Cirsium flodmanii (2002)
ASTERACEAE
Cirsium flodmanii (Rydb.) Arthur
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: tributary S of Keyton Creek on Rochelle Hills or Forest Road 933, ca 26 air mi SE of Wright, ca 23.5 air mi NNE of Bill.
Rocky soil in ravine with patches of ponderosa pine. Phenology: flowering.
Peter J. Ebertowski, 1208. 7/5/2002.
Accession: RM (unaccessioned)

Cirsium flodmanii (2002)
ASTERACEAE
Cirsium flodmanii (Rydb.) Arthur
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Persson Draw on Clarkelen Road, ca 16 air mi NNW of Wright; ca 24 air mi SSW of Gillette.
Sagebrush/grassland. Phenology: flowering & fruiting.
Accession: RM (unaccessioned)

Cirsium flodmanii (2003)
ASTERACEAE
Cirsium flodmanii (Rydb.) Arthur
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Little Powder River, on Wyo Hwy 59, ca 11 air mi N of Gillette; ca 30 air mi NW of Moorcroft.
Stream bank. Phenology: flowering.
Accession: RM (unaccessioned)

U.S.A., Colorado, Conejos County: Eastern San Juan Mountains: in The Canyon and adjacent areas on Forest Road 255 at the forest boundary, ca 12 air mi NW of Capulin; ca 15 air mi SSE of Monte Vista.
Above the canyon with areas of sandstone pavement, soil patches, and rocky areas, with scattered pinyon pine, juniper, isolated Douglas fir and ponderosa pine. Phenology: flowering & fruiting.
Annotations:
1. Cirsium flodmanii (Rydb.) Arthur
Annotated by Jeanette Flaig.
Accession: RM 795721

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Popo Agie River Drainage: near Twin Creek, ca 9 air mi S of Derby Dome Oil Field; ca 5.5 air mi NNW of Dilabaugh Buttes.
Moist draw on steep south facing slope with dense Bromus tectorum. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Wyoming, Laramie County: Southeastern Plains: along Horse Creek.
T18N R64W S23; also S26
Riparian. Phenology: flowering & fruiting.
with Eric Hazlett
Accession: (unaccessioned)

U.S.A., Colorado, Routt County: Sierra Madre\Park Range: Park Range: Routt National Forest: In canyon along Rock Creek, ca 16.5 air mi SE of Yampa, ca 4 air mi NNE of McCoy.
Disturbed areas and along bulldozed jeep trail.
with Michelle Nelson
Accession: (unaccessioned)

U.S.A., Colorado, Larimer County: Riparian Plants of the Cache la Poudre River: Kelly Flats Campground, ca 20 mi W of Teds Place on Colo Hwy 14. 200 yd downstream of campground access bridge.
Elev. 6560 ft.
T8N R72W S8
Northeast facing riverbank with Pinus ponderosa.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 19 air mi N of Crawford and 1.5 mi W of NE Hwy 71 and NE Hwy 2.
In silt soils and rock beds. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 5.5-6 air mi SW of Edgemont.
On juniper ridges of rock and shale. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi ENE of Hermosa and 4 air mi WSW of Railroad Buttes.
On ridge of rock and gravel. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 16.5 air mi ENE of Hermosa and 0.5 mi W of County Road 121.
On butte and butte slopes of clay and gravel soil. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 10.5-11 air mi ENE of Smithwick.
Elev. 1000 ft.
On ridge slumps of silty soils in Yucca glauca plant community. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 12.5-13 air mi NW of Crawford.
On rocky ridge and side slopes. Phenology: flowering.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 15-15.5 air mi SSE of Hermosa and 0.5 mi NW of Forest Road 7064.
In cattle exclosure around spring seep in the hillside. Area is floristically diverse and permanently protected from grazing. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 11-11.5 air mi ENE of Hermosa.
Elev. 3200 ft.
In rolling prairie uplands having rock strewn vegetated bluffs, soils are silt clay to clay loam. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 17.5-18 air mi ENE of Hermosa.
In prairie stream drainage cut, soils are clay and alkaline. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 3.5 air mi ESE of Wall.
In wetland reservoir, soils are loamy clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 3.5 air mi ESE of Wall.
In wetland reservoir, soils are loamy clay. Phenology: flowering & fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: between Sand Point and Blue Bank Draw, ca 1 3/4 air mi S of Nowater or BLM Road 1404, ca 15 air mi WSW of Big Trails; ca 30 air mi SE of Worland.
Stony, sandy-clay slopes with scattered sagebrush. Phenology: flowering.
with Luanne Lum
Accession: RM 803870, Barcode: RM0099190

U.S.A., Wyoming, Washakie County: Big Horn Mountains: along Cherry Creek or County Road 80, ca 4.5 air mi ENE of Mahogany Butte, ca 27.5 air mi SSE of Ten Sleep.
Juniper woodland - sagebrush; sandy soil and rock outcrops. Phenology: flowering.
Accession: RM 800744, Barcode: RM0096967

U.S.A., Wyoming, Washakie County: Bighorn Basin: Bedstead Reservoir on a tributary of North Fork Bud Kimball Creek, ca 2 air mi S of Castle Gardens, ca 8 air mi SSW of Ten Sleep.
Dry reservoir bed. Phenology: flowering & fruiting.
Accession: RM 933384, Barcode: RM0097816

U.S.A., Wyoming, Washakie County: Bighorn Basin: along Indian Creek, ca 4--5 air mi E of Big Cedar Ridge and 3--4 air mi W of the Nowood River, ca 13.5 air mi S of Ten Sleep.
Cobble stone slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Big Horn County: Big Horn Mountains: along Forest Roads 17 and 329 E of Spanish Point, ca 31 air mi ESE of Greybull.
Coniferous forest and sagebrush. Phenology: fruiting.

U.S.A., Wyoming, Fremont County: Wetlands and Adjacent Areas: Crooks Creek, ca 6 air mi S of Jeffrey City.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sheridan County: Near Ucross.
44.5691° N, 106.5368° W; NAD 83, uncertainty 2 mi., Digital Map
Roadside weed in ditches and meadows. Common thistle in the region, with purple corollas and taprooted but with a colonial habit and probably spreadding underground. The common thistle from Ucross to Buffalo.
with Marjorie W. Porter

U.S.A., Wyoming, Platte County: Palmer Canyon Road W of Wheatland, on the Laramie River.
42.0445° N, 105.1519° W; NAD 83, uncertainty 0.75 mi., Digital Map
In bottom land. Phenology: flowering & fruiting.
with Marjorie W. Porter

U.S.A., Wyoming, Laramie County: Near Pine Bluffs, on Spring Creek.
41.1987° N, 104.0817° W; NAD 83, uncertainty 0.75 mi., Digital Map
Bottom land. Phenology: flowering & fruiting.
with Marjorie W. Porter

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Shirley Mountains: First Ranch Creek and vicinity W of Shirley Mountain Loop or BLM Road 3115, ca 19.5 air mi NNE of Hanna.
North facing slope of open limber pine and calcareous rock. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Southeast Plains: banks of Spring Creek, 2 mi S of Federal and 3 mi E of Mesa Mountain; ca 5 air mi N of Wyo Hwy 201 (Happy Jack Road).
Banks of meandering stream channel on grassy terrace dominated by Agrostis stolonifera and Poa pratensis; vegetative cover 100%, but shorter than adjacent Bromus inermis/Alopecurus meadows; with Achillea, Equisetum laevigatum, Helianthus, Elymus lanceola Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Alpha Ditch along County Road 101, ca 3.5 air mi S of Elk Mountain townsite; ca 10.7 air mi WNW of Arlington.
Semi-moist ditch associated with Phleum pratense and sparse stands of cottonwood, willow, and birch. Phenology: fruiting.

U.S.A., South Dakota, Pennington County: Rapid City: Tourist Park.
In fields-along streams. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Black Hills: Custer State Park.
T4S R6E S4
Phenology: flowering & fruiting.
Annotations:
Annotated by Gerald B. Ownbey in 1988.
Harry Hapeman, s.n.. 7/28/1938.

U.S.A., South Dakota, Lawrence County: Whitewood.
T5N R4E S5
Canyon, north-facing slope; oak, willow, and elm association. Phenology: flowering & fruiting.

U.S.A., South Dakota, Meade County: Sturgis.
Redbed foothills; grass association; xero-mesophytic. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Custer State Park.
Open ponderosa pine forest. Common. Phenology: flowering & fruiting.

U.S.A., South Dakota, Washabaugh County: Hwy 73, ca 1 mi N of county line.
T40N R35W S30
Along roadside at edge of Prunus grove. Phenology: flowering & fruiting.
Accession: RM 293105

U.S.A., South Dakota, Custer County: Custer State Park.
T3S R6E S19
All along road through park. 2n = 22. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: East Short Pine Hills.
T16N R3E S11
Shady gulches. Phenology: flowering.
Annotations:
Annotated by G. B. Ownbey & Y. Hsi in 1960.
Accession: RM 70121

U.S.A., South Dakota, Perkins County:
Accession number duplicated in the database: specimen not verified. Phenology: flowering.
Annotated by G. B. Ownbey & Y. Hsi in 1960.

U.S.A., South Dakota, Perkins County:
Phenology: flowering.
Annotated by G. B. Ownbey & Y. Hsi in 1960.

U.S.A., South Dakota, Harding County: West Short Pine Hills.
T17N R1E S13
Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie Range: Friend Park; lower 1/2 Laramie Peak Trail, ca 27.5 air mi SE of Douglas.
Along trail. Phenology: flowering & fruiting.
with J. Brondum and T. McGowan

U.S.A., Wyoming, Natrona County: Laramie Range: W of Little Red Creek on the southwest side of Casper Mountain, ca 10.5 air mi SW of Casper.
Upper steep slopes below red cliffs with juniper, mountain mahogany, and sagebrush. Phenology: flowering & fruiting.
1. Cirsium flodmanii (Rydb.) Arthur
Annotated by B. A. Packer.

U.S.A., Wyoming, Converse County: Laramie Range: along Horseshoe Creek just above Trail Creek, ca 6 air mi N of Laramie Peak, ca 6 air mi SW of Esterbrook; ca 28 air mi S of Douglas.
Fine gravelly slopes dominated by annual bromes. Phenology: flowering & fruiting.
1. Cirsium flodmanii (Rydb.) Arthur
Annotated by B. A. Packer.

U.S.A., Colorado, Weld County: Grover.
Lowlands. Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.
Annotated by Gerald B. Ownbey in 1960.

U.S.A., Colorado, Weld County: Evans.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.
Annotated by Gerald B. Ownbey in 1960.
Earl L. Johnston, 223B. //1909.

U.S.A., Colorado, Weld County: [Fort] Lupton.
Annotated by Gerald Ownbey and Yu-Tseng Hsi. Phenology: flowering.
Earl Lynd Johnston, 815A. 6/15/1915.

U.S.A., Colorado, Montrose County: Tabeguache Basin.
Dry hill among oak brush. Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie Range: above Hay Draw, ca 2.5 air mi SE of Bar M Mountain, ca 64 air mi N of Laramie; ca 39 air mi SSW of Douglas.
Along base of rock ledges at edge of aspen woods. Phenology: flowering & fruiting.
Annotated by B. A. Packer.

U.S.A., Colorado, Weld County: New Windsor
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.
George E. Osterhout, 2305. 7/4/1900.

U.S.A., Colorado, Weld County: Windsor.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi Phenology: flowering.
George E. Osterhout, 2357. 7/8/1901.

U.S.A., Colorado, Larimer County: Near Rustic.
Phenology: flowering & fruiting.
Annotated by C. Franklin in 1969.

U.S.A., Colorado, Weld County: New Windsor.
Phenology: fruiting.

U.S.A., Colorado, Weld County: New Windsor.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi Phenology: fruiting.

U.S.A., Colorado, Larimer County: Harmony District.
Phenology: fruiting.

U.S.A., Colorado, Larimer County: Harmony District.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Harmony District.
Phenology: flowering & fruiting.
Annotated by Robert C. Gardner in 1971.
George E. Osterhout, s.n.. 8/11/1916.

U.S.A., Colorado, Weld County: Windsor.
Phenology: fruiting.
Annotated by Robert C. Gardner in 1971.
George E. Osterhout, s.n.. 9/5/1912.

U.S.A., Colorado, Larimer County: Horsetooth Mountain.
George E. Osterhout, s.n.. 7/16/1912.

U.S.A., Colorado, Larimer County: The Thompson River, below the canyon.
Annotated by Robert C. Gardner in 1971.

U.S.A., Colorado, Weld County: Windsor
Phenology: flowering.

U.S.A., Colorado, Weld County: Windsor

U.S.A., Colorado, Weld County: New Windsor, south of river.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Along the Thompson River.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi Phenology: flowering.

U.S.A., Colorado, Logan County: South Platte River Valley: 7.3 mi NE of Sterling on Hwy 138.
Dry roadside sod. Phenology: flowering & fruiting.
with Findley Ownbey

U.S.A., Colorado, Larimer County: Fort Collins
Waste places. Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.

U.S.A., Colorado, Larimer County: Fort Collins.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering.

U.S.A., Colorado, Larimer County: Howe's Gulch.

U.S.A., Colorado, Larimer County: Howe's Gulch.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Laramie Range: County Road 403, ca 0.2 to 1.2 air mi W of Twin Buttes.
Mudstone ridge towards buttes. Phenology: flowering & fruiting.
with Amy J. Roderick and Cherie Winner

U.S.A., Colorado, Weld County: Gravel road between Grover and Hereford, ca 1 mi SE of Hereford.
Roadside ditch. Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie Range: along unnamed spur of the Laramie River, ca 15 air mi SW of Esterbrook.
In sagebrush/grassland among boulders. Phenology: flowering & fruiting.
with T. McGowan

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Reuter Campground, ca 3 air mi NW of Sundance.
Meadow.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: along North Redwater Creek, ca 3 air mi W of Farrall, ca 12.5 air mi NNE of Sundance.
Meadow along the creek.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: at the mouth of Twomile Creek on North Redwater Creek, ca 4.3 air mi W of Farrall, ca 12.5 air mi N of Sundance.
Edge of thickets and bench along stream.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: North Platte River S of County Road 408, ca 0.3 air mi E of Pathfinder Dam; ca 9 air mi SW of Alcova townsite.
Sandy areas among granite rocks and Rocky Mountain juniper. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Powder River Basin: ca 6 air mi N of Dayton, ca 6.5 air mi NW of Ranchester along Cooper Draw.
Grassy slopes. Phenology: flowering.
Accession: RM 333325, Barcode: rm0280720

U.S.A., Wyoming, Washakie County: Big Horn Mountains: above the Nowood River on the Upper Nowood Road, ca 5 air mi SW of Nowood, ca 34 air mi S of Ten Sleep.
Sagebrush grassland in red beds. Phenology: flowering & fruiting.

U.S.A., Wyoming, Johnson County: Big Horn Mountains: ca 1/2 mi E of Lame Deer Lake, ca 7 air mi SW of Hunter Ranger Station, ca 18 air mi WSW of Buffalo.
Among boulders. Phenology: flowering.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Creek bottom in grassland-- streambanks.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Grassland.

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Heavily grazed plains and butte, eroded slopes, small holding pond; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Plains, draw, eroded slopes; draw. Phenology: flowering.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 4.5 air mi W of Pine Tree.
Dry plains, sandy roadcuts, depressions; roadcut. Phenology: flowering.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Holding pond, flats; flats. Phenology: flowering.

Plains and flats along creek, eroded slopes, sandy roadcuts; flats. Phenology: flowering.

U.S.A., Wyoming, Johnson County: [location and coordinates withheld]
Sagebrush plains, wet draw, hills with clinker outcrops; plains. Phenology: flowering.

U.S.A., Wyoming, Johnson County: [location and coordinates withheld]
Hilly, stony plains. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Powder River Basin: Boxelder Creek, ca 5 air mi ENE of Lake De Smet.
Meadows along creek, sandy plains, ridges; plains. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Powder River Basin: along U.S. Hwy 87, ca 2 road mi NW of Ranchester.
Wet ditches, meadows along small stream, tall grass prairie of big bluestem and slough grass, between railroad and wet ditch; prairie. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Ca 4.5 air mi W of Dayton.
Sandy soil with scattered Pinus ponderosa. Phenology: flowering.

U.S.A., Wyoming, Goshen County: [location and coordinates withheld]
Roadside and fence line. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Moist to wet meadow at upper end of reservoir. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: [location and coordinates withheld]
Benches and flats along the creek with patches of Symphoricarpos. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek on Marsh or County Road 245-1, ca 3/4 mi W of (upside down V)X Ranch, ca 25.5 air mi ENE of Iron Mountain (Farthing); ca 35 air mi N of Cheyenne.
Sandy slopes and plains above the creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: S of the Laramie River along the north side of the Fort Laramie Canal, ca 2 air mi SW of Fort Laramie (town); ca 21 air mi NW of Torrington.
Sandy lowlands. Phenology: flowering.
with David Reilly and Jim Cahill

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek ca 0.5 mi above the mouth of Spring Run, ca 17.7 air mi W of LaGrange, ca 34.5 air mi SSW of Torrington.
Sandy flats in the creek bottom with patches of snowberry, chokecherry or boxelder. Phenology: flowering.
with Tim Chumley and Robbin Romberg

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Chugwater Creek SE of Degans Butte, ca 7.5-8.5 air mi SW of Chugwater; ca 25 air mi S of Wheatland.
Hay meadows and valley bottom with scattered patches of boxelder. Phenology: flowering.
with Tim Chumley and Robbin Romberg

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: below the Fort Laramie Canal ca 2.5 air mi WSW of Fort Laramie (town), ca 20.5 air mi WNW of Torrington.
Meadows and banks adjacent to a slough. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Emigrant Gap Ridge, ca 12 air mi W of Casper.
Sandy and shaly areas with ponderosa pine on ridges. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Poison Spider Oil Field, ca 24 air mi W of Casper.
Sandy slopes and flats with sandstone outcrops in uplands with ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: [location and coordinates withheld]
Old roadcut with original grasslands along fences in sandy soil. Phenology: fruiting.

U.S.A., Wyoming, Converse County: [location and coordinates withheld]
Breaks and sandy plains and slope in grassland with patches of sagebrush. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 0.5 air mi NW of Ayres Natural Bridge campground.
Road cut and plains along fence. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
Sandy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 1.2 air mi NNW of Waltman.
Sandy draw and slopes. Phenology: flowering & fruiting.
with T. W. Nelson

U.S.A., Wyoming, Albany County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34, ca 1.5 air mi W of Platte County.
Sandstone/metamorphic outcrops. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 2 mi E of Slater on breaks.
Sandstone outcrops and sandy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole Rim: Mers Hill, ca 10 air mi E of Slater.
41.8789° N, 104.615° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Sandstone outcrops and sandy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: [location and coordinates withheld]
Limestone outcrops with mountain mahogany juxtaposed with degrading granites. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: [location and coordinates withheld]
Disturbed areas along railroad. Phenology: flowering & fruiting.

Sandy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 18 air mi SW of Chugwater.
Limy slopes and hill tops with badlands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Lodgepole Creek on both sides of County Road 148, 5 air mi N of I-80, ca 23.4 air mi ENE of Cheyenne; ca 2 1/2 air mi N of Burns.
Flats above the creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along North Crow Creek off County Road 109, ca 1 1/2 air mi N from junction with Wyo Hwy 210 or Happy Jack Road, ca 16.4 air NW of Cheyenne.
Drier flats and slopes above the creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: along Horse Creek between County Road 180 and County Road 182, ca 1/2 air mi E of Hawk Springs, ca 19.3 air mi SSW of Torrington.
41.791° N, 104.2552° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Along open banks of creek, in grazed pasture and along irrigation ditches in the pasture. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Reuter Campground, ca 3 air mi NW of Sundance.
Meadow. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: along North Redwater Creek, ca 3 air mi W of Farrall, ca 12.5 air mi NNE of Sundance.
Meadow along the creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: at the mouth of Twomile Creek on North Redwater Creek, ca 4.3 air mi W of Farrall, ca 12.5 air mi N of Sundance.
Edge of thickets and bench along stream. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Devils Tower National Monument: below Spring #2.
Side of draw in pine forest.

U.S.A., Wyoming, Crook County: Black Hills: Redwater Creek; ca 2.2 air mi WNW of Beulah.
Grassland, roadside. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Black Hills: headwaters of Bitter Creek, ca 2.5 air mi WNW of Alva.
Grassland. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Houston Creek where it turns south (near Harvey Divide), ca 10 air mi W of Sundance.
Grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills, S of Belle Fourche River near Mona, ca 14 air mi NNE of Hulett.
Grassland on south- and west-facing slopes. Phenology: flowering.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Creek bottom in grassland-- streambanks. Phenology: flowering.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Grassland. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Belle Fourche River: ca 16 air mi NE of Alva.
Shale bluffs, river bottoms, and sagebrush plains above; shale slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Inyan Kara Mountain.
David Griffiths, s.n.. 8/21/1897.

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: dried pond, 0.5 km ENE of Peak 4152 (339760, 4967580), 2.1 km SE of Peak 4244 (338560, 4969020). 340280E, 4967700N.
Elev. 1230 m.
Level to 15 degrees in Artemisia grassland in sandy loam, soil series Platsher-Wolfvar loams, with Artemisia ludoviciana, A. frigida, Gutierrezia sarothrae, Solidago rigida, Bromus tectorum. Disk lavendar, leaf floccose. Phenology: flowering & fruiting.
Patricia P. Douglas, 276. 8/28/1997.
with N. Hastings

U.S.A., Wyoming, Albany County: Cummins.

U.S.A., Wyoming, Platte County: Wheatland.

U.S.A., Wyoming, Albany County: Cheyenne.

U.S.A., Wyoming, Laramie County: Ca 6 mi W of Midway, ca 1 mi S of U.S.Hwy 85.
41.3572° N, 104.56° W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!
with J. Von Loh

U.S.A., Wyoming, Laramie County: West side of Cheyenne on Warren Air Force Base.
41.1447° N, 104.88° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!
Grassy moist meadow adjacent to cattails and willows. Phenology: flowering.
with T. Andrews and J. S. Peterson

U.S.A., Wyoming, Platte County: 1.8 mi N of Wheatland, Hwy 87.
Very common along road ditch saturated with irrigation water. Phenology: flowering.
with Findley Ownbey

U.S.A., Wyoming, Platte County: Deadhead Creek, 6 road mi E of Wyo Hwy 34, 12 road mi SW of Wheatland.
41.8352° N, 105.1691° W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!
Creekbanks and creekbed. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Bates Hole: Bolton Creek, ca 3.5 air mi W of Wyo Hwy 487; ca 1.5 air mi NW of Haystack Buttes; ca 18 air mi S of Casper.
Populus angustifolia stand along narrow creek channel on mixed alluvium with understory of Elymus trachycaulus, Agrostis stolonifera, and Melilotus officinalis. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: 5 mi SE of Torrington.
River bottom with Populus and Melilotus. Flowers lavender. Phenology: flowering.

U.S.A., Wyoming, Laramie County: Eastern Plains: Brunyansky Draw, 1-1.5 mi S of Horse Creek, 0.5-1 mi W of I-25; 0.5 mi E of Nimmo road.
Open canopy moist draw and adjacent hay meadow in shallow basin with Phleum, Agrostis, Gaura neomexicana ssp. coloradensis. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Shirley Basin: east rim of Bates Hole: southeast slopes and summit of Twin Buttes, ca 0.5 mi N of Sand Draw Road, ca 2 air mi E of Wyo Hwy 487.
White, crumbly limey-sandstone outcrops and steep scree slopes. Cusion plant community with bunchgrasses. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: SE Plains: ca 1 1/2 mi W of I-25 on north edge of Wheatland adjacent to Brookie Road.
Fallow field dominated by Bromus inermis. At edge of grove of Populus deltoides and Elaeagnus angustifolia. Phenology: flowering & fruiting.
with Jane Struttmann

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: near Lake Owen Creek, ca 1 air mi E of Lake Owen, ca 11 air mi S of Centennial.
Brunt draw, near creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: S of Ring Mountain, area of Maggie Creek, ca 1 air mi SE of intersection of Wyo Hwy 10 and Gyp Quarry Road, ca 7 air mi SSE of Woods Landing and ca 10 air mi SE of Foxpark.
Seep in sagebrush hills, white soil that smells like selenium. Phenology: flowering.

U.S.A., Montana, Musselshell County: Golf Course Road, ca 13.5 air mi W of Roundup, ca 1.5 air mi E of junction with Timber Butte Road.
Elev. 1160 m.
46.5041° N, 108.8497° W; NAD 83, uncertainty 0.25 mi., GPS reading
Rocky draw running SW to NE; very dry, scattered Pinus ponderosa; limestone and shale cliffs. Phenology: flowering.
1. Cirsium flodmanii (Rydb.) Arthur.

U.S.A., Montana, Powder River County: Custer 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.
Meadow in the valley bottom. Phenology: flowering.
Accession: USFS 885671, Barcode: USFS0055528

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: along a draw leading into Ward Gulch and to Spring No. 1, ca 17 air mi SW of Buffalo.
Meadow in the bottom of the draw. Sheet 2 of 2 Phenology: flowering.
Accession: USFS 885670, Barcode: USFS0055527

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: along a draw leading into Ward Gulch and to Spring No. 1, ca 17 air mi SW of Buffalo.
Slash burn areas. Phenology: flowering.
Accession: USFS 885668, Barcode: USFS0055525

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: on the divide SE of Devils Canyon, ca 21 air mi SE of Ekalaka.
Slopes and ravines of a burned area. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: at the mouth of Spring Canyon and just below at the northwest base of Rustler Ridge, ca 20.5 air mi SE of Ekalaka.
Bushy stream bank and adjacent moist bench in open ponderosa pine forest. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: Iron Spring and vicinity and down stream, ca 18 air mi SE of Ekalaka.
Bushy slope and adjacent creek bottom. Phenology: flowering.

U.S.A., Montana, Powder River County: S of U.S. Hwy 212 and E of Titus Creek, ca 22.5 air mi ESE of Ashland.
Grass-dominated grazing land interspersed with badlands. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Unnamed tributary of South Fork Moreau River, ca 0.5 air mi SW of County Road 897 and ca 3 air mi S of junction of 897 and Dillon Road, ca 21 air mi SSE of Camp Crook.
Grazing land dominated by grasses. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in the vicinity of Red Bluff Spring, just W of Forest Road 3117, ca 5 air mi SSW of Mill Iron and ca 16.5 air mi ESE of Ekalaka.
East-facing rocky slope with mix of ponderosa pine, green ash, and hardwood shrubs. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: In and around a drainage near the head of Ewalt Draw, off of Ridge Road, ca 7 air mi WNW of its junction with Mont Hwy 323, ca 25.5 air mi S of Ekalaka.
Rolling grazing land dominated by sagebrush and grasses. Phenology: flowering.

U.S.A., Montana, Carter County: In and along Chito Creek SW of Dead Boy Divide and ca 10.5 air mi E of Saddle Butte, ca 18.5 air mi SSW of Ekalaka.
In and around creek bottom surrounded by grass-dominated grazing land. Phenology: flowering.

U.S.A., Montana, Carter County: Just off of Mont Hwy 323 at Skull Creek, ca 3 road mi S of junction with Tie Creek Road, ca 23.5 air mi SSE of Ekalaka.
Mixed grass and badlands. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Russel Spring just S of Camp Needmore off of Forest Road 3104, ca 6.5 air mi SE of Ekalaka.
Open ponderosa pine and grass-dominated woodland. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: Cook Mountain Hiking and Riding Area: in the vicinity of Cliff Spring and areas SE, W of Forest Road 4772, ca 9 air mi NE of Ashland.
Grass-dominated rocky slope. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in Cheesman Draw, just NE of Pioneer Cemetery off of Forest Road 3045, ca 8.5 air mi WNW of Camp Cook, SD.
In and near margin of reservoir. Phenology: flowering.

U.S.A., Montana, Carter County: Ca 1.5 air mi NW of Hammond Road, in and around unnamed reservoir on Muskrat Creek, ca 6.5 air mi WSW of Ridgeway.
Grass-dominated grazing land. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just E of Forest Road 3117, ca 1/4 air mi SE of Iron Spring, ca 18 air mi NW of Camp Crook, SD.
Grass-dominated meadow into wind-thrown ponderosa pine woodland. Phenology: flowering.
with G. Gust

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just W of Forest Road 3117, in and around unnamed pond in Spring Canyon, ca 16 air mi NW of Camp Crook, SD.
Above margin of unnamed still-water pond. Phenology: flowering.
with G. Gust

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in and around McNab Pond, at terminus of Forest Road 1401, ca 0.5 air mi NE of Mont Hwy 323, ca 7 air mi SE of Ekalaka.
In and around pond dominated by Scirpus and Typha spp. and grasses on its margin. Phenology: flowering.
with G. Gust

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: E of Forest Road 4775, ca 1.5 air mi SE of East Fork Otter Creek Road, ca 2.5 air mi SSW of Holiday Campground, ca 13.5 air mi E of Ashland.
In and around grazed draw dominated by green ash, hawthorn, chokecherry, and Symphoricarpos. Phenology: flowering.

U.S.A., Montana, Powder River County: Ca 1 air mi N of Belle Creek Road, ca 4 air mi E of its junction with Mont Hwy 59, ca 19 air mi SSE of Broadus.
Grass and sagebrush-dominated grazing land with some moist draws and scattered small areas of badlands. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Griffin Pass, E of Forest Road 4431, ca 21.5 air mi ENE of Ashland.
Southwest-facing rocky and clayey slope with Phacelia, Cryptantha, Penstemon, Solidago, and Ericameria. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Cabin Spring near the junction of Forest roads 4425 and 4776D, ca 1.5 air mi N of U.S. Hwy 212, ca 15 air mi E of Ashland.
Ponderosa pine woodland with grass-dominated understory. Phenology: flowering.

U.S.A., Montana, Carter County: Just S of Powderville Road, ca 2.5 air mi E of Powder River County, ca 20 air mi WSW of Ekalaka.
Badlands. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: along Forest Road 47696 between Sartin Draw Reservoir and Sartin Draw Spring, ca 16 air mi NE of Ashland.
In green ash and Crataegus-dominated draw surrounded by open ponderosa pine woodland with grass-dominated understory. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Mud Turtle Reservoir, N of Forest Road 4432, ca 3 air mi NW of Diamond Butte, ca 25.5 air mi SE of Ashland.
Grazed draw dominated by green ash and Symphoricarpos. Phenology: flowering.

U.S.A., Montana, Carter County: Long Pines Area SE of Ekalaka, Lantis Spring Camground.
Grassy hill with Solidago rigida, and Aster. Phenology: flowering.

U.S.A., Montana, Yellowstone County: Silesia.
Railroad grades. Phenology: flowering & fruiting.

U.S.A., Montana, Big Horn County: Little Big Horn River near Lodgegrass.
Meadows along the river. Phenology: flowering.

U.S.A., Montana, Deer Lodge County: 22 mi NW of Butte.
Road embankments, flat valley floor. Common, strongly clonal; corollas dark lavender. Phenology: flowering & fruiting.
with Findley Ownbey

U.S.A., Montana, Teton County: 2.2 mi N of Choteau.
In prairie sod strip between railroad right-of-way and highway; moist situations. Locally common. Phenology: flowering.
with Yu-Tseng Hsi

U.S.A., Montana, Gallatin County: 7 mi SE of Bozeman.
On moist, south-facing slope of canyon, in sod. Phenology: flowering.
with Yu-Tseng Hsi

U.S.A., Montana: Custer National Forest: Divides of Poker Jim Ranger Station.
Poor soil; grass cover type. Phenology: flowering.
Accession: USFS 476067

U.S.A., North Dakota, Bowman County: 8 mi E of Bowman.
Roadside. Phenology: flowering & fruiting.

U.S.A., North Dakota, Cass County: Vicinity of Fargo.
Black alluvial loam. Phenology: flowering.
with T. F. Manns

U.S.A., North Dakota, Benson County: Butte.

U.S.A., North Dakota, Benson County: Butte.
In low meadow land. Phenology: flowering & fruiting.

U.S.A., North Dakota, Pembina County: Hwy 11, 1/2 mi W of Drayton.
Roadside, rather wet for the species. Phenology: fruiting.

U.S.A., North Dakota, Benson County: Leeds.

U.S.A., North Dakota, Ward County: Near Minot.
Morainic hills. Phenology: flowering.

U.S.A., North Dakota: Marza.
Prairies. Phenology: flowering.

U.S.A., Minnesota: University of Minnesota: Botany Garden.
Grown from seeds collected by Marion Ownbey, No. 3228, 7 mi E of Ray, Williams Co. ND on Aug 29, 1949. 2n another plant this seed lot = 22. Phenology: flowering & fruiting.
Gerald B. Ownbey, s.n.. //1952.

U.S.A., North Dakota, Bowman County: 8 mi E of Bowman.
Roadside. Phenology: vegetative only.

U.S.A., North Dakota, Benson County: Leeds.
Prairies. Phenology: flowering.

U.S.A., North Dakota, Rolette County: Turtle Mountains.
Phenology: buds.

U.S.A., South Dakota, Walworth County: Missouri River Valley: Mobridge.
Benchlands. Phenology: flowering.

Cirsium flodmanii ()
U.S.A., South Dakota, no county County:
On prairies. Common. Phenology: fruiting.

U.S.A., South Dakota, Brookings County: Vicinity of Brookings.

U.S.A., South Dakota, Brookings County: Vicinity of Brookings.
Tom A. Williams, s.n.. 8/9/1892.

U.S.A., South Dakota, Brookings County: Vicinity of Brookings.
Tom A. Williams, s.n.. 9//1892.

U.S.A., South Dakota, Minnehaha County: 9.5 mi W of Sioux Falls.
In large sheep pasture. A great abundance of this species, mostly in fruit with a few plants still in flower. Phenology: flowering & fruiting.

U.S.A., South Dakota, Minnehaha County: Palisades State Park: 2 mi S of Garretson.
Partially shaded granite outcrops bordering river. Phenology: flowering & fruiting.
with Carol Teale

U.S.A., Nebraska, Kimball County: Along Lodgepole Creek, 2.2 air mi ENE of Pine Bluffs.
Willow trees/open meadow, at creek, south of creek, 1st terrace. Phenology: flowering.

U.S.A., Nebraska, Kearney County: Minden.
Harry Hapeman, s.n.. 7/14/1930.

U.S.A., Nebraska, Hall County: 1 mi NE of Grand Island.
In low sandy abandoned field as a weed. Species covers several acres; common. Phenology: flowering & fruiting.

U.S.A., Nebraska, Kearney County: Platte River.
Elev. 500 m.

U.S.A., Nebraska, Cheyenne County: Hwy 30, ca 2 mi E of Sidney.
Along roadside. Phenology: flowering & fruiting.

U.S.A., Nebraska, Kearney County: Minden.
Harry Hapeman, s.n.. 7/19/1891.

U.S.A., Nebraska, Dixon County: Hwy 20, 14.1 mi E of Laurel.
Weed in abandoned field. Plants to 12dm tall. Phenology: flowering & fruiting.
with Yu-Tseng Hsi

U.S.A., Nebraska, Kearney County: Minden.
Phenology: buds.
Harry Hapeman, s.n.. 7//1892.

U.S.A., Montana, Phillips County: Along Pickhandle Coulee, ca 24 air mi SSE of Saco; ca 26 air mi ESE of Malta.
Meadows in the bottom. Phenology: flowering.

U.S.A., Montana, Phillips County: Little Rocky Mountains: ridge W of Montana Gulch and SE of Indian Peak, ca 0.5 air mi W to 1 air mi NW of Landusky; ca 48.5 air mi SW of Malta.
Open slope with scattered ponderosa pine. Phenology: flowering.

U.S.A., Montana, Valley County: Along West Fork Poplar River at Mason Road crossing, ca 10.5 air mi ENE of Opheim; ca 54 air mi NNE of Glasgow.
Low marshy flats and drier meadows along the river. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Along Plum Creek at Willow Creek Road, ca 7.5 air mi N of Fort Peck Lake, ca 40 air mi SW of Glasgow.
Swale. Phenology: flowering.

U.S.A., Montana, Valley County: Mont Hwy 24 at bridge over Dry Fork Creek, ca 8.5 air mi SE of Forsman Reservoir, ca 23.5 air mi NNE of Glasgow.
Sagebrush-grasslands on clay soil. Phenology: flowering.
Joseph L. M. Charboneau, 2471. 7/29/2010.

U.S.A., Montana, Phillips County: Shore of Ester Lake, N of Hog Farm Road, ca 3.5 air mi SW of Wild Horse Reservoir, ca 26 air mi SW of Malta.
Moist areas of loamy to clay soil around lake. Phenology: flowering.
Joseph L. M. Charboneau, 3018. 8/8/2010.

U.S.A., Montana, Phillips County: Matador Ranch: W of Stage Road (Mont Hwy 204), Little Warm Creek, ca 8 air mi WNW of Veseth Reservoir, ca 10 air mi ENE of Zortman; ca 35 air mi SW of Malta.
Riparian area. Phenology: flowering.
Joseph L. M. Charboneau, 3047. 8/8/2010.

U.S.A., Montana, Valley County: N of Kerr Road, Wards Reservoir, ca 6.5 air mi NE of Forsman Reservoir, ca 17 air mi SW of Opheim.
Moist clay soil surrounding reservoir. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Charles M. Russell National Wildlife Refuge: Carpenter Coulee, S of Harper Ridge Road, ca 9 air mi SSW of Halfpint Reservoir, ca 41.5 air mi SW of Glasgow.
Moist areas of clay soil in draw bottoms. Phenology: flowering.

U.S.A., Montana, Phillips County: Reservoir on Cottonwood Creek, E of Turkey Track Road, ca 4 air mi NE of Charley Reservoir, ca 15.5 air mi NE of Whitewater; ca 45 air mi NNE of Malta.
Dry clay soil around reservoir. Phenology: flowering.

U.S.A., South Dakota, Lawrence County: Black Hills National Forest: ca 5 air mi SW (245 degrees) from Spearfish, in the vicinity of Higgins and Griggs gulches.
Limestone cliffs above Pinus ponderosa/Quercus macrocarpa woodland. USGS Quad:Maurice Survey ID#:10H006 Phenology: flowering & fruiting.
Accession: USFS 860069

U.S.A., Montana, Phillips County: American Prairie Reserve: south bank of Beaver Creek ca 3.5 air mi NNE of Holzhey Reservoir, ca 23 air mi ENE of Zortman; ca 30 air mi SSW of Malta.
Hillsides and grasslands with scattered sagebrush on sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Bennett Lake, just W of intersection of Content Road and Sun Prairie Road, ca 5.5 air mi SSW of Drabbels Reservoir, ca 13.5 air mi N of Beaver Creek, ca 11 air mi SSE of Malta.
Moist areas around edge of reservoir. Phenology: buds.

U.S.A., Montana, Valley County: Hell Creek, ca 4 air mi SSE of Johnnys Hill, ca 20 air mi SW of Opheim; ca 44 air mi NE of Glasgow.
Riparian coulee bottom. Phenology: flowering.

U.S.A., Montana, Phillips County: Little Rocky Mountains: South Fork Goslin Gulch, north side of Saddle Butte, ca 2 air mi ENE of Silver Peak, ca 1.5 air mi SW of Zortman; ca 46 air mi SW of Malta.
Open ponderosa pine woodland on south-facing slope. Phenology: fruiting.

U.S.A., Montana, Phillips County: PR-22 Reservoir, N of Whitewater Creek, ca 4.5 air mi SW of 3 Way No. 2 Reservoir, ca 10 air mi NW of Whitewater; ca 37.5 air mi NNE of Malta.
Moist areas surrounding reservoirs. Phenology: flowering.

U.S.A., Montana, Madison County: Foothills of the Snowcrest Range: Robb-Ledford State Wildlife Management Area: Robb Creek, ca 3 air mi WNW of Hogback Mountain.
Ecotone between wet meadow and dry, rocky knolls. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Griffin Pass, E of Forest Road 4431, ca 21.5 air mi ENE of Ashland.
Southwest-facing rocky and clayey slope with Phacelia, Cryptantha, Penstemon, Solidago, and Ericameria. Phenology: flowering.
Accession: (unaccessioned), Barcode: USFS0050072

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: along a draw leading into Ward Gulch and to Spring No. 1, ca 17 air mi SW of Buffalo.
Meadow in the bottom of the draw. Sheet 1 of 2 Phenology: flowering.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Pedro Mountains: Pyramid Mountain, ca 6.3 air mi W of County Road 291; ca 7.3 air mi NW of Leo.
Open draw with granite boulders at edge of ponderosa pine; recent burn. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Sierra Madre: Bottle Creek, ca 6.5 air mi WSW of Encampment.
T14N R85W S13
Flat, dry slope. Rare. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sheridan County: Along U.S. Hwy 14-16, 0.6 mi SW of Clearmont; all along Clear Creek to Ucross.
Wet road ditch by highway, seen along creek in the flat irrigated valley floor. Common; probably introduced. Phenology: fruiting.

U.S.A., Wyoming, Sheridan County: Sheridan.

U.S.A., Wyoming, Sheridan County: Along U.S. Hwy 14, 7 mi W of Ucross
Along roadside in farming area. Phenology: flowering.

U.S.A., Wyoming, Washakie County: Red Bank.
Meadows. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Between Big Horn and Becton, 5 mi NW of Big Horn.
Gravel road along roadside and into pasture. Phenology: flowering.

Cirsium flodmanii ()
U.S.A., Wyoming, Sheridan County: Goose Creek region; S of Sheridan.
Vie Willits, 584. //.

U.S.A., Wyoming, Sheridan County: Big Horn.
T54N R84W S4; also S5
Moist roadside ditch. Phenology: flowering.
Wilhelm G. Solheim, 803a. 8/29/1934.

U.S.A., Wyoming, Sheridan County: Sheridan Experiment Farm.

U.S.A., Wyoming, Crook County: New Haven.

U.S.A., Wyoming, Johnson County: East Slope Big Horn Mountains: Bear Gulch, ca 1 mi SW of Little Piney Creek, ca 2.5 mi W of Kearney.
Meadow of Poa pratensis, Stipa, Elymus, Solidago mollis. Phenology: flowering.
with Janet Britt

U.S.A., Wyoming, Sheridan County: East slope Big Horn Mountains: Little Rapid Creek, ca 6.5 air mi S of Beckton.
Weedy gravel-sand roadside adjacent to irrigation ditch along creek; with Salix exigua, Bromus inermis, and Dactylis glomerata Phenology: flowering.
with Janet Britt

U.S.A., Wyoming, Park County: Clarks Fork Valley: Little Rocky, near Cody road.
Rocky ditch bank. Phenology: flowering.
with Dorothy Pearson

U.S.A., Wyoming, Sheridan County: U.S. Hwy 14, 22 mi NW of Ucross.
Along roadside. Chemical voucher. Phenology: flowering.

U.S.A., Wyoming, Park County: Clarks Fork Valley: near Little Rocky crossing on Cody road.
Rocky ditch bank. Phenology: flowering.
with Edward D. Pearson

U.S.A., Wyoming, Johnson County: U.S. Hwy 87, ca 23 mi S of Buffalo.
Along roadside, in farming area. 2n = 22 Phenology: flowering.

U.S.A., Wyoming, Campbell County:
Dry grassy plains. Phenology: flowering.
Mary Alice Sanguinetti, 328. 7/11/1978.
with Keith H. Dueholm

U.S.A., Wyoming, Johnson County: U.S. Hwy 16, ca 3 mi NE of Buffalo.
In farming area, along roadside. Chemical voucher; 2n = 22 Phenology: buds.
Robert C. Gardner, 136b. 7/7/1971.

U.S.A., Wyoming, Johnson County: U.S. Hwy 16, ca 3 mi NE of Buffalo.
In farming area, along roadside. Chemical voucher. Phenology: flowering.
Robert C. Gardner, 136a. 7/7/1971.

U.S.A., Wyoming, Sheridan County: Hanna Creek.
Meadows and pastures. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Between Sheridan and Buffalo.
Rolling plains. Phenology: flowering.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Gardner Peak/Crampton Mountain: on slopes, ridges and peaks and along Tallahassee Creek, off County Road 21A ca 15.2 air mi ENE of Canon City.
In a rocky drainage in ponderosa pine at lower elevation. Phenology: flowering.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: East Gulch: along East Gulch and surrounding slopes and ridges, at end of County Road 27, ca 5.2 air mi N of town of Texas Creek. C1/2
Rocky slopes with volcanic soils in pinyon-juniper with occasional Douglas fir. Phenology: flowering.