Pediomelum esculentum (2002)
FABACEAE
Pediomelum esculentum (Pursh) Rydb.
U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: N of Keyton Creek off Keyton Creek or Forest Road 937, ca 47 air mi WSW of Newcastle; ca 23 air mi NNE of Bill.
Clay areas above the gullies. Phenology: flowering.
Annotations:
1. Pediomelum esculentum (Pursh) Rydb.
Annotated by Peter J. Ebertowski.
with Peter Ebertowski
Accession: RM (unaccessioned)

Pediomelum esculentum (2002)
FABACEAE
Pediomelum esculentum (Pursh) Rydb.
U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: on the divide between Buzzard and Little Mike creeks, ca 2.5-3 air mi N of Wyo Hwy 450, ca 35 air mi SW of Upton.
Sandstone ridge and adjacent slopes. Phenology: flowering.
Annotations:
1. Pediomelum esculentum (Pursh) Rydb.
Annotated by Peter J. Ebertowski.
with Peter Ebertowski
Accession: RM (unaccessioned)

Pediomelum esculentum (2002)
FABACEAE
Pediomelum esculentum (Pursh) Rydb.
U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: on the divide between Lake and Meadow creeks and to the W, ca 14 air mi NE of Bill; ca 46 air mi NNE of Douglas.
On and around chip stone knolls. Phenology: flowering.
Annotations:
1. Pediomelum esculentum (Pursh) Rydb.
Annotated by Peter J. Ebertowski.
with Peter Ebertowski
Accession: RM (unaccessioned)

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: west side of Cow Creek Buttes on an east branch of Coal Draw, ca 14 air mi E of Bill; ca 41 air mi NNE of Douglas.
Clay slopes with rock outcrops. Phenology: flowering.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: on the divide between Cow Creek and head of Deer Creek W of Cow Creek Buttes, ca 12 air mi ENE of Bill; ca 40 air mi NNE of Douglas.
Clay slopes with scattered sagebrush. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: along Forest Road 913 E of Pump Creek, ca 6 air mi ENE of Upton.
Sandstone pavement with patches of vegetation. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Red Hills ca 0.5-1 air mi WSW of Dugout Bench Mark, ca 46.5 air mi N of Douglas; ca 13 air mi N of Bill.
Moist areas on scoria slopes. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ridge at the heads of Short and Logan creeks, ca 4 air mi W to WSW of Soda Well; ca 24-25 air mi N of Gillette.
Idaho fescue meadow, scattered sagebrush, disturbed patches, and edge of ponderosa pine forest on scoria ridge. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: ridge W of East and West Rabbit mountains on Wyo Hwy 270, ca 21.5 air mi NNW of Lusk; ca 46 air mi ENE of Douglas.
Ponderosa pine woodland with limestone outcrops. Phenology: fruiting.
Peter J. Ebertowski, 1049. 7/3/2002.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: broad gully SE of Cheyenne River on Clareton or County Road 7A, ca 37 air mi SE of Wright; ca 44 air mi SW of Newcastle.
Broad grassy gully. Phenology: fruiting.
Peter J. Ebertowski, 1154. 7/5/2002.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: along ridge running N-S, E and above Short Creek, ca 26 air mi NNE of Gillette; ca 3 air mi W of Weston.
Idaho fescue grassland. Phenology: flowering.
Peter J. Ebertowski, 152. 6/18/2002.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: North Fork Lone Tree Creek on Grieves or County Road 5, ca 19 air mi WSW of Newcastle; ca 24 air mi S of Upton.
Shore of creek. Phenology: flowering.
Peter J. Ebertowski, 303b. 8/16/2002.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: E of Red Hills at terminus of Forest Road 942C, ca 26 air mi SE of Wright; ca 15.5 air mi NNE of Bill.
Clay with scoria stone. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: western edge of Duck Creek Breaks, immediately E of Duck Creek on two track road, ca 35 air mi NE of Gillette; ca 15 air mi NW of Oshoto.
Hilly grassland with rocky and clayey bare patches and ravines with ponderosa pine and Rocky Mountain juniper. Phenology: buds.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: hills forming southwest portion of Archie Draw on Forest Road 962, ca 13 air mi ENE of Bill; ca 26 air mi NW of Lance Creek.
Drainage fan with clayey soil. Phenology: flowering.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Lake Creek on County Road 38, ca 10 air mi NE of Bill; ca 35 air mi SE of Wright.
Slope above creek in Stipa comata grassland. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: hills between Snyder and Dogie creeks, on North Lance Creek or County Road 14, ca 43 air mi SW of Newcastle; ca 25 air mi NNW of Lance Creek.
Outcrop of broken sandstone. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Piney Canyon on Piney Canyon or County Road 69, ca 22 air mi ESE of Wright; ca 48 air mi WSW of Newcastle.
Sagebrush grassland with bluebunch wheatgrass on rocky soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder 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.
Watercourses between clay hills and creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: low hills N of Flat Creek, on LA Ranch or County Road 10, ca 33 air mi NE of Gillette; ca 31 air mi NNW of Moorcroft.
Grassy hilltop with small rock outcrops. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: sagebrush grassland ca 1.3 mi NW of Soda Well, on Forest Road 1032, ca 31 air mi NNE of Gillette; ca 35 air mi NNW of Moorcroft.
Among big sagebrush. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: tributary of Skull Creek, E of Sunquist Draw, on County Road 14, ca 13 air mi ESE of Upton; ca 15 air mi NE of Newcastle.
Hilltop with big sagebrush and scattered ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hills E of and draining to East Iron Creek, on four wheel drive road, ca 8 air mi ENE of Upton; ca 23 air mi NW of Newcastle.
Sagebrush grassland on hilltop with scattered ponderosa pine. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Blacktail Creek on U.S. Hwy 85, ca 9.5 air mi S of Newcastle; ca 23 air mi N of Mule Creek Junction.
Wide low bank of creek. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Burning Coal Draw just N of North Prong Little Thunder Creek on Wyo Hwy 450, ca 15 air mi ESE of Wright; ca 43 air mi SSE of Gillette.
Grassland on scoria slope. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Thunder 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.
Mosaic of sagebrush grassland and grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Olson Draw, on two track road off Forest Road 1619, ca 14 air mi SE of Wright; ca 48 air mi S of Gillette.
Sagebrush grassland, Bouteloua gracilis abundant. Phenology: vegetative only.

U.S.A., Montana, Carbon County: Ridge immediately N of County Road 421 and E of Monahan Road, 1.3 mi W of Joliet.
Elev. 4000 ft.
Disturbed ponderosa pine-grassland on sandstone outcroppings with Agropyron spicatum, Alyssum desertorum, and Bromus tectorum. Phenology: vegetative only.
Accession: RM 818257, Barcode: RM0013775

U.S.A., Montana, Carbon County: Wolf Canyon 1 mi S of the Yellowstone River, ca 14 mi WSW of Laurel.
Sides of canyon in rocky open ponderosa pine forest with Agropyron spicatum, Festuca idahoensis, and Rhus trilobata in the understory. Phenology: flowering & fruiting.
Accession: RM 820215, Barcode: RM0023376

U.S.A., Montana, Stillwater County: Coal Mine Coulee, ca 10 mi SE of Columbus.
Elev. 3700 ft.
Grassland and open ponderosa pine forest with Koeleria macrantha, Agropyron spicatum, Bouteloua gracilis, and Balsamorhiza incana.

U.S.A., Montana, Stillwater County: Along Whitebird Creek, ca 10 mi S of Columbus.
Elev. 4100 ft.
Grassland with Bouteloua gracilis, Koeleria macrantha, and Delphinium bicolor. Phenology: flowering & fruiting.
Accession: RM 822358, Barcode: RM0014418

U.S.A., Montana, Stillwater County: Ridge just N of the Huntley Creek Road, 4 mi SW of Columbus.
Grassland and open ponderosa pine forest on south-facing slope with Koeleria macrantha, Cerastium arvense, Pediomelum esculentum, and Zigadenus venenosus var. gramineus. Phenology: flowering.

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: Carlsen Butte, ca 8.5-9 air mi N of Crawford.
Grasslands with some badlands on the slopes and draws. Phenology: flowering.
Annotated by Grace M. Kostel.
with Grace Kostel

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: S of Sugarloaf or Forest Road 900, just E and NE of Strawstack Butte, ca 16.5 air mi NNE of Crawford.
Mosiac of grassland, badlands, rocky slopes of clay, and drainage bottoms. Phenology: flowering.
Annotated by Grace M. Kostel.
with Grace Kostel

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: mesa ca 1.5-2 air mi S of French Creek and 3/4-1 air mi E of South Fork French Creek, ca 15.5 air mi SE of Hermosa.
Rocky clay slopes. Phenology: flowering.
Annotated by Grace M. Kostel.
with Grace Kostel

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: along County Road 18, N of French Creek and ca 1 1/4 air mi W of the Cheyenne River, ca 3 air mi WSW of Red Shirt; ca 18 air mi SE of Hermosa.
Stony, gravelly slopes with scattered sand sagebrush. Phenology: flowering.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 19 air mi SE of Hermosa.
Butte tops and slopes of sand and gravel soil. Phenology: flowering.

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., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 7-7.5 air mi NW of Crawford.
On pine ridge of gravel and sand; pine woodland. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 13 air mi NW of Crawford at Roundtop Mountain.
Mountain of pine in rock and sand soils pine woodland. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 18-18.5 air mi NW of Crawford and 0.5 mi N of Orella Road, Whitehead Creek.
West side drainage of creek. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 8-8.5 air mi NW of Edgemont and 3 mi W of County Road 9.
On mesa tops and slopes; sand and rock soil. Phenology: buds.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 30-31 air mi NW of Crawford and 0.5 mi N of Indian Creek Road.
On buttes of gravel and rock. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 35-35.5 air mi NW of Crawford and ca 0.5 mi S of Forest Road 931.
Grass upland. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: 10 air mi NW of Edgemont.
North northeast-face of butte; soil is sand and silty clay; selenium may be present due to presence of Stanleya pinnata plants. 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., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 15 air mi N of Crawford, 1/4 mi E of Sugarloaf Butte.
Agate rock bed, interspersed with sand and clay limestone soils. 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, Custer County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.
Rock slopes and buttes of Juniper leading into clay based drainages. Phenology: buds.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 8.5 air mi WNW of Edgemont and 2.5 air mi N of U.S. Hwy 18 in side drainage of Moss Agate Creek.
Draw bottom. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 2-2.5 air mi SSW of Wall and 1/4 mi W of SD Hwy 240.
In a Hesperostipa comata plant community on a rocky upland and nearby butte. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 1 air mi SSE of Wall and adjacent to the Badlands National Park boundary line fence.
Badlands cliffs; upland soils are of clay loam with cliff edges eroding into clay layers. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Scenic and due E of County Road C589.
In deep drainage of heavy white clay soil and near uplands of Hesperastipa comata grass plant community. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 9 air mi SE of Ardmore, South Dakota and 3.5 air mi due S of South Dakota.
In Nassellus viridula plant community on gentle rolling uplands of silt soils. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 6-6.5 air mi SE of Ardmore, South Dakota and 3 air mi due S of South Dakota.
In Nassellus viridula plant community on gently rolling uplands of silty soils. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 12 air mi ESE of Ardmore, South Dakota and 1/2 mi due S of South Dakota.
In Nassellus viridula plant community on gentle rolling uplands of silt soil. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 15 air mi SE of Ardmore, South Dakota.
At base and ridge top of eroded limestone banks in clay soils. Phenology: flowering.

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 12-12.5 air mi SE of Ardmore, South Dakota.
In rock bed with silt and clay soils. Phenology: flowering.

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 30-31 air mi NNW of Crawford and 3/4 mi SW of McMeekin Reservoir.
On a butte top with gravel and silt soil. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 2 air mi SW of Cottonwood.
On grass covered butte, soils are gravel and silty loam. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 3 air mi SSW of Cottonwood.
On grass covered butte, soils are gravel and silty loam. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi SE of Cottonwood.
On gently rolling prairie uplands, soils are gravel and silt loams. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7.5-8 air mi SSE of Wall in Bloom Basin.
Soils are deep heavy white clay. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo 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.
On rolling prairie uplands dissected by deep drainages; soils are loam to loamy clay. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 8.5 air mi SE of Oelrichs; Slim Butte Creek.
On north aspect of slopes and banks; soils are loam to loamy clay. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi SE of Oelrichs immediately adjacent to Forest Road 7023.
Rolling prairie uplands and hilltops; soils are gravel and silt loam. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi SSE of Oelrichs and ca 5 air mi due E of SD Hwy 385.
Rolling prairie uplands and hilltops; soils are gravel and silt loam. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 5.5 air mi NW of Toadstool Geologic Park and 1/4 mi due N of Orella Road.
Typic badlands habitat; soils are deep heavy white clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 10 air mi SW of Wall and 1/4 mi due N of Badlands National Park boundary in Sage Creek.
Soils are silty loam. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Near Guernsey.
42.2698° N, 104.7444° W; NAD 83, uncertainty 1 mi., Digital Map
Rocky hillside. Flowers nearly white. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Haystack Range.
42.3298° N, 104.6455° W; NAD 83, uncertainty 1 mi., Digital Map
Grassland. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southeastern Plains: Goshen Hole: Fort Laramie National Historic Site: southern BLM tract ca 1.7 air mi SW of Fort Laramie (town).
Crest of ridge capped by alluvium gravel and limestone with gravelly silt loam, southwest slope 15%; Stipa comata - Bouteloua gracilis - Carex filifolia herbaceous vegetation; associated species are Andropogon hallii, Evolvulus nuttallianus, Uncommon. Phenology: fruiting.
with Luanne Lum

U.S.A., Wyoming, Platte County: Camp Guernsey: near Sam Draw, ca 3.2 km W of Webb Canyon Road (Wyo Hwy 270).
Elev. 1554 m.
Common in pine/juniper woodland in uplands on gentle to moderate slopes in duff with interspersed sandstone cobbles with Haplopappus acaulis, Juniperus scopulorum, Pinus ponderosa, and Ribes spp. Phenology: flowering.
Patricia P. Douglas, 273. 6/16/1995.
with C. A. Popolizio, R. M. Smith

U.S.A., South Dakota, Meade County: White Gate Ranch, near mouth of Little Elk Creek.
T3N R6E S5
Above road. Phenology: flowering.
with G. W. Parmelee, Stella M. Wilson, and P. G. Coleman

U.S.A., South Dakota, Lawrence County: Lead.
Phenology: flowering.
Annotated by James Grimes in 1991.

U.S.A., South Dakota, Custer County: Fairburn.
On red foothills; grass and sage association; xero-mesophyte. Phenology: flowering.

U.S.A., South Dakota, Custer County: Buffalo Gap.
T6S R7E S29
On red foothills; grass and sage association; xero-mesophyte. Phenology: flowering.

U.S.A., South Dakota, Custer County: Black Hills: Wind Cave.
T6S R5E S1
On foothills; grass association; xero-mesophytic. Phenology: flowering.

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: Hell Canyon.
On open southwest-facing slope; near canyon bottom; S of sewer lagoon. Elev closer to 5200 f (USGS 7.5') G. Bryson Phenology: flowering.

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: ridgetop S of U.S. Highway 16, along well line.
T4S R2E S1
In disturbed soil; in ponderosa pine forest. Phenology: flowering.
Annotated by James Grimes in 1991.

U.S.A., South Dakota, Custer County: Harney National Forest: BHM.
On 10% south slope; rocky loam soil; grass-weed type. Elev closer to 6000 6100 f (USGS 7.5') G. Bryson Phenology: flowering.
Accession: USFS 508591, Barcode: USFS0068589

U.S.A., Colorado, Yuma County: Wray.
Phenology: flowering & fruiting.
Annotated by James Grimes in 1991.
George E. Osterhout, 4021. 8/4/1909.
Accession: RM 164785

U.S.A., Colorado, Sedgwick County: Julesburg.
Phenology: flowering.
Accession: RM 164786

U.S.A., Colorado, Weld County: Near Keota.
Phenology: flowering & fruiting.
Accession: RM 164784

U.S.A., Wyoming, Converse County: Laramie Range: Spring Creek valley off Glendo or County Road 6, ca 16 air mi NE of Laramie Peak, ca 5.3 air mi NE of Esterbrook; ca 21 air mi SSE of Douglas.
At the edge of the channel and lower slopes. Phenology: flowering & fruiting.
Annotated by B. A. Packer.
Accession: (unaccessioned)

U.S.A., Colorado, Yuma County: Vicinity of Willow Creek.
Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie Range: along unnamed branch of Horseshoe Creek, ca 2 air mi NE of Esterbrook; ca 32 air mi SE of Douglas.
North facing slope with sagebrush and grasses. Phenology: fruiting.
with T. McGowan

U.S.A., Wyoming, Converse County: Laramie Range: along Indian Creek, ca 7 air mi NW of Esterbrook; ca 17 air mi SW of Douglas.
Heavily grazed northwest facing cow pasture. Phenology: fruiting.
with T. McGowan

U.S.A., Wyoming, Platte County: Laramie Range: ca 6 road mi from Glendo on County Road 614.
Along roadside and in canyons. Phenology: fruiting.
with T. McGowan & T. Freeman

U.S.A., Wyoming, Converse County: Powder River Basin: ca 6 mi NE of Douglas, off Wyo Hwy 59.
Sparse in sagebrush-grassland with Allium, Lupinus, and Koeleria. Phenology: flowering.
Annotated by J. Grimes in 1991.
with Linda Nelson

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 31 mi NNW of Gillette on U.S. Hwy 14-16, then 11.4 mi NNE on Recluse-Olmstead Creek Road, 2.5 mi E of road, ca 8 1/4 mi NE of Recluse.
Frequent in clay of sagebrush-grassland with Allium, Koeleria, and Astragalus. Phenology: flowering.
Annotated by James Grimes , James Grimes in 1991.
with Linda Nelson

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 10 air mi NE of Wheatland on county road at Little Cottonwood Draw, E of Missouri Basin Power Station.
Sparse in sandy clay in upland grassland with Allium, Gaura, and Penstemon.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 18.5 air mi NE of Lusk, Hat Creek Breaks.
In sandy upland grassland with Carex filifolia. Occasional. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Powder River Basin: ca 6.5 air mi WNW of Parkman, ca 12 air mi NW of Dayton.
Upland grassland. Phenology: flowering.
Annotated by J. Grimes in 1991.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
S-facing slope with scattered pines, sandy soil with sandstone outcrops.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Grassy slopes below quarry.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Grassy south and east-facing slopes and ridge top.

Grassland.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Lytle Creek and Newton Hill, ca 8.5 air mi ESE of Devils Tower.
Pine-oak forest with many openings (logged).

Mountain mahogany thicket.

Rocky slopes and ridgetops with scattered pines and junipers.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: summit Sheep Nose (Sheep Mountain), ca 6.5 air mi N of Sundance.
Summit-- grassland on rocky soil with cliffs and outcrops of whitewood dolomiticlimestone.

Grassland and eroded slopes N of old highway 14; Spearfish shale (redbeds).

U.S.A., Wyoming, Crook County: Black Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.
Pine ridge with grassland understory.

U.S.A., Wyoming, Weston County: Black Hills: Stockade Beaver Creek drainage between Sherwood and Sheldon Canyons; ca 6 air mi ENE of Newcastle.
South facing slope with mountain mahogany, rocky-sandy soil.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
West and south-west facing slopes with pines and junipers.

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

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Rocky slopes, stream margins, ponderosa pine woodland, juniper slopes; plains. Phenology: flowering.
with Ronald L. Hartman

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 15.5 mi ESE of Reno Junction.
Sagebrush plains, ponderosa pine covered slopes, sandstone outcrops; plains, slope.
with Ronald L. Hartman and Mary Alice Sanguinetti.

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Small pond, along roadway, adjacent outwash from plains, and eroded plains; outwash, plains. Phenology: flowering.
with Ronald L. Hartman and Mary Alice Sanguinetti.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 9 air mi NNE of Soda Wells.
Eroded plains, small draw; eroded plains. Phenology: flowering.
Annotated by James Grimes , James Grimes in 1991.
with Ronald L. Hartman and Mary Alice Sanguinetti.

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Ponderosa pine slopes, eroded plains; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: along Eightyfive Divide; ca 7 air mi S of Montana, 5 mi E of Hwy 59.
Rolling plains and sandstone outcrops; plains. Phenology: flowering.
Annotated by James Grimes on 8//1991.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 2.5 air mi SW of Rockypoint.
Rocky slope, ponderosa pine hills, deep ravine; slopes. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: Fletcher Canyon.
Dissected plain and open canyon slopes; plains. Phenology: flowering.
Annotated by James Grimes on 8//1991.

Heavily grazed plains and butte, eroded slopes, small holding pond; slopes. Phenology: flowering.
Annotated by James Grimes , James Grimes in 1991.

Roadside, plains, ridge; ridge. Phenology: flowering.
with Mary Alice Sanguinetti

Plains along road; right-of-way. Phenology: flowering.
with Mary Alice Sanguinetti

Eroded uplands, ponderosa pine ridges, ravines, sagebrush plains, open clayey slopes, loose talus; plains. Phenology: flowering.
Annotated by James Grimes on 8//1991.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 11 air mi NW of Weston.
Rocky slope, clinker outcrops, plains, ravine, wet soil in draw, below holding dam; plains. Phenology: flowering.

Sandstone uplift, outcrops, sandy plains, small holding pond, ponderosa pine slopes; pine slopes. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 20 air mi N of Spotted Horse.
Pine covered ridges, ravines, loose talus slopes, grassland, slopes; open slopes. Phenology: flowering.

Plains, draw, eroded slopes; plains. Phenology: flowering.

Eroded plains, draw, holding pond; plains.

Ponderosa pine covered buttes, steep shale and talus slopes, sagebrush plains at summit, ravines; plains. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 4 air mi ENE of Adonis.
Sagebrush plains, ponderosa pine slopes, ravines, eroded slopes, creek bottom; plains. Phenology: flowering.

Sagebrush plains along highway right-of-way; plains. Phenology: flowering.
Annotated by James Grimes , James Grimes on 8//1991.

Scoria topped butte, loose talus slopes, plains; slopes.

Rolling plains, eroded, sandy slopes, sandstone outcrops, small peak; plains. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 6 air mi NE of Soda Wells.
Eroded slopes, ravines, ponderosa pine slopes, wet ditches, plains; plains. Phenology: flowering.

U.S.A., Wyoming, Johnson County: [location and coordinates withheld]
Shale ridge-outcrops, covered with ponderosa pine, sagebrush grasslands, eroded slopes, wet depressions and small holding pond, draws; plains. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Powder River Basin: Powder River Breaks.
Clay slopes, bottoms of draws, sagebrush plains on level areas; plains. Phenology: flowering.

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

U.S.A., Wyoming, Johnson County: [location and coordinates withheld]
Rolling, hilly plains over scoria base, occasional outcrops, rocky pine slopes; plains. Phenology: flowering.
Annotated by J. Grimes in 1991.

U.S.A., Wyoming, Johnson County: Powder River Basin: S of I-90, ca 3 air mi ESE of Buffalo.
Stony hills just south of the highway.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 3 air mi E of Lake De Smet.
High, rocky ridge, gravelly crest with clinker, sagebrush plain at base; slopes. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: U.S. Hwy 14-16, ca 6 mi SE of Horse Creek Butte.
Road cut and edge of rolling plains.
with Keith Dueholm

U.S.A., Wyoming, Campbell County: Powder River Basin: Chicken Creek Divide, 2.5 mi N of Spotted Horse.
Ridge, slopes, badly eroded valleys, and plains; sandy slope. Phenology: flowering.
Annotated by James Grimes , James Grimes on 8//1991.
with Keith Dueholm

U.S.A., Wyoming, Campbell County: Powder River Basin: near the Powder River, ca 17 air mi NNW of Spotted Horse.
Eroded hills overlooking river; open slope. Phenology: flowering.
with Keith Dueholm

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 18 air mi SE of Gillette.
Hill with grassy ridge and steep slopes, eroded slopes, and roadside; lower slope.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 7 air mi ESE of Gillette.
Stream with adjacent eroded hills and plains; rocky hill top. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 21 air mi SSE of Gillette.
Rocky outcrop at summit of hill. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 15.5 air mi ESE of Reno Junction.
Eroded hills with ponderosa pine. Phenology: flowering.
with Keith Dueholm and Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 19 air mi NNE of Gillette.
Low eroded slopes and drainage. Phenology: flowering.
with Keith Dueholm and Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 11.5 air mi NNE of Weston.
Open slopes and drainage. Phenology: flowering.
with Keith Dueholm and Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 12 air mi NE of Weston.
Ponderosa topped hills and flats below. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 18 air mi WNW of Rockypoint.
Eroded hills with ponderosa pine. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: Eighty-five Divide, ca 11 air mi W of Rockypoint.
Hills with sandstone outcrops. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 9 air mi SW of Gillette.
Low hills with drainage and large shallow pond on flat. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 22 air mi NNE of Sussex.
Elev. 4400
Eroded slopes and flats. Phenology: flowering.
Annotated by James Grimes , James Grimes on 8//1991.

U.S.A., Wyoming, Sheridan County: Wildlife Refuge; ca 3 air mi W of Dayton.
Limestone (gypsum?) outcrop above Chugwater formation red beds; ridge. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Powder River Basin: Smith Creek, ca 7.3 air mi WNW of Dayton.
Outcrops of limestone (gypsum?) atop Chugwater Formation red beds. Phenology: flowering.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: at the head of Webb Canyon on Wyo Hwy 270, ca 4.5 air mi N of Hartville; ca 8.5 air mi N of Guernsey.
Slopes below limestone cliffs. Phenology: flowering.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: between Rocky Pass and Long Canyon, ca 1.3 air mi NW of Hartville; ca 4.7 air mi N of Guernsey.
Rocky slopes below limestone flats with scattered junipers and ponderosa pine. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: above Horse Creek just N of Laramie County, ca 12 air mi SW of La Grange; ca 36 air mi SSW of Torrington.
Shortgrass plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Horse Creek and adjacent plains W of County Road 191, ca 4 air mi S of La Grange; ca 34 air mi S of Torrington.
Mixed grass plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: W of Deer Creek or County Road 19, ca 2.5 air mi S of the North Platte River; ca 3.3 air mi SW of Glenrock.
Sandy mixed grass slopes. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: just N of Glendo Dam on Glendo Park Road, ca 4.2 air mi ESE of Glendo; ca 18.3 air mi NW of Guernsey.
Rolling sandy grassland. Phenology: fruiting.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
Stony slopes and flats in ponderosa pine woodland. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: between Whalen Canyon or County Road 202 and the head of Sparks Canyon, ca 1.5-2.2 air mi ESE of Hartville; ca 4.5 air mi NE of Guernsey.
Sandy grassland. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: Haystack Range: Hell Gap and vicinity on Whalen Canyon or County Road 202, ca 10 air mi NE of Guernsey; ca 14.5 air mi NW of Fort Laramie.
Stony slopes with some limestone and scattered juniper and ponderosa pine. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Marble or County Road 167 ca 1 air mi E of the Marble Quarry N of Marble Quarry Creek, ca 13 air mi W of Wheatland.
Sagebrush-grassland slopes and benches with fine gravelly soils and cobblestones. Phenology: flowering.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Diamond or County Road 104 ca 0.5 air mi E of Richeau Creek, ca 8.3 air mi W of Chugwater; ca 20 air mi S of Wheatland.
Cobblestone slopes with grasslands in shallow swales and draws. Phenology: flowering.
Annotated by Laura Welp.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 1 air mi N of Chivington Draw along County Road 226 ca 12.5 air mi N of Burns, ca 28 air mi NE of Cheyenne.
Sandy rolling grass plains with areas of shallow soil and exposed bedrock. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: S of the head of Hefflen Draw, ca 1.5 air mi ENE of the eastern three Buttes, ca 6.5 air mi SSE of Lingle; ca 7.3 air mi WSW of Torrington.
Edges and bottoms of gullies below outcrops. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Southern 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.
Roadside through the stream valley. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along Cottonwood or County Road 42 ca 1.5 air mi S of Cottonwood Creek, ca 9 air mi W of Guernsey; ca 15 air mi N of Wheatland.
Mixed grass grassland with sand-, clay-, and siltstone outcrops. Phenology: fruiting.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along I-25 ca 1 1/4air mi S of Little Bear or Exit 39, ca 27 air mi N of Cheyenne.
Sandy rolling grassland with sandstone ridges and knolls. Phenology: 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: fruiting.

U.S.A., Wyoming, Converse County: [location and coordinates withheld]
Sandy grasslands and road cuts. Phenology: flowering.

U.S.A., Wyoming, Albany County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 3 air mi E of Esterbrook.
Sandy slope and plains with grassland and occasional ponderosa pine. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 14 air mi SSE of Esterbrook.
Sandy plains. Phenology: buds.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
Limestone outcrops and calcareous grasslands with juniper. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 7.5 air mi W of Wheatland.
Short-grass prairie. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34, ca 4 air mi E of Albany County.
Sandy plains with short-grass prairie. Phenology: flowering.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
Calcareous slopes and sandy flats. Phenology: fruiting.

Sandy slopes. Phenology: fruiting.

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: 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: 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: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34 and I-25 interchange, ca 7 mi S of Wheatland.
Sandy slopes and stream bottom. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Powder River Basin: ridge between Stockade Beaver and Whoopup Creeks, ca 11.5 air mi SSE of Newcastle.
Sandstone ridge with scattered ponderosa pine and juniper. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Black Hills: Elk Mountains: at the South Dakota state line, ca 14 air mi SE of Newcastle.
Ponderosa pine slopes and small grassy openings. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black 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.
Dry, sandy, open Ponderosa pine slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Little Missouri River Breaks: ca 20 air mi N of Hulett, ca 38 air mi NNW of Sundance.
Pine-oak savannah. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Rattlesnake Canyon: ca 4.5 air mi NE of Moskee; ca 14 air mi ESE of Sundance.
Ridgetop logged pine forest. Phenology: flowering & fruiting.
with Hollis Marriott

Dry open rocky (Minnekahta limestone) fields with scattered Ponderosa pine and Rocky Mountain juniper. Phenology: flowering & fruiting.
with Dennis Horning

S-facing slope with scattered pines, sandy soil with sandstone outcrops. Phenology: flowering.

Grassy slopes below quarry. Phenology: flowering & fruiting.

Grassy south and east-facing slopes and ridge top. Phenology: flowering & fruiting.

Grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Lytle Creek and Newton Hill, ca 8.5 air mi ESE of Devils Tower.
Pine-oak forest with many openings (logged). Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: tributary to Road Creek off The Bank Land, (Graham Ranch), ca 13 air mi W of Sundance.
Ponderosa pine-juniper woodland; southwest-facing slopes and ridge with sandstone rimrock and boulders. Phenology: flowering & fruiting.

Mountain mahogany thicket. Phenology: flowering & fruiting.

Rocky slopes and ridgetops with scattered pines and junipers. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: summit Sheep Nose (Sheep Mountain), ca 6.5 air mi N of Sundance.
Summit-- grassland on rocky soil with cliffs and outcrops of whitewood dolomiticlimestone. Phenology: flowering & fruiting.

Grassland and eroded slopes N of old highway 14; Spearfish shale (redbeds). Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.
Pine ridge with grassland understory. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Taylor Divide, ca 8.5 air mi S of Alva.
Grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Goldie Divide near junction of Goldie and New Haven roads, ca 5 air mi NW of Hulett.

U.S.A., Wyoming, Crook County: Black Hills, Coal Divide just N of I-90 (near parking area), ca 9 air mi SW of Sundance.

U.S.A., Wyoming, Weston County: Black Hills: Stockade Beaver Creek drainage between Sherwood and Sheldon Canyons; ca 6 air mi ENE of Newcastle.
South facing slope with mountain mahogany, rocky-sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Grassland in canyon bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Inyan Kara Mountain (east half).
Grassy east facing slope on outer mountain. Phenology: flowering & fruiting.

Grassland on rocky soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Black Hills, Elk Mountain area near Mix Spring (USFS Road 818), ca 13.5 air mi SE of Newcastle.
Grassy meadow in ponderosa pine forest (canyon bottom). Phenology: flowering & fruiting.

West and south-west facing slopes with pines and junipers. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Black Hills: Cold Springs Creek near state line; ca 7 air mi NE of Four Corners.
Grassland on south facing slope. Phenology: flowering & fruiting.

Sagebrush-grassland (Artemisia cana and A. tridentata). Phenology: flowering & fruiting.

Pine forest on south-east facing slope above limestone cliffs. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Black Hills: Summit Ridge near lookout (W of Boles Canyon), ca 7.5 air mi E of Newcastle.
Grassy opening in pine forest on ridgetop, rocky soil (limestone). Phenology: flowering & fruiting.

Ponderosa pine forest with Andropogon scoparius, Stipa comata. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Powder River Basin: ca 3 air mi SE of Rochelle.
Plains, sagebrush, and small draw, gullyside; plains. Phenology: flowering & fruiting.

Sagebrush plains, shallow drainageways, gravel roadside and wet ditch; plains. Phenology: flowering & fruiting.

Rocky ridge, sandstone outcrops; slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Devils Tower National Monument: ridges SW of Administration Building.
Red beds and sandstone outcrops. Phenology: flowering & fruiting.
with Hollis Marriot

U.S.A., Wyoming, Crook County: Black Hills: ca 7 air mi N of Hulett.
Oak woodlands, sandstone rimrock and sandy lower slopes, prairies, and shaded ravines; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: drainage from Geis Springs to 1.5 mi to the NE, ca 5-6 air mi E of Alva.
Pine woodlands, shaded ravines, logging roads, sandy open slopes, and pond; sandy slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 3 air mi NNE of Beulah.
Prairie and breaks with dry stream; sandy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ridge between Beaver Creek and the Belle Fourche River, ca 5 air mi NNW of Alva.
Sandy ridge with ponderosa pine woodlands and prairies; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 8.5 air mi SE of Hulett.
Wooded stream drainage and sandy prairie; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: 9.5 air mi E of Sundance.
Ponderosa pine slopes, stream bottom, and meadow; wooded slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Boundary Gulch, ca 6 air mi S of Beulah.
Moist stream bottom with Pinus ponderosa dominated sandy slopes; partly open sandy slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Green Mountain, ca 3 air mi E of Sundance.
Plains with outcrops of Chugwater red beds, Pinus ponderosa covered mountain slopes and summit, and moist shaded limestone canyon; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.
Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Powder River Basin: just E of U.S. Hwy 14 on Old Sundance Road, 4 air mi NE of Moorcroft.
Rolling sagebrush hills and moist drainages; sagebrush slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 7.5 air mi SE of Sundance.
Pinus ponderosa covered ridge and open sandy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: lower slopes of Hooker Peak and plains to the NW, 7-8 air mi SSE of Sundance.
Plains, Pinus ponderosa wooded slopes, moist open drainages and stock pond; moist drainage and adjacent slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Rockyford.
Phenology: fruiting.

U.S.A., Wyoming: Black Hills.
Phenology: fruiting.
Aven Nelson, s.n.. 7//1910.

U.S.A., Wyoming, Crook County: Bear Lodge Mountains.

U.S.A., Wyoming, Crook County: Sundance.
Shallow upland. Phenology: flowering.

U.S.A., Wyoming, Weston County: Ca. 22 air mi SSE of Newcastle, near artesian well N of Beaver Creek.
T41 R60W S7
Ronald G. Schreibeis, DT-185. 5/18/1976.

U.S.A., Wyoming, Crook County: Black Hills: Keyhole Reservoir, McKean site.
T51N R66W S31
Pine ridge. Phenology: fruiting.

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: site ca 1.2 km ESE of Peak 4152 (34000, 4967300), ca 400 m NE of Peak 4355 (337180, 4968280). 337360E 4968640N.
Elev. 1290 m.
North to west-facing slope (20-30 degrees) on Artemisia grassland; soil series 305 Worfka-Shingle-Samday complex, with Artemisia tridentata, A. frigida, Stipa comata, Tragopogon dubius, Koeleria macrantha. Phenology: flowering.
Patricia P. Douglas, 382. 6/9/1998.
with N. Hastings

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: site upslope, ca 2.6 km NE of Peak 4236 (335200, 4967300), 2.4 km NNW of Peak 4290 (336500, 4967320). 336100E 4969800N.
Elev. 1230 m.
South-facing slope (20-30 degrees) on Artemisia grassland on clay loam, soil series Parmleed-Worfka association, with Artemisia tridentata, Pediomelon argophyllum, Stipa viridula, Elymus smithii, Bromus sp. Phenology: flowering.
Patricia P. Douglas, 50. 7/3/1997.
with N. Hastings

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: site ca 2.0 km NE of Peak 4290 (336500, 4967320), 1.1 km W of Peak 4244 (338560, 44969020). 337420E 4969160N.
Northwest-facing 0-30 degree slope on Artemisia grassland on sandy loam with pebbles and cobbles, soil series Renohill-Worfka association, with Artemisia tridentata, A. cana, Stipa comata, S. viridula, Aristida purpurea. Phenology: flowering.
with N. Hastings

U.S.A., Montana, Carbon County: Cooney Reservoir along Red Lodge Creeek Road, on south side of reservoir W of dam, ca 18 air mi N of Red Lodge.
Slopes around reservoir with sandy soils in mixed Artemisia cana and annual weedy forbs/grasses. Phenology: flowering.
with Brian Elliott

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: on Exie Road (Forest Road 3119), above and along North Tie Creek, ca 10 air mi WNW of Camp Crook, SD.
Barren clay slopes with patches of vegetation and outwash flats below. Phenology: flowering.
with Hans Hallman
Accession: USFS 888409, Barcode: USFS0054561

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: along and E of Carter Gulch, ca 2.5 air mi SE of Ekalaka.
Open slopes. Phenology: flowering.
with Hans Hallman
Accession: USFS 888408, Barcode: USFS0054560

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: on Forest Road 3102A ca 1-1.5 air mi SE of junction of Mont Hwy 323 and Prairie Dale Road, ca 8-8.5 air mi SE of Ekalaka.
Steep ponderosa pine covered slopes with cliffs. Phenology: flowering.
with Hans Hallman

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: just S of SD Hwy 20 at Reva Gap and in The Castles, ca 18.5 air mi E of Buffalo.
Badlands with grassy patches and strips. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: ca 0.5 air mi W of SD Hwy 79 on South Divide Road (Forest Road 3148) in and along Deer Draw, ca 23 air mi SE of Buffalo.
Grassy south-facing slopes with scattered ponderosa pine and exposed areas. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: South Cave Hills: N of Brown Johnson Road and Dry Creek, ca 13.5 air mi N of Buffalo.
Rocky slope of butte. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just W of South Dakota above North Slick Creek and Mill Iron Road, ca 9 air mi NNW of Camp Crook, SD.
Swale. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: Red Shale Campground and vicinity on U. S. Hwy 212 above East Fork Otter Creek, ca 6 air mi E of Ashland.
Open ponderosa pine slopes. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: on the divide between East Fork Otter Creek and Wilbur Creek on Wilbur Creek (Forest Road 4775), ca 13 air mi E of Ashland.
Meadow and logged area. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: near the head of Schleichart Draw ca 0.5 air mi W of Riley Pass, ca 18 air mi N of Buffalo.
Sandy slopes below the sandstone cliffs. Phenology: fruiting.

U.S.A., South Dakota, Harding County: Custer 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.
Grass-forb meadow and open ponderosa pine woods. Phenology: fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: ca 1 air mi W of SD Hwy 79 on JB or Forest Road 115 at southwest end of Square Top Butte, ca 22 air mi SE of Buffalo.
Grass-dominated slopes below siltstone cliffs and outcrops interspersed with badlands. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: between Sawmill Canyon and Devils Canyon, ca 6.5 air mi WNW of Ludlow.
Open sagebrush grassland. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: in Schleichart Draw, just N of Forest Road 3120, ca 0.5 air mi W of Schleichart Draw Reservoir, ca 5.5 air mi W of Ludlow.
Sandy slope above hardwood draw. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: near terminus of eastern-most fork of North End or Forest Road 3124 in and around Mitchell Draw near Lena Spring Number 2, ca 3.5 air mi N of Reva Gap, ca 17.5 air mi E of Buffalo.
Sandy, rocky slope above hardwood draw. Phenology: flowering.
with Grace Kostel, B. E. Nelson

U.S.A., South Dakota, Harding County: East Short Pine Hills: ca 0.5 air mi N of Forest Road 3111, ca 6 air mi E of Harding.
Grasslands interspersed with badlands.

U.S.A., South Dakota, Harding County: S of SD Hwy 20 ca 3.5 air mi ESE of Jumpoff Divide, ca 9.5 air mi W of Buffalo.
Grass-dominated open, rolling grazing land. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer 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.
Grassland with partially burned, open ponderosa pine forest. Phenology: flowering & fruiting.

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.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: around Aspen Spring, ca 0.5 air mi S of Red Hill and ca 4.5 air mi E of Ekalaka.
Mixed ponderosa pine, hardwood thickets, and grassland. Phenology: flowering.

U.S.A., Montana, Carter County: Along Tie Creek Road ca 0.5 air mi S of Belltower Butte ca 24 air mi SSE of Ekalaka.
Ponderosa pine and green ash upland mixed with open, grass-dominated areas. Phenology: flowering.

U.S.A., Montana, Carter County: Custer 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.
Top of butte along and near edge of rock face, dominated by ponderosa pine and grasses. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer 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.
Upland woodland dominated by ponderosa pine and grasses; mostly shallow, rocky soils with some rock outcrops. Phenology: fruiting.

U.S.A., Montana, Carter County: Custer 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.
On and around a chalky bluff sparsely wooded with ponderosa pine and dominated with grasses. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer 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.
Historic partial burn with sparse ponderosa pine woodland dominated by grasses. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer 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.
Upland sparsely wooded with ponderosa pine and dominated by grasses. Phenology: fruiting.

U.S.A., South Dakota, Harding County: On the west side of The Jumpoff, ca 1 air mi E of County Road 897 and ca 3 air mi S of SD Hwy 20, ca 7.5 air mi ESE of Camp Crook.
Hillside dominated by green ash and grasses. Phenology: fruiting.

U.S.A., South Dakota, Harding County: Custer 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.
Butte tops dominated by grasses. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: just SW of Summit Pass on SD Hwy 79, ca 23.5 air mi SE of Buffalo.
Open ponderosa pine and grass woodland. Phenology: fruiting.

U.S.A., Montana, Powder River County: Custer 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.
Ponderosa pine and grass-dominated upland. Phenology: fruiting.

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: fruiting.

U.S.A., Wyoming, Converse County: Cow Creek Road: ca 8 mi S of Dull Center.
Clay barrens, with Oonopsis multicaulis, Erigeron ochroleucus. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: ca 0.5 air mi E of Fletcher Reservoir between Forest roads 4792 and 47921, ca 27.5 air mi SSE of Ashland.
Ponderosa pine and grass-dominated draw leading into grass-dominated meadow. Phenology: flowering.

U.S.A., Montana, Powder River County: Ca 0.5 air mi W of Otter Creek Road, ca 0.5 air mi S of Custer National Forest boundary, ca 30 air mi SSE of Ashland.
Grass and Artemisia frigida dominated meadow. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: Icebox Canyon, ca 17 air mi N of Buffalo.
Grass-dominated meadow. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: just WNW of Riley Pass, among uranium mine tailings, ca 18 air mi NNE of Buffalo.
Disturbed clayey substrate amongst mine tailings. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in upper Cheesman Draw, just S of Forest Road 3045, ca 8 air mi WNW of Camp Crook, SD.
In unburned draw within historic burn, dominated by quaking aspen and ponderosa pine. Phenology: flowering.

U.S.A., Montana, Powder River County: To ca 1.5 air mi NW of Moorehead Road, ca 4.5 air mi WSW of Broadus.
Grass and sagebrush-dominated grazing land with scattered badlands. Phenology: flowering.

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.
Ponderosa pine-dominated forest with scattered rock outcrops and grass-dominated openings. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer 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.
Ponderosa pine forest with grass-dominated openings, with Rhus, Rosa, and Balsamorhiza patches. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., South Dakota, Harding County: Custer 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.
Ponderosa pine and grass-dominated forest above moist hardwood draw. Phenology: fruiting.

U.S.A., Montana, Powder River County: Custer 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.
Grass and sagebrush-dominated meadow. Phenology: fruiting.

U.S.A., Montana, Powder River County: Custer 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.
Grass and sagebrush-dominated grazing land. Phenology: fruiting.
Accession: USFS (unaccessioned), Barcode: USFS0057380

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: fruiting.

U.S.A., Montana, Powder River County: Custer 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.
Ponderosa pine-dominated woodland. Phenology: fruiting.

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: fruiting.

U.S.A., Montana, Valley County: On Little Beaver Road just inside BLM boundary, ca 1 air mi NE of January Reservoir, ca 8.5 air mi SW of Glasgow.
Rolling grassland-forbs on clay soil with gullies and drainages. Phenology: flowering.
with Joseph L. M. Charboneau

U.S.A., Montana, Phillips County: Along Harb Road in the head region of the "East Fork" Moss Coulee, ca 15.5 air mi SSW of Saco; ca 23.5 air mi ESE of Malta.
Sedge-grassland with fringed sage and scattered patches of silver sagebrush and stony knolls. Phenology: fruiting.

U.S.A., Montana, Phillips County: Larb Hills (South): at the head of Telegraph Creek, ca 47 air mi S of Saco; ca 44 air mi SSE of Malta.
Open ridgetop and flats with rocky areas. Phenology: fruiting.

U.S.A., Montana, Phillips County: Larb Hills (South): near the head of South Fork Shotgun Coulee ca 1 air mi N of Coal Mine Hill, ca 44-45 air mi S of Saco; ca 40 air mi SSE of Malta.
Grassy slopes with exposed clay patches, rocky knolls, and swales. Phenology: fruiting.

U.S.A., Montana, Phillips County: Along North Forks Road, ca 11 air mi NE of Whitewater; ca 36 air mi NNE of Malta.
Gravelly roadside. Phenology: fruiting.

U.S.A., Montana, Valley County: On ridge between Duck Creek and Upper Eighth Coulee along Road 329, ca 1.5 air mi NW of Graveyard Hill, ca 26.5 mi SW of Fort Peck.
Sandy flats and sandy roadside. Phenology: flowering.
Joseph L. M. Charboneau, 69. 6/15/2010.

U.S.A., Montana, Valley County: On Britsch Road, ca 3 air mi SSW of Ada Reservoir, ca 12 air mi NE of Hinsdale.
Gravelly roadside ditch in otherwise clay soil. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 138. 6/21/2010.

U.S.A., Montana, Valley County: Just off Larb Creek Road along Harb Road in Hadly Coulee, ca 3 air mi NNW of Spencer Point, ca 12 air mi SW of Hinsdale.
Hills with sagebrush-grasslands on loamy soil. Phenology: flowering.
Joseph L. M. Charboneau, 238. 6/21/2010.

U.S.A., Montana, Valley County: On Ridge Road, on ridge above Tony Coulee, ca 2.5 air mi SW of Finn Reservoir, ca 36 air mi SW of Glasgow.
Sandy sagebrush-grasslands. Phenology: flowering.

U.S.A., Montana, Phillips County: On Black Coulee Road, in Coburg Coulee and ridge to the W, ca 4 air mi WSW of Haystack Butte, ca 12 air mi SE of Turner; ca 31 air mi NW of Malta.
Rocky hilltops. Phenology: flowering.

U.S.A., Montana, Valley County: Larb Hills (North): W of South Bench Road, Tank Coulee and ridge above it, ca 4 air mi ENE of Ashford Spring, ca 2 air mi SSW of Hinsdale; 25 air mi NW of Glasgow.
Sagebrush-grasslands on loamy to sandy soil. Phenology: fruiting.

U.S.A., Montana, Valley County: W of U.S. Hwy 2 in Mooney Coulee, ca 5 air mi SSE of Cornwell Reservoir, ca 8 air mi NNW of Glasgow.
Grasslands on sandy soil with hillsides. Phenology: flowering.

U.S.A., Montana, Valley County: W 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.
Sagebrush-grasslands on clayey soil. Phenology: fruiting.

U.S.A., North Dakota, Ward County: Des Lacs National Wildlife Refuge: west side Upper Des Lacs Lake, 1 mi S of U.S. Highway 52 bridge.
Rather open vegetation on gravelly south-facing slope. Phenology: flowering.
Neil Hotchkiss, s.n.. 6/18/1942.

U.S.A., North Dakota: Ramsteds Ranch.
Morainic hills. Phenology: vegetative only.

U.S.A., North Dakota, Richland County: Wahpeton.

U.S.A., North Dakota, Barnes County: Valley City.
In stony loam soil on hillside. Phenology: flowering.

U.S.A., Montana, Richland County: Leonard.
Snady prairie. Phenology: flowering.

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

U.S.A., North Dakota, Slope County: Marmarth.
Badlands; top of bluffs. Phenology: flowering.

U.S.A., North Dakota, Sargent County: Rutland.

U.S.A., North Dakota, Cass County: Kindred.
Prairies. Phenology: flowering & fruiting.
Wilhelm G. Solheim, s.n.. 7/4/1929.

U.S.A., North Dakota, Towner County: Cando.
Sand hills. Phenology: flowering.

U.S.A., North Dakota, Cass County: Kindred.
Prairie. Phenology: flowering & fruiting.
Wilhelm G. Solheim, s.n.. 7/4/1929.

U.S.A., South Dakota, Brookings County: Near Brookings.
Hillsides. Phenology: flowering.

U.S.A., Nebraska, Kearney County: Minden.
Phenology: flowering & fruiting.
Harry Hapeman, s.n.. 6/7/1896.

U.S.A., Nebraska, Sioux County: Harrison: Munro Canyon.

U.S.A., Nebraska, Dawes County: 20 mi S of Chadron.
Rolling grassland sandhills. Phenology: flowering.
with Marjorie W. Porter

U.S.A., Nebraska, Sheridan County: Metcalf Public Hunting Grounds, 13 mi N of Hay Springs.
Open ridges and Pinus ponderosa forest; south-facing slopes. Phenology: flowering.

U.S.A., Nebraska, Kimball County: 12 mi NE of Pine Bluffs, WY: near Silo D-8.
Sandy soil; grassland. Phenology: flowering.
with J. Von Loh

U.S.A., Montana: Custer National Forest: Odell Creek.
North slope; deep clay and loose gravelly soil; grass-weed site. Very abundant. Phenology: flowering.
Accession: USFS 508593

U.S.A., Montana: Custer National Forest.
T5S R45E
West slope; shale soil. Phenology: flowering.
Accession: USFS 508594

U.S.A., Montana, Roosevelt County: 4 km N of Culbertson.
Rolling hills; silty range site; associated with Stipa comata, Agropyron smithii; Zahill loam; slope 15%, south-southeast aspect. Scattered. Phenology: flowering.
with Gloria R.B. Mooers

U.S.A., Montana, no county County: Helena National Forest: Favorite Gulch.
Dry, shallow soil; associated with Agropyron and Erigeron. Rare. Phenology: flowering.
Accession: USFS 508592

U.S.A., Montana, Musselshell County: 8 mi S of Roundup.
Rocky slope with yellow pine. Phenology: flowering.
with M. D. Atkins

U.S.A., Montana, Lewis and Clark County: 1 mi N of Wolf Creek.
Shale bank. Phenology: flowering.

U.S.A., Montana, Phillips County: Along Black Coulee Road near the head of Coburg Coulee, ca 20 air mi N of Dodson; ca 29 air mi NW of Malta.
Rocky clay slopes. Phenology: flowering.

U.S.A., Montana, Valley County: Along Roosevelt Trail ca 0.5 mi E of Porcupine Creek and Fort Peck Indian Reservation, ca 5 air mi N of Nashua.
Rolling terrain below and slope of rim with meadows, bare areas, drainage channels, with clay soil, and cobblestone covered areas. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Along Shipp Road above Cherry Creek (S and E), ca 2.5 air mi W of Mont Hwy 24, ca 13 air mi N of Glasgow.
Rolling terrain below and slope of rim with meadows, bare areas, drainage channels, with clay soil, and cobblestone covered areas. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Larb Hills (North): along South Bench Road, E of Tank Coulee, ca 1-1.5 air mi S of Hinsdale.
Rough breaks. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: E of the Milk River in Chapman Coulee just above Riverside Drive and Faraasen Park, ca 7 air mi NW of Glasgow.
Cobblestone slopes and ridges. Phenology: flowering.

U.S.A., Montana, Valley County: Along Bentonite Road, ca 1.5 air mi W of Mahan and Hoyt Reservoir, ca 7 air mi W of Glasgow.
Plains grassland with draws. Phenology: flowering.

U.S.A., Montana, Valley County: Along Harper Ridge Road above and N of Carpenter Creek at the north boundary of Charles M. Russell National Wildlife Refuge, ca 40 air mi SW of Glasgow.
Grassland on sandy soil above the rough breaks. Phenology: flowering.

U.S.A., Montana, Phillips County: Larb Hills (North): above and S of Old U.S. Hwy 2 and BNSF tracks, ca 5.5 air mi W of Saco; ca air mi ENE of Malta.
Rough breaks with clay slopes, swales, and drainage channels. Phenology: flowering.

U.S.A., Montana, Valley County: Ridge between Burnett Creek and Collins Creek E of Rock Creek Road, ca 19 air mi NNE of Hinsdale.
Rolling plains grassland with stony soil and swales. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Along Rock Creek Road at the south edge of Rock Creek Flats, ca 5 air mi S of Thoeny; ca 24 air mi W of Opheim.
Open, stony clay slopes. Phenology: flowering.

U.S.A., Montana, Valley County: At the end of the Montfort Road 2.5-3 air mi S of Vandalia; ca 10 air mi SE of Hinsdale.
Stony slopes and tops. Phenology: flowering.

U.S.A., Montana, Phillips County: Hills E of Chapman above Woody Island Coulee, ca 38 air mi NNW of Malta.
Stony bluffs, flats above, and swales. Phenology: flowering.

U.S.A., Montana, Phillips County: Ridge W of Frenchman Creek, N of Frenchman Road, ca 1/4 air mi SW of Frenchman Reservoir, ca 22.5 air mi NNW of Hinsdale; ca 45 air mi NW of Glasgow.
Grasslands on loamy soil with cobbles on hilltops. Phenology: flowering.

U.S.A., Montana, Phillips County: American Prairie Reserve: W of Reynolds Hill Road, ca 4.5 air mi W of Square Butte, ca 40.5 air mi ESE of Zortman; ca 42 air mi SSE of Malta.
Big sagebrush-grasslands on rolling hills of loamy soil. Phenology: flowering.
with Mark Majerus, Michael Dolan, Noorjahan Parwana, and Katie Butts

U.S.A., Montana, Valley County: Larb Hills (North): S of Beaver Creek, ca 4.5 air mi NNW of Ashford Spring, ca 6.5 air mi WNW of Hinsdale; ca 31.5 air mi NW of Glasgow.
Big sagebrush-grasslands on loamy rolling hills. Phenology: flowering.

U.S.A., Montana, Phillips County: Larb 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.
Silver sagebrush-grasslands on loamy soil on rolling hills with swales. Phenology: flowering.

U.S.A., Montana, Phillips County: Larb 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.
Rolling sagebrush-grasslands on loamy soil with slopes and swales. Phenology: flowering.

U.S.A., Montana, Valley County: Kaminsky Hill and area to the N, ca 3.5 air mi N of the West Fork Poplar River, ca 12.5 air mi NE of Opheim; ca 57 air mi NNE of Glasgow.
Grasslands with shrubby cinquefoil and moist depressions on loamy soil. Phenology: flowering.
with Josh Lamp

U.S.A., Montana, Valley County: Uhlan 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.
Grasslands on hills with slopes and swales on loamy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: N of Cottonwood Creek, ca 9.5 air mi WNW of Fanny Hill, ca 27 air mi WSW of Whitewater; ca 27 air mi NNW of Malta.
Grasslands with occasional silver sagebrush on loamy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Opheim Hills: Slaughter Coulee, ca 6.5 air mi NNE of Pikes Peak, ca 6.5 air mi WNW of Opheim; ca 48 air mi NNE of Glasgow.
Grasslands on loamy to sandy hills with occasional silver sagebrush and creeping juniper. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Matador 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.
Grasslands at base of butte with sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Seventh Ridge, ca 4.5 air mi NE of Graveyard Hill, ca 22 air mi SW of Fort Peck; ca 27 air mi SSW of Glasgow.
Sandstone-based ridge. Phenology: fruiting.

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: fruiting.

U.S.A., Montana, Phillips County: Sand Hills: ca 3.5 air mi SSE of Silver Peak, ca 5.5 air mi SSW of Zortman; ca 49 air mi SW of Malta.
Sandstone ridge with occasional ponderosa pine, juniper, and big sagebrush. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Charles M. Russell National Wildlife Refuge: Mickey Butte, ca 4 air mi ENE of Dry Lake, ca 43 air mi ESE of Zortman; ca 54.5 air mi S of Malta.
Sides of sandstone butte. Phenology: fruiting.

U.S.A., Montana, Phillips County: Hewitt Lake National Wildlife Refuge: W of Hewitt Lake, ca 4 air mi S of the Milk River, ca 8 air mi ESE of Fanny Hill, ca 17 air mi NE of Malta.
Grasslands with silver sagebrush on loamy soil. Phenology: fruiting.

U.S.A., Montana, Valley County: Charles 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.
Grasslands with scattered ponderosa pine and juniper on sandy soil. Phenology: fruiting.

U.S.A., Montana, Phillips County: Little 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.
Open south-facing slopes with ponderosa pine and juniper. Phenology: fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: between Sawmill Canyon and Devils Canyon, ca 6.5 air mi WNW of Ludlow.
Open sagebrush grassland. Phenology: flowering.
Accession: (unaccessioned), Barcode: USFS0050647

U.S.A., Wyoming, Campbell County: Bitter Creek Road ca 3 mi from Montana border.
44° 59.8' N, 105° 50.9' W; unknown, , Specimen Label
Clay bank, with Artemisia and Astralagus. Phenology: flowering.

U.S.A., Wyoming, Platte County: Patten Creek Road ca 12 mi N of Guernsey.
42° 27.1' N, 104° 46' W; unknown, , Specimen Label
Rocky slope, with Pinus ponderosa and Artemisia ludoviciana. Phenology: flowering.

U.S.A., Wyoming, Weston County: Ca 2.5 mi NE of Osage.
44° 0.6' N, 104° 23' W; unknown, , Specimen Label
Gravelly slope, with Artemisia, Tetraneuris. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Hartville.
Sagebrush slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Gillette.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Wyo Hwy 253, ca 9 air mi SE of Casper.
Wide right-of-way with road cut and relatively undisturbed grasslands along fence and drainage with cottonwood and willow. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Campbell County: Gillette.
Sandy banks. Phenology: flowering.
George W. Beatty, 2. 7//1928.

U.S.A., Wyoming, Laramie County: Ca 2 mi W of Albin, ca 0.5 mi S of Wyo Hwy 216.
T17N R61W S25
with J. Von Loh

U.S.A., Wyoming, Sheridan County: Hills SE of Sheridan.
Sandy slope. Phenology: flowering.

U.S.A., Wyoming, Laramie County: Pine Bluffs.
Rocky slope, with Pinus ponderosa, Yucca. White to lavender flowers. Phenology: flowering.

U.S.A., Wyoming, Campbell County:
T46N R74W S18
Dry grassy plains. Phenology: flowering.
Mary Alice Sanguinetti, 325. 7/11/1978.
with Keith H. Dueholm

U.S.A., Wyoming, Campbell County:
Hills with grass, pine, and juniper. Phenology: flowering.
Mary Alice Sanguinetti, 223. 7/8/1978.
with Keith H. Dueholm

U.S.A., Wyoming, Campbell County: Wyo Hwy 59, just N of Converse County.
On sandy roadside with Opuntia polyacantha, Machaeranthera tanacetifolia, Festuca octoflora, Arenaria hookeri, and Lupinus pusillus. Common. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Black Thunder Strip Mining Area: North Prong of Thunder Creek and Little Thunder Creek.
Old field; with western wheatgrss, blue grama, prairie junegrass, fringed sagewort; loany, clayey; Briggsdale and Renohill series. Phenology: flowering.
with D. W. Sabinske

U.S.A., Wyoming, Sheridan County: Big Horn Coal Site (southeast extension)
Dry, loamy soil; grassland-sagebrush association. Acme Quad. Phenology: flowering.
with J. A. Moore, D. G. Bendix, D. G. reardon

U.S.A., Wyoming, Campbell County:
Grassy Plains. Phenology: flowering.
Mary Alice Sanguinetti, 488. 7/15/1978.
with Keith H. Dueholm

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

U.S.A., Wyoming, Sheridan County: Hills SE of Sheridan.
Elev. 3900
Sandy slope. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Ca 5 air mi NNW of Hilight.
Scoria topped butte, loose talus slopes. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Casper.
Phenology: buds.

U.S.A., Wyoming, Sheridan County: Beet Flats.
Slightly clay soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Devils Tower National Monument: Toyner Ridge-north side of loop, ca 50 yds E of parking lot.
Sandy-silty soil, sunny south slope, with Artemisia ludoviciana, Andropogon scoparius. Occasional; flowers pale blue. Phenology: flowering.

U.S.A., Wyoming, Albany County: 3 mi ENE of Esterbrook.
42.4235° N, 105.3142° W; NAD 83, uncertainty .5 mi., Nat. Geog. TOPO!
Rocky grassland with Dalea, Hymenopappus. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sheridan County: East Slope Big Horn Mountains: ridge system on north side of Smith Creek, ca 7.3 air mi WNW of Dayton.
Whitish shaley-limestone and red bed barren slopes and ridgecrests. Phenology: flowering.
with Janet Britt

U.S.A., Wyoming, Crook County: Inyan Kara Creek, 17 mi S of Sundance.
Foothills; grass association; xerophytic. Phenology: flowering.

U.S.A., Wyoming, Platte County: Camp Guernsey: Cundall Ranch parcel; south end of transect ca 1.1 km due E of North Platte River, ca 2.9 km NW of Wendover Bend Ranch.
Rolling; mixed grass prairie with scattered silver sagebrush; silty loam; with Bouteloua gracilis, Artemisia cana, Plantago patagonica, Lepidium. Infrequent; erect, tuberous, perennial herb; 2.5 dm tall; corolla blue. Phenology: buds.
with P. Block

U.S.A., Wyoming, Platte County: Camp Guernsey: Walsh Ranch parcel; east end of transect ca 7.9 km NE of Guernsey Reservoir, ca 1.2 km WSW of Range Guard 4.
South-facing slope; gravel break; silty loam with gravel to cobbles; with Packera plattensis, Carex filifolia, Cercocarpus montanus, Bromus tectorum, Hesperostipa comata, Lappula redowskii. Scattered; erect, tuberous, perennial herb; 3 dm tall; corolla pale blue to purple. Phenology: buds.
with P. Block