine Bluffs.Phenology: flowering & fruiting.RMRM566311 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4576Neil Snow1989720201U.S.A.WyomingAlbanyDirt road leading N along east side of Sheep Mountain, ca 3 mi NNE of Woods Landing.2286Roadside in gravelly soil. Phenology: flowering & fruiting.RMRM293115 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.118Robert C. Gardner197772183U.S.A.WyomingAlbanyHwy 34: 6 mi E of Mortons Pass.2134Loose gravel along roadside. Phenology: flowering & fruiting.RMRM293088 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.120Robert C. Gardner197172183U.S.A.WyomingPlatteLake Guernsey State Park: Hwy 317.1341Along roadside. Phenology: vegetative only.RMRM293089 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.120Robert C. Gardner197172183U.S.A.WyomingPlatteLake Guernsey State Park: Hwy 317.1341Along roadside. Phenology: vegetative only.RMRM293090 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.120Robert C. Gardner197172183U.S.A.WyomingPlatteLake Guernsey State Park: Hwy 317.1341Along roadside. Phenology: flowering & fruiting.RMRM293118 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.178Robert C. Gardner197185217U.S.A.WyomingGoshenU.S. Hwy 85, ca 15 mi S of Torrington,-104.266441.8663Upper flat of road bank. Phenology: flowering & fruiting.RMRM293119 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.178Robert C. Gardner197185217U.S.A.WyomingGoshenU.S. Hwy 85, ca 15 mi S of Torrington,-104.266441.8663Upper flat of road bank. 2n=26 Phenology: vegetative only.RMRM603102 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.14036Walter Fertig199379190U.S.A.WyomingConverseNorthern Laramie Range: ridge on west side of La Prele Creek, ca 1 1/4 mi W of Ayres Natural Bridge Park.1676Sandy draw at base of limestone outcrop. Phenology: flowering & fruiting.RMRM364955 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.127aWilliam C. Edwards1983720201U.S.A.WyomingLaramieCampus of Laramie County Community College, SE of Cheyenne.-104.783141.10641859Short grass prairie. Phenology: flowering & fruiting.RMUSFS882803 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.74998B. E. Nelson2008714196U.S.A.MontanaCarbonPryor Mountains: Custer National Forest: Sage Creek Campground and vicinity on Sage Creek, ca 19 air mi ESE of Bridger.-108.552145.211716821731Southerly-facing slope with Elymus spicatus and occasional limber pine and juniper on limestone. Phenology: flowering.RMRM827801 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4250Brian Elliott1998727208U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Luis Valley: ca 0.5 mi from County Road LL-56 up BLM road to Kelly Creek; W of Villa Grove; S of Poncha Springs. Center of section 9.-105.981338.25162500Prairie. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.71878B. E. Nelson Bernadette Kuhn2007614165U.S.A.ColoradoBacaComanche National Grassland: County Road C above Carrizo Creek, ca 2 air mi W of Little Black Mesa and ca 1 air mi N of Oklahoma, ca 33.5 air mi SW of Springfield.-102.978637.012313471362Sandy-silt grassland flats. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.71928B. E. Nelson Bernadette Kuhn2007614165U.S.A.ColoradoBacaComanche National Grassland: off County Road 8 at the head of Pat Canyon, ca 8 air mi N of Oklahoma and ca 2.5 air mi S of the abandoned Kirkwell Post Office, ca 27 air mi SW of Springfield.-102.948137.11311481Sandy cobblestone draws, abandoned gravel pit, and flats above. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.71962B. E. Nelson Bernadette Kuhn2007614165U.S.A.ColoradoBacaComanche National Grassland: along South Fork Sand Arroyo E of County Road 8, ca 11 air mi SSW of Pritchett; ca 21.5 air mi SW of Springfield.-102.9437.22481487Flats and slopes in rangeland. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.72004B. E. Nelson Bernadette Kuhn2007614165U.S.A.ColoradoBacaComanche National Grassland: at the intersection of County roads 13 and U, ca 8.5-9 air mi S of Pritchett; ca 16.5 air mi SW of Springfield.-102.849437.24951457Sandsage rangeland with large areas of Bromus tectorum and areas of barren sand. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.72403B. E. Nelson Bernadette Kuhn2007621172U.S.A.ColoradoBacaComanche National Grassland: branch of West Ute Canyon, ca 1 1/4 mi E of County Road 24, ca 5.5 air mi SSW of Campo.-102.628437.031812921314Sandy to sandy silt rangeland. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.649Bernadette Kuhn Laura E. Lukus2007530150U.S.A.ColoradoBacaComanche National Grassland: ca 23 air mi SW of Springfield.-102.835337.14871452Shortgrass prairie with Yucca sp., Opuntia sp., and Buchloë dactyloides; grazed. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.716Bernadette Kuhn200766157U.S.A.ColoradoProwersComanche National Grassland: Two Buttes.-102.547137.65691332Steep slopes with Opuntia and Bouteloua. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.842Bernadette Kuhn200767158U.S.A.ColoradoBacaComanche National Grassland: Picture Canyon, ca 29 air mi SSW of Springfield.-102.748637.00731288Along Salix-dominated wet seep. Shortgrass prairie with Yucca sp., Opuntia sp., and Buchloë dactyloides; grazed. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1313Bernadette Kuhn B. E. Nelson2007619170U.S.A.ColoradoOteroComanche National Grassland: ca 29 air mi SW of La Junta.-103.982637.74891507On rocky hills with limestone outcrops. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1345Bernadette Kuhn B. E. Nelson2007619170U.S.A.ColoradoOteroComanche National Grassland: ca 32.5 air mi SW of La Junta.-104.033237.72041571Sandy prairie dominated by Yucca glauca and Plantago patagonica. Phenology: flowering & fruiting.RMRM830665 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4473Brian Elliott1998729210U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: below North Lake Dam, S of Cuchara Pass on Colo Hwy 12.-105.037837.24372591Riparian and Quercus gambellii. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1432Bernadette Kuhn B. E. Nelson2007621172U.S.A.ColoradoBacaComanche National Grassland: North Ute Canyon, 27 air mi S of Springfield.-102.590237.01821261Rocky upland area with Yucca and Opuntia. Phenology: flowering & fruiting.RMRM830664 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4474Brian Elliott1998729210U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: below North Lake Dam, S of Cuchara Pass on Colo Hwy 12.-105.037837.24372591Riparian and Quercus gambellii. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1649Bernadette Kuhn B. E. Nelson2007624175U.S.A.ColoradoBacaComanche National Grassland: Holt Canyon, 27.5 air mi SSW of Springfield.-102.784937.03241296Spring fed pond with Juncus sp., Sagittaria sp. and Salix exigua. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2161Bernadette Kuhn Joe Rankin.200775186U.S.A.ColoradoBacaComanche National Grassland: ca 13 air mi SW of Pritchett.-103.05937.2718975Heavily grazed, shortgrass prairie with lone elm. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.13071Brian Elliott2004515136U.S.A.ColoradoOteroComanche National Grassland: ca 16 mi S of La Junta, ca 5 mi W of Vogel Canyon on bluffs above the junction of Forest Road 350 and Rourke Road.-103.619537.75791463On an east-west ridge with limestone soil; with scattered juniper and Yucca glauca in Oryzopsis-Hilaria grassland. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.85081Ronald L. Hartman Bernadette Kuhn, Laura E. Lukas2007528148U.S.A.ColoradoOteroComanche National Grassland: Vogal Canyon, from trail head to south end at fence line.-103.513137.770213071338Pinyon-juniper canyonland, sandstone; with willow and cottonwood thickets near fence. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.85168Ronald L. Hartman Bernadette Kuhn, Laura E. Lukas2007528148U.S.A.ColoradoOteroComanche National Grassland: Shale Hills, ca 9 air mi SE of Timpas.-103.620837.75761451Shale bluffs, top to bottom. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4324Bernadette Kuhn Joe Rankin2008524145U.S.A.ColoradoOteroComanche National Grassland: ca 20 air mi SSW of La Junta.-103.688937.72661475Shale and limestone outcrops, dominated by Aristida purpurea and Yucca glauca. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4529Bernadette Kuhn2008527148U.S.A.ColoradoOteroComanche National Grassland: along County Road 35, ca 8.5 air mi SE of La Junta.-103.436337.91011362Rocky shale hills with sparse vegetation and scattered Juniperus monosperma. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4784Bernadette Kuhn200866158U.S.A.ColoradoOtero[location and coordinates withheld]1376Roadside and rocky hill. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4968Bernadette Kuhn Catherine Kuhn, Mike Mason200868160U.S.A.ColoradoLas Animas[location and coordinates withheld]1580Along road bank; rocky upland dominated by Aristida, Elymus, and Schedonnardus. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5017Bernadette Kuhn200869161U.S.A.ColoradoOteroComanche National Grassland: Valley View Allotment, ca 7.5 air mi SSE of La Junta.-103.493537.88481341Shortgrass prairie dominated by Yucca, Opuntia, and Bothriochloa. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5044Bernadette Kuhn200869161U.S.A.ColoradoOtero[location and coordinates withheld]1310Dry creek dominated by Tamarix and Iva axillaris. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5075Bernadette Kuhn200869161U.S.A.ColoradoOteroComanche National Grassland: along David Canyon Road, ca 14 air mi S of La Junta.-103.546637.78541375Shale hills, limestone outcrops with Mentzelia and scattered Juniperus. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5178Bernadette Kuhn2008619171U.S.A.ColoradoOtero[location and coordinates withheld]1396Rocky prairie with scattered Juniperus monosperma. Phenology: fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5456Bernadette Kuhn2008621173U.S.A.ColoradoLas Animas[location and coordinates withheld]1430Salix dominated spring, grazed. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5616Bernadette Kuhn Cali Hemenway2008624176U.S.A.ColoradoLas Animas[location and coordinates withheld]1667At grove of Eleagnus and Ulmus with overflowing well. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5708Bernadette Kuhn Cali Hemenway2008624176U.S.A.ColoradoLas Animas[location and coordinates withheld]1799Along creek with Salix trees and Populus; Symphoricarpos thickets along bank. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5966Bernadette Kuhn Joe Rankin2008628180U.S.A.KansasMortonCimarron National Grassland: at gas compressor station, ca 2 air mi S of Wilburton.-101.77437.04711109Sandsage prairie. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6289Bernadette Kuhn200879191U.S.A.ColoradoOteroComanche National Grassland: between North and South Fork Jack Canyon, ca 20 air mi SSW of La Junta.-103.645937.70481392Grazed pasture dominated by Buchloë dactyloides. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7055Bernadette Kuhn2008723205U.S.A.ColoradoBacaComanche National Grassland: ca 5 air mi E of Utleyville; ca 20 air mi WSW of Springfield.-102.941137.27691514Sandsage prairie with large stands of Sporobolus and Andropogon gerardii. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7081Bernadette Kuhn2008723205U.S.A.ColoradoBacaComanche National Grassland: ca 14 air mi SSW of Pritchett.-102.945937.18121499Stock tank, overflowing into open pool, dominated by Amaranthus and Polygonum. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7222Bernadette Kuhn Everett Jackson2008724206U.S.A.ColoradoLas Animas[location and coordinates withheld]1484Lush creek banks dominated by Rhus aromatica, Populus, and Tamarix. Phenology: flowering & fruiting.RMRM840485 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3922Ben Legler Neil Snow200767158U.S.A.New MexicoColfaxVermejo Park Ranch: along east side of I-25, 1/4-3/4 air mi SW of where I-25 crosses the Vermejo River.-104.578166736.486722221816Shortgrass prairie dominated by Bouteloua dactyloides, Hilaria jamesii, and other grasses; area along fenceline was recently disturbed. Uncommon on stony ground; heads pale purple. Phenology: flowering.RMRM840484 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3956Ben Legler Neil Snow200767158U.S.A.New MexicoColfaxVermejo Park Ranch: along banks of Vermejo River immediately downstream from (SE of) I-25.-104.570361136.495416671785Sandy river bottom dominated by recently killed Salix (Tamarix control), with Glycyrrhiza lepidota, Helianthus annuus, Juncus balticus. Heads pale purple; uncommon. Phenology: flowering.RMRM840483 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3986Ben Legler Neil Snow200767158U.S.A.New MexicoColfaxVermejo Park Ranch: along banks of Vermejo River immediately downstream from (SE of) I-25.-104.570361136.495416671785Sandy river bottom dominated by recently killed Salix (Tamarix control), with Glycyrrhiza lepidota, Helianthus annuus, Juncus balticus. Heads light purple; uncommon. Phenology: flowering.RMRM840482 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4158Ben Legler200769160U.S.A.New MexicoColfaxVermejo Park Ranch: at intersection of Van Bremmer Road and U.S. Hwy 64, 8.5 air mi NE of Cimarron.-104.778166736.574305561929Open flat shortgrass prairie. Heads lavender; large clump of plants on roadside. Photographed. Phenology: flowering.RMRM840481 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4381Ben Legler2007615166U.S.A.New MexicoColfaxVermejo Park Ranch: western-most hill in the Cedar Hills, on east side of No. 2 Lake; 9 air mi E of Cimarron.-104.753888936.499166671939Small hill of eroding shale and sandstone capped by conglomerate, with scattered Juniperus monosperma and Cercocarpus montanus, surrounding flats dominated by Cylindropuntia imbricata, Opuntia sp., and short-grass prairie. Heads pale purple; stems scattered around base of hill. Phenology: flowering.RMRM840480 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4442Ben Legler2007615166U.S.A.New MexicoColfaxVermejo Park Ranch: unnamed tributary to Dry Arroyo on notheast side of the Cedar Hills, 11/4 air mi E of Cimarron.-104.728333336.518888891858Dry arroyo, bottom muddy in spots, with Tamarix chinensis, Juncus balticus, grasses. Heads pale purple; scattered in arroyo. Phenology: flowering.RMRM840479 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4754Ben Legler2007621172U.S.A.New MexicoColfaxVermejo Park Ranch: flats at mouth of Crow Canyon, 14.7 air mi SW of Raton.-104.600722236.730638891950Flat grassland, dry soil, with scattered Yucca glauca, Atriplex. Heads light purple; scattered but common. Phenology: flowering.RMRM840478 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4846Ben Legler2007623174U.S.A.New MexicoColfaxVermejo Park Ranch: old strip mine at junctions of York Canyon and Road Canyon, 3.5 air mi SE of Casa Grande.-104.921166736.870055562278Coal strip mine covering many acres, now capped with a thin layer of soil and revegetated primarily with grasses, Atriplex canescens. Heads purple; stems single, scattered. Phenology: flowering.RMRM840477 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5001Ben Legler2007626177U.S.A.ColoradoLas AnimasVermejo Park Ranch: in Lorencito Canyon 0.47 mi N of mouth of Cottonwood Canyon; 1.35 air mi N of Colorado and 21 air mi SW of Trinidad.-104.838333337.011944442270Gently sloping grassland in canyon bottom, with numerous non-native weeds; soil mesic to dry. Flowers pale purple; stems mostly solitary; frequent among grasses and on road side. Phenology: flowering.RMRM840476 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5267Ben Legler2007629180U.S.A.New MexicoColfaxVermejo Park Ranch: along Canadian River 0.13 mi S of (donwstream from) mouth of Jones Canyon; 9 air mi W of Raton.-104.606138936.909277782125Small flowing river with large dry gravel bar and narrow strip of marshy shoreline dominated by Carex spp., Equisetum laevigatum, grasses. Heads light purple; stems solitary, scattered on gravel bar. Phenology: flowering.RMRM840475 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5444Ben Legler200772183U.S.A.New MexicoColfaxVermejo Park Ranch: rocky promitory on north side of Ponil Creek 3.2 air mi E of Cimarron.-104.858055636.513055561943Gently sloping rocky hill on shortgrass prairie, with sparse herbaceous vegetation and scattered Rhus aromatica var. trilobata, Cercocarpus montanus, Cylindropuntia imbricata; dry soil. Heads light purple; stems solitary; occasional. Phenology: flowering & fruiting.RMRM840474 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5489Ben Legler200773184U.S.A.New MexicoColfaxVermejo Park Ranch: at junction of Caliente Canyon and Mercer Canyon; 21 air mi WSW of Raton.-104.804166736.813888892159Dry flats above canyon floor with scattered Pinus edulis, Pinus ponderosa; recently thinned. Heads purple; stems scattered singly. Phenology: flowering & fruiting.RMRM840473 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5849Ben Legler2007712193U.S.A.New MexicoColfaxVermejo Park Ranch: along the Canadian River at mouth of Dargol Canyon; 14 air mi W of Raton.-104.682472236.927861112221Rocky riverbanks and adjacent dry gravel bars, with scattered small Pinus ponderosa saplings, Senecio, Verbascum thapsus, Ratibida columnifera, grasses. Heads purple; uncommon in dry soil. Phenology: flowering.RMRM900104 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6042Ben Legler2007714195U.S.A.New MexicoColfaxVermejo Park Ranch: southeast slope of ridgeline just S of point 9530 on unnamed ridge 2.1 air mi E of Underwood Lakes.-105.173555636.962694442875Open, dry, southeast-facing slope with shrubby Quercus gambelii, scattered conifers, grasses. Heads pale purple; stems scattered singly; occasional. Phenology: flowering.RMRM900103 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6437Ben Legler2007723204U.S.A.New MexicoColfaxVermejo Park Ranch: 0.4 air mi SE of junction of Lookout Canyon and Cerrososo Canyon; 18 air mi NNW of Cimarron.-105.009833336.764361112455Sandy road shoulders of small dirt road leading to oil well pad, with scattered non-native grasses and weeds. Heads pale purple; stems scattered individually; occasional. Phenology: flowering.RMRM900102 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6803Ben Legler2007731212U.S.A.New MexicoColfaxVermejo Park Ranch: flats around small pond on ridgeline between Caliente Canyon and East Fork Chimney Canyon, 8 air mi ENE of Casa Grande and 1.5 air mi S of NM Hwy 555.-104.836861136.898694442509Open Pinus ponderosa woodland with grassy understory dominated by Festuca arizonica, Hymenoxyx richardsonii, shrubby Quercus gambelii. Heads pale purple; stems solitary or in two's; occasional. Phenology: flowering & fruiting.RMRM900101 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6943Ben Legler200781213U.S.A.New MexicoColfaxVermejo Park Ranch: along Rock Creek 1.8 air mi W of west end of Mary's Lake; east base of Ash Mountain.-105.136611136.847083332669Rocky road cut and road shoulder with loose sandy soil, surrounded by open forest of Pseudotsuga menziesii, Pinus flexilis, Abies concolor, shrubby Quercus gambelii. Heads pale purple; scattered. Phenology: flowering.RMRM900100 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7364Ben Legler200789221U.S.A.New MexicoColfaxVermejo Park Ranch: along Crow Canyon Road 6.1 air mi NW of Koehler townsite and 3.2 road mi up canyon from mouth of Little Crow Canyon.-104.698083336.799666672190Open Pinus ponderosa forest on southwest-facing slope, with Hymenoxys richardsonii, Heterotheca villosa, grasses, scattered Quercus ×undulata. Heads pale pinkish-purple; stems scattered individually; occasional. Phenology: flowering & fruiting.RMRM900099 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7898Ben Legler2007817229U.S.A.New MexicoColfaxVermejo Park Ranch: meadows on south side of mud flat 1.5 air mi E of Castle Rock; 5.5 air mi WSW of Casa Grande.-105.074277836.873472222600Dry grassy meadows dominated by Festuca arizonica, Orthocarpus luteus. Heads pale purple; stems solitary; occasional. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.559Brian Elliott1998527147U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: junction of U.S. Hwy 50 and Colo Hwy 67, N of Florence.-105.114238.44091652Prairie-grassland on south side of highway. Phenology: flowering & fruiting.RMRM900098 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8549Ben Legler200867159U.S.A.New MexicoColfaxVermejo Park Ranch: along Cerrososo Canyon Road 2.5 road mi NW of its junction with U.S. Hwy 64; 5.2 air mi NE of Cimarron.-104.8550836.56951975Dry, gravelly roadside among canyon bottom grassland, with Lycium pallidum. Heads light purple; occasional. Specimen GPS: 36.564964, -104.851517. Phenology: flowering.RMRM900097 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8568Ben Legler200867159U.S.A.New MexicoColfaxVermejo Park Ranch: Dry arroyo on northeast side of Cerrososo Creek 1.9 air mi upstream (NW) from NM Hwy 64; 5.5 air mi NE of Cimarron.-104.84036336.5679781975Dry arroyo surrounded by open Pinus edulis woodland. Heads creamy-white; uncommon in creek channel. Specimen GPS: 36.567528, -104.840561. Phenology: flowering.RMRM900096 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9220Ben Legler200873185U.S.A.New MexicoColfaxVermejo Park Ranch: around a watering pond in Juan Baca Canyon 1.7 air mi S of Casa Grande.-104.98536736.8624272325Nearly dry, man made pond with muddy bottom; with Persicaria sp., Juncus bufonius; soil around pond dry, disturbed. Flowers pink-purple; frequent on earthen dam. Specimen GPS: 36.862202, -104.984993. Phenology: flowering.RMRM900095 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9505Ben Legler2008710192U.S.A.New MexicoColfaxVermejo Park Ranch: at mouth of an unnamed canyon on southwest side of Caliente Canyon 1.3 air mi NW of mouth of Ben Thompson Canyon.-104.79052736.8843382278Dry canyon bottom grassland with scattered Pinus ponderosa. Heads pink; uncommon on edge of trees. Specimen GPS: 36.883495, -104.792252. Phenology: flowering.RMRM900094 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9616Ben Legler2008711193U.S.A.New MexicoColfaxVermejo Park Ranch: on east side of Little Vermejo Creek 0.1 air mi S of Colorado.-105.1347536.9936682628Flat mesic meadows with Hesperostipa comata, Oxytropis sericea, and Ratibida columnifera. Heads pale purple; stems solitary; uncommon. Specimen GPS: 36.99305, -105.133789. Phenology: flowering.RMRM900093 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10854Ben Legler2008817230U.S.A.ColoradoLas AnimasVermejo Park Ranch: in Right Hand Fork Martinez Canyon 1/2 air mi up canyon from junction with Left Hand Fork Martinez Canyon; 17.7 air mi WSW of Trinidad.-104.73673237.0346532192Canyon-bottom grassland; deep fine soil, with Ratibida columnifera, Bouteloua gracilis, Verbascum thapsus, Verbena macdougalii, and Chenopodium. Flower heads light pink; stems scattered; occasional. Specimen GPS: 37.034687, -104.736702. Phenology: flowering.RMRM827812 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.737Brian Elliott Kenneth Elliott199863154U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96, E of Wetmore, just over the county line.-105.035738.23941689Prairie after steep grade. Phenology: flowering & fruiting.RMRM827811 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.822Brian Elliott Kenneth Elliott199863154U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Rock Creek Hill, on Colo Hwy 78, SW of Pueblo.-104.816138.13721676Pinyon-juniper; prairie. Phenology: flowering & fruiting.RMRM827810 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.944Brian Elliott Kenneth Elliott199864155U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: at Exit 42 on I-25.-104.692337.52191951Grassland. Phenology: flowering & fruiting.RMRM939274 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.85719Ronald L. Hartman2007615166U.S.A.MontanaStillwaterBeartooth Mountains: Beehive Rock and vicinity, 0.5-1 air mi N of Beehive.-109.720345.485614901714Limestone outcrops with slopes; area burned in forest fire in 2006; very motley mix of natives and exotics. Phenology: fruiting.RMUSFS860970 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.38333B. E. Nelson1996615167U.S.A.WyomingPark[location and coordinates withheld]15001753Stony sagebrush slopes. Phenology: flowering & fruiting.RMRM830654 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.37Charity Hall Brian Jacobs and Alex Morgan199865156U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: ca 3.9 road mi S on Oak Creek Grade Road from Canon City; from ca 0.5-2.5 trail mi past Tanner Trailhead, on and around the trail.-105.243238.368819202560Dominant species: pinyon pine, mountain mahogany, and oak; ponderosa and blue spruce at higher elevations; mainly granite outcrops, soil sandy to gravelly in texture. Phenology: flowering & fruiting.RMRM830653 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.484Charity Hall Brian Jacobs and Alex Morgan1998613164U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: along County Road 201.-104.907638.108118411847Dominant species: Melilotus, Medicago, and Convolvulus; near a small creek. Phenology: flowering & fruiting.RMRM830652 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.524Charity Hall Brian Jacobs and Alex Morgan1998613164U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 6.9 road mi on Red Creek Road from intersection with Colo Hwy 96.-104.852738.19561615Dominant species: Melilotus and thistle. Phenology: flowering & fruiting.RMRM830651 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.556Charity Hall Brian Jacobs and Alex Morgan1998613164U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 3.4 road mi on Siloam Road from Colo Hwy 96.-104.980838.21021737Roadside; dominant species: Melilotus and thistle. Phenology: flowering & fruiting.RMRM823996 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6859Michael Schiebout2005629180U.S.A.New MexicoUnionClayton Lake State Park: 12 air mi NW of Clayton.-103.31388936.5869441574Rocky-sandy soil, from lake to steppe. Phenology: flowering & fruiting.RMUSFS866923 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6811Emily Elliott Brian Elliott200882215U.S.A.MontanaParkAbsaroka Range: Gallatin National Forest: from West Boulder Trailhead, along trail and West Boulder River to West Boulder Meadows, ca 26-27 air mi SW of Big Timber.-110.308245.546616821737Moist aspen grove with Pinus contorta encroachment and a mixed forb understory. Phenology: flowering & fruiting.RMUSFS866924 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6886Emily Elliott Brian Elliott200883216U.S.A.MontanaParkAbsaroka Range: Gallatin National Forest: near West Boulder River, ca 27.5 air mi SW of Big Timber.-110.325545.529617371890Dry, recently burned slope. Phenology: flowering.RMRM830663 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61225Ronald L. Hartman1998615166U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 78, ca 5.5 air mi SW of Pueblo (city center).-104.68838.224814931524Roadcut with calcareous substrate. Phenology: flowering & fruiting.RMRM830662 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61360Ronald L. Hartman1998615166U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 78, ca 5.5 air mi SW of Pueblo (city center).-104.68838.224814931524Roadcut with calcareous substrate. Phenology: flowering & fruiting.RMRM830661 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61427Ronald L. Hartman1998617168U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Rouse Interchange on I-25, on road to Pryor.-104.692337.52191951Grassland and pinyon-juniper. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6743Rick McNeill Matt Voigt2009718199U.S.A.MontanaJudith BasinLewis and Clark National Forest: Little Belt Mountains: Middle Fork Judith River, ca 1/4 mi upstream from Arch Coulee.-110.369546.84131582Open meadow on bench above river, scattered Pseudotsuga menziesii, flat. Phenology: flowering.RMRM830660 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61554Ronald L. Hartman1998617168U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: north end of Trinidad along I-25.-104.493637.218291844Grassland with scattered thickets of pinyon-juniper. Phenology: flowering & fruiting.RMRM830659 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61575Ronald L. Hartman1998619170U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: abandoned rest area on I-25 near Muddy and Greenhorn creeks.-104.724638.04971646Grassland, weedy areas, and pinyon-oak-juniper. Phenology: flowering & fruiting.RMUSFS885640 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.78200B. E. Nelson2009725206U.S.A.MontanaPowder RiverCuster National Forest: Ashland District: vicinity of Cow Creek Camp/ Picnicground on Cow Creek ca 5.5 air mi W of Fort Howes Work Center, ca 25 air mi S Ashland.-106.244745.312911731219Open, southerly-facing slope with scattered ponderosa pine and adjacent open ridge-top. Phenology: flowering.RMUSFS885639 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.78428B. E. Nelson2009730211U.S.A.South DakotaHardingCuster National Forest: North Cave Hills: Browns Pond and vicinity on Campbell Creek, ca 6.5 air mi WSW of Ludlow; ca 15 air mi N of Buffalo.-103.498345.7949884896Weedy slopes and flats above the reservoir. Phenology: flowering.RMUSFS885638 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.78596B. E. Nelson200981213U.S.A.South DakotaHardingCuster National Forest: Slim Buttes: on top and east side of buttes ca 3.5 air mi S of Reva Gap, ca 19.5 air mi SES of Buffalo.-103.172645.481210241097Grass-forb meadow and open ponderosa pine woods. Phenology: flowering.RMUSFS885637 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.78725B. E. Nelson200982214U.S.A.South DakotaHardingCuster National Forest: East Short Pine Hills: vicinity of Spring No. 3 just below and NE of Moreau Peak, ca 18 air mi SSW of Buffalo.-103.707145.346510971146Disturbed areas in a small meadow. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.758Hans Hallman2009620171U.S.A.MontanaRosebudCuster National Forest: Ashland Ranger District: in and around Sawmill Gulch near Jackson Sawmill Spring, ca 1.5 air mi of Poker Jim Butte Lookout and ca 20.5 air mi SSW of Ashland.-106.35845.305611701234Sandy hillside above gulch. Phenology: flowering.RMUSFS885664 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.899Hans Hallman2009620171U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in and around Anderson Reservoir in Stafford Draw along Forest Road 47032, ca 3.5 air mi S of Home Creek School on U.S. Hwy 212, ca 16 air mi ESE of Ashland.-106.002445.513810571079Grassland with partially burned, open ponderosa pine forest. Phenology: flowering.RMUSFS885662 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1356Hans Hallman200972183U.S.A.MontanaCarterCuster National Forest: Chalk Buttes: at Trenk Pass, within ca 0.5 air mi NW of Forest Road 3816, ca 12.5 air mi SW of Ekalaka.-104.686945.731711461207Sparsely wooded ponderosa pine upland. Phenology: flowering.RMUSFS885661 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1431Hans Hallman200972183U.S.A.MontanaCarterCuster National Forest: Chalk Buttes: from the top of the South Chalk Butte, ca 0.5 air mi SE of Alstrom Spring, into Birch Spring Draw, and NE toward Hehn Draw, ca 0.5-2 air mi SW of Trenk Pass, ca 13.5 air mi SW of Ekalaka.-104.71745.717312501259Top of butte along and near edge of rock face, dominated by ponderosa pine and grasses. Phenology: flowering.RMUSFS885660 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1601Hans Hallman200975186U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: on top of and on southern slope of Home Creek Butte off of Suicide Pass Road spur or Forest Road 4777A, ca 4 air mi NW of Camps Pass and ca 16.5 air mi E of Ashland.-105.935145.602713101341Upland woodland dominated by ponderosa pine and grasses; mostly shallow, rocky soils with some rock outcrops. Phenology: flowering.RMUSFS885659 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1700Hans Hallman200976187U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: just S of Forest Road 4785, ca 0.5 air mi SW of Camps Pass and ca 19 air mi ESE of Ashland.-105.901645.547911701219Ponderosa pine and green ash-dominated draw. Phenology: flowering.RMUSFS885658 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1725Hans Hallman200976187U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: just S of Forest Road 4785, ca 0.5 air mi SW of Camps Pass and ca 19 air mi ESE of Ashland.-105.904245.548311521475Grass-dominated meadow. Phenology: flowering & fruiting.RMUSFS885657 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1824Hans Hallman2009710191U.S.A.MontanaCarterCuster National Forest: Long Pines: in and around Brewer Reservoir, just W of Forest Road 3036, ca 13.5 air mi WNW of Camp Crook, SD.-104.22845.604711761225In and around small draw dominated by aspen and surrounded by open ponderosa pine woodland. Phenology: flowering.RMUSFS885656 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1928Hans Hallman2009710191U.S.A.MontanaCarterCuster National Forest: Long Pines: just W of the state line, from Forest Road 3118 to an unnamed reservoir ca 1 air mi N of road, ca 7-8 air mi NNW of Camp Crook, SD.-104.048345.645910061045Historic partial burn with sparse ponderosa pine woodland dominated by grasses. Phenology: flowering.RMUSFS885655 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2076Hans Hallman2009712193U.S.A.South DakotaHardingCuster National Forest: West Short Pine Hills: in and around generally west-facing draws ca 2.5 air mi SSW of JK Butte, ca 10 air mi SSE of Camp Crook.-103.943845.428711091140South-facing grass-dominated slope with scattered ponderosa pine. Phenology: flowering.RMUSFS885654 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2373Hans Hallman2009717198U.S.A.South DakotaHardingCuster National Forest: Slim Buttes: in and around draws SE of junction of North Divide or Forest Road 3125 and Forest Road 3145 in the vicinity of Camp Spring, ca 4.5 air mi S of Reva Gap, ca 19 air mi ESE of Buffalo.-103.191545.470110421054In and near flowing water draw dominated by green ash, grasses, and sedges. Phenology: flowering.RMUSFS885653 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2533Hans Hallman2009717198U.S.A.South DakotaHardingCuster National Forest: Slim Buttes: just SW of Summit Pass on SD Hwy 79, ca 23.5 air mi SE of Buffalo.-103.177345.37131051Open ponderosa pine and grass woodland. Phenology: flowering.RMUSFS885652 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2586Hans Hallman2009722203U.S.A.MontanaRosebudCuster National Forest: Ashland Ranger District: in and around Blacks Pond off of Forest Road 4021, ca 17 air mi S of Ashland.-106.288345.347211121121Grass-dominated slope above reservoir. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2702Hans Hallman2009722203U.S.A.MontanaPowder RiverCa 0.5 air mi E of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi N of Fort Howes and ca 15 air mi SSE of Ashland.-106.16245.39359871003Grass-dominated grazing land. Phenology: flowering.RMUSFS885651 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2752Hans Hallman2009723204U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in and around Seymour Reservoir, ca 0.5 air mi N of Taylor Creek or Forest Road 4127, ca 7 air mi SE of Fort Howes and ca 27 air mi SSE of Ashland.-106.031645.246511341158About reservoir. Phenology: flowering.RMUSFS885650 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4069Hans Hallman2009813225U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: just N of Fifteenmile Creek or Forest Road 4094, ca 1 air mi NNE of Dalzells Spring, ca 21 air mi ESE of Ashland.-105.925145.403711521170Green ash-dominated draw. Phenology: flowering.RMRM828980 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.62369Ronald L. Hartman1998722203U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Picketwire Valley, Colo Hwy 12, ca 1.5 air mi E of Valdez.-104.693237.12721981Roadside. Phenology: flowering & fruiting.RMRM828983 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.62462Ronald L. Hartman1998722203U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Colo Hwy 12 at Romain Canyon, ca 2.3 road mi S of Monument Lake.-105.045837.181925602591Roadside. Phenology: flowering & fruiting.RMRM830658 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.62749Ronald L. Hartman Jim Fowler and Jason Fowler1998724205U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Indian Creek from Indian Creek trailhead, ca 0.8 air mi NW.-105.130137.463626522682Mesic canyon with dry, sandy, volcanic outcrops to north. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5020Hans Hallman2010619170U.S.A.MontanaPowder RiverTo ca 1.5 air mi NW of Moorehead Road, ca 4.5 air mi WSW of Broadus.-105.482145.4081945981Grass and sagebrush-dominated grazing land. Phenology: flowering.RMUSFS885649 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5328Hans Hallman2010626177U.S.A.MontanaRosebudCuster National Forest: Ashland Ranger District: W of Forest Road 4794 in the vicinity of Horse Creek Buttes, ca 6 air mi SE of Poker Jim Butte, ca 23 air mi S of Ashland.-106.279945.271211891213Draw dominated by chokecherry, boxelder, and Symphoricarpos with rock outcrops on margins. Phenology: flowering.RMUSFS885648 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5371Hans Hallman2010628179U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: N of Forest Road 4409, generally between Cabin Creek Spring and Deer Creek Spring, ca 11 air mi ENE of Ashland.-106.059845.6551103Sparse ponderosa pine forest with understory of grasses and Artemisia. Phenology: flowering.RMUSFS883308 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5628Hans Hallman201072183U.S.A.South DakotaHardingCuster National Forest: Slim Buttes: in the vicinity of the head of Red Cross Draw, ca 1 air mi N of Reva Gap, ca 18 air mi E of Buffalo.-103.181845.54710601073Grass, sagebrush, and snowberry-dominated flat. Phenology: flowering.RMUSFS885647 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5726Hans Hallman201074185U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: just N of Forest Road 4410, ca 2 air mi E of Yager Butte, ca 17 air mi ESE of Ashland.-105.980945.461211581182Open ponderosa pine forest with grass and sagebrush-dominated understory and scattered rock outcrops. Phenology: flowering.RMUSFS883309 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6041Hans Hallman2010710191U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of Forest Road 4516, ca 2 air mi W of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi NNW of Fort Howes.-106.195245.387510061042Grass and sagebrush-dominated grazing land. Phenology: flowering.RMUSFS885646 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6118Hans Hallman2010712193U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of Griffin Pass, E of Forest Road 4431, ca 21.5 air mi ENE of Ashland.-105.834545.652611401158Ponderosa pine woodland with grass-dominated understory. Phenology: flowering.RMUSFS885645 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6198Hans Hallman2010713194U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of East Fork Spring, just S of East Fork Otter Creek Road, ca 14 air mi ENE of Ashland.-105.990545.633411461155Moist, grazed draw dominated by green ash, Prunus, and Crataegus. Phenology: flowering.RMUSFS885644 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6233Hans Hallman2010715196U.S.A.MontanaCarterCuster National Forest: Ekalaka Hills: just E of Forest Road 3814, ca 1 air mi ENE of Smith Well, ca 5.5 mi SSW of Ekalaka.-104.566145.815411891225Open ponderosa pine forest in historic burn with thick stands of regenerating pine up to 15 ft. tall; associates include Juniperus, Rhus, and grasses. Phenology: flowering.RMUSFS885643 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6394Hans Hallman2010718199U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of Suicide Pass near Forest Road 4777, ca 1 air mi N of U.S. Hwy 212, ca 18.5 air mi E of Ashland.-105.894245.563412191256Ponderosa pine-dominated woodland. Phenology: flowering.RMUSFS885642 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6587Hans Hallman2010723204U.S.A.South DakotaHardingCuster National Forest: Slim Buttes: in the vicinity of Road Draw Spring No. 2, SE of JB Pass, E of Forest Road 3148, ca 20 air mi SE of Buffalo.-103.21445.407410421060In the vicinity of hardwood draw with green ash, boxelder, and chokecherry. Phenology: flowering.RMUSFS885641 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6806Hans Hallman2010727208U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of Cow Creek, just S of Forest Road 4095, ca 1.5 air mi W of Otter Creek Road or Mont Hwy 484, ca 2 air mi WSW of Fort Howes.-106.184845.294310361060Flowing water draw with cottonwood, green ash, Juncus, and Salix. Phenology: flowering.RMRM830178 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10730Brian Elliott Elizabeth mark199989221U.S.A.ColoradoLas Animas[location and coordinates withheld]2210Pinus ponderosa, riparian. Phenology: flowering & fruiting.RMUSFS476083 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.67C. H. Hurst1913719200U.S.A.MontanaAbsaroka National Foreset.1829West slope; sandy soil; flat with adders tongue, golden seal, death camas, geranium. Phenology: flowering & fruiting.RMUSFS476082 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.R-16H. R. Richards1921731212U.S.A.MontanaMissoula National Forest.1829Phenology: flowering.RMRM159608 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.495L. M. Umbach1903723204U.S.A.MontanaGlacierMidvale (now East Glacier Park).Hills. Phenology: fruiting.RMUSFS476084 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.83Orville Sparrow1934722203U.S.A.MontanaJeffersonDeerlodge National Forest.1463Gravelly soil. Phenology: flowering.RMUSFS476085 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61Charles Fleming1911718199U.S.A.MontanaDeerlodge National Forest.1905Sandy loam; open dry rocky and well drained areas in full sunshine. Phenology: flowering.RMRM287806 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2900Gerald B. Ownbey Yu-Tseng Hsi1960727209U.S.A.MontanaLake4.5 mi NW of PolsonIn prairie. Common. Phenology: flowering.RMRM122337 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.J. W. Blankinship1901510130U.S.A.MontanaGallatinBozeman.Phenology: vegetative only.RMRM262345 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2663Gerald B. Ownbey1958831243U.S.A.MontanaMineral7.6 mi W of Alberton, Hwy 10.914Hillsides, ponderosa pine zone. Common; Flowers pale lavender to white. Phenology: fruiting.RMRM355267 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.725Ellen Collins1983613164U.S.A.MontanaCarbonYellowtail Reservoir, ca 3/4 mi upstream from Layout Creek.1115Rock amphitheater. Phenology: flowering.RMRM248224 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.55336W. E. Booth1955626177U.S.A.MontanaWheatlandAbout 3 mi NW of Shawmut.In bunchgrass along road. Phenology: flowering.RMRM15765 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.J. M. Bates1898718199U.S.A.NebraskaO'neill.Hand written label not legible. Phenology: flowering.RMRM257777 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2495Gerald B. Ownbey Yu-tseng Hsi1957815227U.S.A.NebraskaBrownHwy 20, 8.3 mi W of Ainsworth.In prairie. Common. Phenology: flowering & fruiting.RMRM293087 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.171R. Gardner197183215U.S.A.NebraskaDeuelHwy 30, ca 2 mi E of Chappell.Along roadside and scattered into a field. Phenology: fruiting.RMRM223375 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.Harry Hapeman193269161U.S.A.NebraskaFranklin.Phenology: flowering & fruiting.RMRM604535 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6793Neil Hotchkiss1932713195U.S.A.North DakotaWardDes Lacs National Wildlife Refuge: west side of upper Des Lacs Lake, 3.5 mi NNW of Kenmare.Prairie. Phenology: flowering & fruiting.RMRM154028 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.O. A. Stevens1934815227U.S.A.North DakotaCassFargo.Prairie roadside. Phenology: fruiting.RMRM68573 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.Tom A. Williams1892828241U.S.A.South DakotaBrookingsVicinity of Brookings.Phenology: flowering.RMRM15764 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.J. M. Bates1898718199U.S.A.NebraskaO'neill.Phenology: flowering & fruiting.RMRM257715 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2503Gerald B. Ownbey Yu-Tseng Hsi1957816228U.S.A.NebraskaBox ButteHwy 2, 21.8 mi S of Crawford.On prairie between limestone hills; growing with Cirsium ochrocentrum and Cirsium undulatum. Phenology: flowering.RMRM253101 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.s.n.J. M. Bates1912711193U.S.A.NebraskaWebsterRed Cloud.Phenology: fruiting.RMRM264931 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8776C. L. Porter Marjorie W. Porter1961719200U.S.A.NebraskaDawes20 mi S of Chadron.-102.9696542.559511219Rolling grassland sandhills. Phenology: flowering & fruiting.RMRM257716 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2491Gerald B. Ownbey Yu-tseng Hsi1957815227U.S.A.NebraskaHoltHwy 20, 5.7 mi W of O'Neill.Flat prairie, pasture by roadside. Common; plants to 30" tall, perennial. Phenology: flowering & fruiting.RMRM832019 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.5839Brian Elliott1999521141U.S.A.ColoradoLas Animas[location and coordinates withheld]1920Rocky bluffs, Pinyon-Juniper, also Quercus. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.420Joseph L. M. Charboneau2010624175U.S.A.MontanaValleyOn Ridge Road, on ridge above Tony Coulee, ca 2.5 air mi SW of Finn Reservoir, ca 36 air mi SW of Glasgow.-107.25947.91868954Sandy roadside. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.687Joseph L. M. Charboneau2010630181U.S.A.MontanaPhillipsOn North Frenchman Road, on ridge above Steelman Coulee, ca 8.5 air mi NE of Gray Reservoir, ca 37.5 air mi N of Saco; ca 51 air mi NNE of Malta.-107.350148.9904804865Grasslands on loamy soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.869Joseph L. M. Charboneau2010630181U.S.A.MontanaPhillipsW of U.S. Hwy 191 on Fanny Hill, ca 2 air mi NNW of the confluence of Cottonwood Creek and the Milk River, ca 16 air mi NNE of Malta.-107.772948.5684756798Roadside. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1069Joseph L. M. Charboneau201075186U.S.A.MontanaValleyW of Larb Creek Road, in Black Coulee and ridge to the N, ca 3 air mi NW of Korman Reservoir, ca 36 air mi WSW of Glasgow.-107.377548.0799753786Sagebrush-grasslands on clayey soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.988Joseph L. M. Charboneau201075186U.S.A.MontanaPhillipsE of Harb Road, in Guston Coulee and on ridge to the N, ca 4.5 air mi SW of Regal Springs, ca 17 air mi ESE of Malta.-107.539648.2523704731Loamy coulee bottom. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1367Joseph L. M. Charboneau201078189U.S.A.MontanaValleyJust N of Rock Creek Dam Road, ca 0.5 air mi W of Rock Creek, ca 5.5 air mi NNE of Hinsdale.-107.048548.4675685701Roadside. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1694Joseph L. M. Charboneau2010715196U.S.A.MontanaPhillipsE of North Dodson Road, ca 11 air mi SW of Hubert Hill, ca 23.5 air mi NW of Malta.-108.253448.5766862868Roadside slopes. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1737Joseph L. M. Charboneau2010715196U.S.A.MontanaPhillipsAssiniboine Creek, W of Assiniboine Road, ca 8 air mi WNW of the confluence of Assiniboine Creek with the Milk River, ca 10 air mi NNW of Malta.-107.976148.4826762792Grassland valley. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2005Joseph L. M. Charboneau2010722203U.S.A.MontanaBlaineW of Mont Hwy 241, ca 2 air mi SSW of the Turner Port of Entry, ca 10.5 air mi NW of Turner; ca 33 air mi NNE of Harlem.-108.410748.9698914932Grasslands on glaciated hills of clay soil with dry potholes. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2019Joseph L. M. Charboneau2010722203U.S.A.MontanaPhillipsN of Sunnyslope Road, ca 7 air mi WSW of the Morgan Port of Entry, ca 12 air mi NNW of Loring; ca 42 air mi NNW of Malta.-107.964248.9521862868Grasslands on clay soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2242Joseph L. M. Charboneau B. E. Nelson2010725206U.S.A.MontanaPhillipsUpper Missouri River Breaks National Monument: at the end of Winter Ridge Road above and W of Winter Creek, ca 15 air mi SW of Hays; ca 61 air mi SW of Malta.-108.878547.8067878945Sandy grassland flats and hilltops. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3566Joseph L. M. Charboneau2010821233U.S.A.MontanaPhillipsLittle Rocky Mountains: along road between Camp Creek and Beaver Creek, ca 0.5 air mi N of top of Old Scraggy Peak, ca 2 air mi N of Zortman; ca 41.5 air mi SW of Malta.-108.525147.944114571490Roadside. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3722Joseph L. M. Charboneau2010822234U.S.A.MontanaPhillipsReservoir No. 161, S of U.S. Hwy 191 and W of Rudolph Valley Road, ca 2.5 air mi W of Partnership Reservoir, ca 17 air mi SW of Malta.-108.084548.1641777780Raised levee abutting dry canal. Phenology: flowering & fruiting.RMRM832018 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6396Brian Elliott Elizabeth Mark199963154U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: up Five Point Gulch, ca 1.5 mi E of Texas Creek; W of Pueblo on U.S. Hwy 50.-105.579138.4272134Canyon and west side of ridge in pinyon-juniper. Phenology: buds.RMRM832017 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6514Brian Elliott Elizabeth Mark199966157U.S.A.ColoradoHuerfano[location and coordinates withheld]1935Pinyon-juniper/grassland transition. Phenology: flowering & fruiting.RMRM832016 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6774Brian Elliott Elizabeth Mark199969160U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Rio Grande National Forest: mouth of North Crestone Creek Canyon, ca 1 air mi NE of Crestone.-105.699938.01882560Pinyon-juniper. Phenology: flowering.RMRM832015 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6965Brian Elliott Elizabeth Mark1999612163U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: W of Castle Rock Reservoir, ca 2 air mi S of Walsenburg on County Road 330.-104.984237.59481920Bouteloua grassland. Phenology: flowering & fruiting.RMRM832014 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7003Brian Elliott Elizabeth Mark1999612163U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Black Hawk State Trust Lands off County Road 312, ca 10 air mi S of Walsenberg.-104.728837.47822073Pinyon-juniper-Quercus forest. Phenology: flowering.RMRM832013 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7043Brian Elliott Elizabeth Mark1999612163U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 2 air mi W of Branson on County Road 6.8.-103.967637.02531829Along the railroad right-of-way in pinyon-juniper-Quercus forest. Phenology: flowering.RMRM832012 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7067Brian Elliott Elizabeth Mark1999614165U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 17 air mi SW of Pueblo on County Road 221.-104.834438.06431725Grassland. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6939Amy J. Roderick1998720201U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Seminoe Mountains: drainage W of BLM Road 3108, ca 1.6 air mi NE of Kortes Dam.-106.851242.18071981Creek through cottonwood and ponderosa pine. Phenology: flowering & fruiting.RMRM832011 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7446Brian Elliott Elizabeth Mark1999618169U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Bosque de Oso Wildlife Area, Torres Canyon, SW of Weston.-104.891737.09582256Riparian with Quercus. Phenology: flowering.RMRM906941 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.10667Robert D. Dorn2010714195U.S.A.WyomingSweetwaterCedar Mountain, northeast end.-109.92541.1952317Open juniper woodland with Artemisia tridentata and Bromus tectorum. Flowers lavender. Phenology: flowering & fruiting.RMUSFS857370 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3323James F. Fowler2003718199U.S.A.ArizonaCoconinoCoconino National Forest: Buck Mountain Flats, ca 6 mi S of Happy Jack Ranger Station.-111.391834.66252134Ponderosa pine forest. IMAX control. Phenology: flowering & fruiting.RMRM827814 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4098bBrian Elliott1998724205U.S.A.ColoradoCusterWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: along Forest Road 198 from Luthern Camp to Balman Reservoir, NW of Westcliffe.-105.66638.265425602865Mixed conifer and Quercus gambellii. Phenology: flowering & fruiting.RMRM832010 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8241Brian Elliott Elizabeth Mark199973184U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: from Hayden Campground up toward Hayden Pass, ca 9 air mi S of Howard.-105.832938.32072469Pinus ponderosa, Quercus gambellii, Pseudotsuga, and Abies concolor. Phenology: flowering & fruiting.RMRM827808 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1311BBrian Elliott1998610161U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Pueblo Reservoir State Park: ca 3.5 road mi W of the west entrance on Colo Hwy 96.-104.892938.26771585Small grade; prairie and pinyon-juniper. Phenology: flowering & fruiting.RMRM832009 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8616Brian Elliott Elizabeth Mark199979190U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96 at the junction of Siloam Road, ca 6 air mi E of Wetmore.-104.980838.2541661Roadside and grassland. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.82443B. E. Nelson2011626177U.S.A.MontanaValleyAt the end of the Montfort Road 2.5-3 air mi S of Vandalia; ca 10 air mi SE of Hinsdale.-106.916348.3141689716Stony slopes and tops. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6074Joseph L. M. Charboneau2011628179U.S.A.MontanaPhillipsCharles M. Russell National Wildlife Refuge: CK Ridge, W of Refuge Road 206, ca 10 air mi ESE of Taint Reservoir, ca 24 air mi SE of Zortman; ca 52 air mi SSW of Malta.-108.191447.6616804884Open, south-facing slopes. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6355Joseph L. M. Charboneau2011630181U.S.A.MontanaPhillipsLarb Hills (North): N of Cottonwood Creek, ca 4 air mi S of Bauer Reservoir, ca 13 air mi SW of Saco; ca 17.5 air mi ESE of Malta.-107.508448.3002756807Silver sagebrush-grasslands on loamy soil on rolling hills with swales. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6455Joseph L. M. Charboneau2011630181U.S.A.MontanaPhillipsLarb Hills (North): E of Lower Harb Road, ca 1.5 air mi E of Beaver Creek, ca 15 air mi SW of Saco; ca 15.5 air mi ESE of Malta.-107.559148.3039710762Rolling sagebrush-grasslands on loamy soil with slopes and swales. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6663Joseph L. M. Charboneau201173184U.S.A.MontanaValleyUhlan Coulee, ca 2.5 air mi W of Porcupine Creek, ca 23 air mi N of Fort Peck; ca 12 air mi NE of Glasgow.-106.450448.3321777823Grasslands on hills with slopes and swales on loamy soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6800Joseph L. M. Charboneau201175186U.S.A.MontanaPhillipsSW of Martin Lake, N of Turner Cutacross Road, ca 4 air mi W of Loring; ca 15 air mi WNW of Whitewater; ca 30 air mi NNW of Malta.-107.948248.7898850853Grasslands with occasional silver sagebrush on loamy soil. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7011Joseph L. M. Charboneau201177188U.S.A.MontanaValleyS of Tiger Butte Road, ca 3 air mi SSE of Tiger Butte, ca 7 air mi NNW of Fort Peck; ca 9.5 air mi SE of Glasgow.-106.504248.0986670673Grasslands with fringed sage on sandy soil with swales. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7326Joseph L. M. Charboneau2011711192U.S.A.MontanaPhillipsKorsbeck Waterfowl Production Area: W of Stage Road, ca 8 air mi N of Ester Lake, ca 24 air mi NNE of Zortman; ca 21.5 air mi SW of Malta.-108.270648.2154789792Grasslands on loamy soil with occasional silver sagebrush, alkaline areas, and large patches of crested wheatgrass, yellow sweetclover, and alfalfa. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.7460Joseph L. M. Charboneau2011711192U.S.A.MontanaPhillipsMatador Ranch: Coburn Butte and prairie to the E, ca 8.5 air mi WSW of Veseth Reservoir, ca 8.5 air mi ESE of Zortman; ca 40 air mi SSW of Malta.-108.351847.89339541146Grasslands at base of butte with sandy soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8172Joseph L. M. Charboneau2011723204U.S.A.MontanaPhillipsLittle Rocky Mountains: E of Lodgepole Creek, ca 1 1/4 air mi N of Green Mountain, ca 4.5 air mi NNW of Zortman; ca 42 air mi SW of Malta.-108.552147.970112741350South-facing slopes with ponderosa pine forest and open meadows. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8260Joseph L. M. Charboneau2011723204U.S.A.MontanaPhillipsLittle Rocky Mountains: Emerson Creek, ca 2.5 air mi WNW of Beaver Mountain, ca 6 air mi NNE of Landusky; ca 43 air mi SW of Malta.-108.575247.976612681393South-facing slope with open areas and ponderosa pine forest. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8460Joseph L. M. Charboneau2011731212U.S.A.MontanaPhillipsBowdoin National Wildlife Refuge: along Refuge Tour Road, near Black Coulee Pond, ca 6 air mi NW of Le Noir Reservoir, ca 3.5 air mi E of the Milk River, ca 7 air mi ENE of Malta.-107.735248.3844682689Grasslands with scattered silver sagebrush on loamy soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8624Joseph L. M. Charboneau201182214U.S.A.MontanaValleyCharles M. Russell National Wildlife Refuge: Cut Throat Coulee at terminus of Refuge Road 325, ca 4.5 air mi N of Bonetrail Boat Ramp, ca 44 air mi WSW of Fort Peck; ca 43 air mi SW of Glasgow.-107.254247.7396829890Grasslands with scattered ponderosa pine and juniper on sandy soil. Phenology: flowering & fruiting.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8768Joseph L. M. Charboneau201184216U.S.A.MontanaValleyGlasgow Base Ponds, W of Mont Hwy 24, ca 4.5 air mi W of Porcupine Creek, ca 3.5 air mi NW of St. Marie; ca 18 air mi N of Glasgow.-106.579148.4481829835Moist grasslands surrounding pond with willows, Russian olive, and snowberry thickets. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9126Joseph L. M. Charboneau201186218U.S.A.MontanaPhillipsLittle Rocky Mountains: NE of Silver Peak, ca 2 air mi ENE of Sugar Loaf Butte, ca 2.5 air mi E of Landusky; ca 47 air mi SW of Malta.-108.569747.897813621451Open south-facing slopes with ponderosa pine and juniper. Phenology: flowering & fruiting.RMRM908349 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1031Cynthia Villa2003719200U.S.A.ColoradoGrandBlue Valley Ranch.2394Sagebrush and rabbitbrush community in mountain swale with east aspect. Phenology: flowering.RMRM831054 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.9993Brian Elliott Elizabeth Mark and Pete Schneider1999728209U.S.A.ColoradoLas Animas[location and coordinates withheld]2682Pinus ponderosa, Quercus gambellii. Phenology: flowering.RMRM832008 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.65000Ronald L. Hartman Fengjie Sun199977188U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: Squirrel Creek from trailhead to branch to Pueblo Mountain Park.-104.999138.064320122317Wooded stream bottom. Phenology: flowering.RMUSFS885663 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.758Hans Hallman2009620171U.S.A.MontanaRosebudCuster National Forest: Ashland Ranger District: in and around Sawmill Gulch near Jackson Sawmill Spring, ca 1.5 air mi of Poker Jim Butte Lookout and ca 20.5 air mi SSW of Ashland.-106.35845.305611701234Sandy hillside above gulch. Phenology: flowering.RMRM616116 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8164Richard W. Scott1992614166U.S.A.WyomingFremontFairfield Hill.2560South-facing slopes. Phenology: flowering & fruiting.RMRM357362 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.4709Erwin F. Evert198288220U.S.A.WyomingParkAbsaroka Mountains: North Fork Shoshone River Drainage: along Sweetwater Creek Road, ca 1-2 mi N of U.S. Hwy 14.-109.644244.47631859Phenology: fruiting.RMRM104450 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.196Edward D. Pearson Dorothy Pearson1924823236U.S.A.WyomingParkShoshone National Forest: Crandall Road, Dead Indian Creek.2134Rocky limestone soil. Phenology: flowering.RMRM616108 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8235Richard W. Scott1992613165U.S.A.WyomingFremontNear Fort Stambaugh.2390Roadsides. Phenology: flowering.RMRM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6903Emma E. Freeland2013715196U.S.A.MontanaBeaverheadBlacktail Mountains: Weston Canyon, ca 11-12 air mi S of Dillon, ca 1-4 air mi N of Ashbough Peak.-112.599145.031723902396Dry, rocky, southerly-facing slopes in an opening of a mixed coniferous forest. Phenology: flowering & fruiting.RMRM111322 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2010Herman E. Hayward192779190U.S.A.WyomingWestonNewcastle.-104.208643.851712951371Western foothills; Cercocarpus associaton; xero-mesophytic. Phenology: flowering & fruiting.RMRM111322 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2138Herman E. Hayward1927714195U.S.A.WyomingCrookInyan Kara Creek, 17 mi S of Sundance.-104.264444.19791591Foothills; grass association; xerophytic. Phenology: flowering.RMRM921609 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.11146Robert D. Dorn2014612163U.S.A.WyomingPlatteCanyon below Guernsey Dam.-104.75542.281341Rocky slope, with Yucca and Opuntia. Flowers lavender; plants 1 m high. Phenology: flowering.RMRM921560 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.11177Robert D. Dorn2014619170U.S.A.WyomingPlatteCa 20 mi NW of Wheatland.-105.2542.291737Grassland, with Hesperostipa comata and Artemisia. Flowers lavender. Phenology: flowering.RMRM921209 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.11236Robert D. Dorn2014630181U.S.A.WyomingNiobraraCa 14 mi E of Lance Creek.-104.37166743.0466671310Highway right of way, with Elymus and Bromus. Flowers purple. Phenology: flowering & fruiting.RMRM963821 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1619Cheryl Mayer Andrew Lyons-Gould201671183U.S.A.WyomingCrookDevils Tower National Monument, summit of Devils Tower.1554South-southwest aspect; with Koeleria macrantha. Occasional. Phenology: flowering & fruiting.RMRM940052 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.11919Robert D. Dorn2017623174U.S.A.South DakotaCusterCa 23 mi W of Custer.-104.01543.7316671432Rocky roadside with Bromus, Achillea. Flower lavender. Phenology: flowering & fruiting.RMRM961501 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.299Nancy E. Hastings P. Block200773184U.S.A.WyomingPlatteCamp Guernsey: Osburn Ranch parcel; north end of transect ca 9.9 km NW of Range Control, ca 4.2 km NE of North Platte River.1537South-facing slope; mixed sagebrush grassland; silty loam; with Artemisia nova, A. tridentata, Bromus japonicus, Hesperostipa comata, Nassella viridula, Pascopyrum smithii. Scattered; erect, perennial herb; 4 dm tall; corolla pale lavender. Phenology: flowering.RMRM961502 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.105Nancy E. Hastings P. Block2007522142U.S.A.WyomingPlatteCamp Guernsey: Walsh Ranch parcel in Deadhorse Canyon; east end of transect ca 1.5 km SW of Range Guard 4, ca 7.6 km NE of Guernsey Reservoir.1524Level; intermittent stream drainage recovering from fire; silty loam with cobbles; with Symphoricarpos occidentalis, Toxicodendron rydbergii, Silene antirrhinum, Tragopogon dubius, Descurainia pinnata, Ellisia nyctelea, Bromus tectorum, Poa pratensis. Local; erect, perennial herb; 3 dm tall. Phenology: flowering.RMRM293403 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.61R. E. Ries D. W. Sabinske1973821233U.S.A.Wyomingno countyBlack Thunder Strip Mining area: North Prong of Thunder Creek and Little Thunder Creek.1463Breaks; with big sagebrush, blue grama, western wheatgrass; shallow clay, shale, and loamy soil; Shingle soil series. Phenology: flowering & fruiting.RMRM195635 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.35Edith V. A. Murphey1942715196U.S.A.WyomingFremontNear Ft. Washakie Indian School.1682Phenology: flowering.RMRM19934 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6027Aven Nelson Elias Nelson1899720201U.S.A.WyomingParkYellowstone National Park: Mammoth Hot Springs.-110.715344.964919202073On dry, open ground. Phenology: flowering.RMRM37174 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.278Leslie N. Goodding1901718199U.S.A.WyomingBig HornEastern Slope Big Horn Mountains.High, rocky slopes. Phenology: flowering.RMRM19933 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.6028Aven Nelson Elias Nelson1899720201U.S.A.WyomingParkYellowstone National Park: Mammoth Hot Springs.-110.715344.964919202073Common. Phenology: flowering.RMRM287755 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3036Gerald B. Ownbey Findley Ownbey1961816228U.S.A.WyomingWashakie13 mi NE of Ten Sleep, U.S. Hwy 16.South-facing hillside. 2 plants seen. Phenology: flowering.RMRM394664 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.416Orval C. Harrison198682214U.S.A.WyomingLincolnSalt River Range: Murphy Creek ca 0.3 mi W of oil well site, ca 20 air mi N of Afton.-110.904943.00322545Growing on unstable shale-rocky-clay soil on westerly slope with Crepis intermedia. Flowers light lavender-whitish. Phenology: flowering.RMRM68901 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.195Vie Willits1909628179U.S.A.WyomingSheridanHanna Creek.-106.991744.6719Grassy pastures and meadows. Phenology: flowering.RMRM293091 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.213Robert C. Gardner1971817229U.S.A.WyomingFremontU.S. Hwy 287-Wyo Hwy 789, ca 5 mi E of junction with Wyo Hwy 28.1981Along roadside. Phenology: flowering & fruiting.RMRM38450 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3049Frank Tweedy1900615166U.S.A.WyomingSheridanBetween Sheridan and Buffalo.-106.784144.463410671524Rolling plains. Phenology: flowering.RMRM262980 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.8252C. L. Porter Marjorie W. Porter1960628180U.S.A.WyomingSweetwaterBig Horn Range: Tensleep Canyon.-107.286744.09511829Common roadside weed; stems single or few together, not rhizomatous; flowers lavender. Phenology: flowering.RMRM293113 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.139Robert C. Gardner197177188U.S.A.WyomingSheridanU.S. Hwy 14, 22 mi NW of Ucross.1219Along roadside. Chemical voucher. Phenology: vegetative only.RMRM324209 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.111Mary Alice Sanguinetti Keith H. Dueholm197877188U.S.A.WyomingCampbell-105.479744.40451310Grassy plains. Phenology: flowering & fruiting.RMRM293116 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.130Robert C. Gardner197177188U.S.A.WyomingWashakieU.S. Hwy 16, ca 25 mi E of Ten Sleep in Tensleep Canyon.2652Along roadside. Chemical voucher; 2n = 26. Phenology: flowering & fruiting.RMRM324349 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.110Mary Alice Sanguinetti Keith H. Dueholm197877188U.S.A.WyomingCampbell-105.479744.40451310Grassy plains. Phenology: flowering & fruiting.RMRM173000 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.3Albert Mylroie19387182U.S.A.WyomingUintaEvanston.Weed. Phenology: flowering.RMRM293117 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.130Robert C. Gardner197177188U.S.A.WyomingWashakieU.S. Hwy 16, ca 25 mi E of Ten Sleep in Tensleep Canyon.2652Along roadside. Chemical voucher; 2n = 26. Phenology: vegetative only.RMRM324360 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.93Mary Alice Sanguinetti Keith H. Dueholm197876187U.S.A.WyomingCampbell-105.56244.5411250Grassy hills. Phenology: flowering & fruiting.RMRM324347 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.221Mary Alice Sanguinetti Keith H. Dueholm197878189U.S.A.WyomingCampbell-105.48144.79081189Hills with grass, pine, and juniper. Phenology: flowering.RMRM324352 Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.270Mary Alice Sanguinetti Keith H. Dueholm1978710191U.S.A.WyomingCampbell-105.663344.71731250Very dry grassy plains. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1212Timothy W. Chumley1995628179U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Tarryall Mountains: off Forest Road 207, on the banks and slopes above the South Platte River, ca 1/2 road mi N of USFS Happy Meadows Campground; ca 2-1/2 air mi N of town of Lake George.-105.3639.020226822782Open field adjacent to the river. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1253Timothy W. Chumley1995630181U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Parkdale Recreation Area off U.S. Hwy 50 along the south bank of the Arkansas River, ca 11.4 air mi WNW of Canon City.-105.393138.483217531762Weedy, disturbed site along the river, with alluvial gravels and thin, poor soils. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.1947Timothy W. Chumley1995718199U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: South Park: along the southeastern shore of Antero Reservoir and adjacent hills, ca 4 air mi NE of Antero Junction; ca 6.5 air mi SW of Hartsel.-105.893338.963327252804Roadside in broad, grassy flats beside the lake. Phenology: flowering & fruiting.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2423Timothy W. Chumley1995725206U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: along the north face of Little Crampton Mountain and W along Cottonwood Creek, ca 1.5 air mi W of Colo Hwy 9, ca 13.5 air mi WNW of Canon City.-105.448838.568820732347On the lower slopes of the mountain. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2809Timothy W. Chumley199586218U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Tarryall Mountains: from a seep at intersection of Forest Road 211 and Forest Road 540 to Corral Creek and surrounding uplands, ca 10 air mi N of town of Lake George.-105.3639.121521952603In a grassy lowland along the stream in ponderosa pine. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.2852bTimothy W. Chumley199588220U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Rampart Range: along Fern Creek and surrounding uplands, approx 0.2 road mi from intersection with Forest Road 351 or Fern Creek Road, ca 12 air mi N of Woodland Park. EC1/4-105.082639.164224392743Open grassy flats along the stream. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.807Timothy W. Chumley1995616167U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Nonans Peak above Tunnel Drive in uplands above the river, ca 3 air mi WSW of Canon City.-105.261738.440916152103Rocky, granitic slopes above a steep drainage. Phenology: flowering.RM Cirsium undulatumphysical specimenAsteraceaeCirsiumundulatum(Nutt.) Spreng.859Timothy W. Chumley1995616167U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Twin Mountain off U.S. Hwy 50, ca 5.6 air mi NW of Canon City; ca 2 road mi from turnoff to Royal Gorge.-105.300438.497418902073Along road in open grass. Phenology: flowering.36003,1,0true