Pediomelum argophyllum (2002)
FABACEAE
Pediomelum argophyllum (Pursh) J. W. Grimes
U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge between Rough Draw and Sage Creek, SE of Popham Bench Mark, ca 22 air mi SW of Upton; ca 38 air mi W of Newcastle.
Bottom of large wash. Phenology: flowering.
Annotations:
1. Pediomelum argophyllum (Pursh) J. W. Grimes
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

Pediomelum argophyllum (2002)
FABACEAE
Pediomelum argophyllum (Pursh) J. W. Grimes
U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: along Alkali Draw above Buffalo Creek Road, ca 1.5 air mi NW of Goose Butte, ca 9.5 air mi W of Upton.
Grassy slopes along the draw. Phenology: flowering.
Annotations:
1. Pediomelum argophyllum (Pursh) J. W. Grimes
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

Pediomelum argophyllum (2002)
FABACEAE
Pediomelum argophyllum (Pursh) J. W. Grimes
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: mesa in Rochelle Hills, ca 1 air mi E of School Creek, ca 2.5 air mi SSE of Thunder Basin Work Center; ca 17.5 air mi ESE of Wright; ca 48 air mi SSE of Gillette.
Elev. 4740 ft.
Grassland on top of the mesa. Phenology: flowering.
Annotations:
1. Pediomelum argophyllum (Pursh) J. W. Grimes
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: along Little Thunder Creek ca 1 mi below Little Thunder Reservoir, ca 8 air mi SE of Wright; ca 43 air mi S of Gillette.
Dry meadow in the bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: along a draw ca 3/4-1 mi S of Porcupine Creek, ca 0.5 mi W of Teckla; ca 14.5 air mi SE of Wright.
Aristida/Bouteloua/Sporobolus on sandy burned sagebrush/grassland. Phenology: flowering & fruiting.

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: flowering.
Peter J. Ebertowski, 1055. 7/3/2002.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: above and N of Lion Creek on Lynch or County Road 7A, ca 31 air mi ESE of Wright; ca 39 air mi WSW of Newcastle.
Sagebrush/grassland. Phenology: flowering & fruiting.
Peter J. Ebertowski, 1130. 7/5/2002.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: right of way on Wyo Hwy 450, ca 29 air mi ESE of Wright; ca 39 air mi ENE of Newcastle.
Roadside in sagebrush/grassland. Phenology: flowering & fruiting.
Peter J. Ebertowski, 1217. 7/5/2002.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ravine S of Bowman Hill on Rocky Point or County Road 85, ca 41 air mi NNE of Gillette; ca 24 air mi NE of Weston.
Sandy hills and ravines with ponderosa pine. Phenology: flowering.

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: Cracker Creek on County Road 68, ca 25 air mi NNE of Weston; ca 40 air mi NNE of Gillette.
Creek bed. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: upper end of Dry Fork Spring Creek on Heald or County Road 49, ca 8.5 air mi NE of Weston; ca 31 air mi NNE of Gillette.
Patchy little bluestem. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge W of Alkali Creek on Roxson or County Road 73, ca 26 air mi SSW of Newcastle; ca 41 air mi SSE of Upton.
Mosaic of grassland and yucca. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: head of Nicholson Draw on Wyo Hwy 59, ca 5.5 air mi SSE of Wright; ca 33 air mi NNW of Bill.
Grassland with sandy bowls. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: tributary of Cow Creek, on Cow Creek or County Road 3, ca 18 air mi NNW of Lance Creek; ca 27 air mi WSW of Mule Creek Junction.
Grassland with patches of yucca. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Spring Creek on County Road 91, ca 28 air mi NE of Gillette; ca 23 air mi NNW of Moorcroft.
Roadside in sagebrush/grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: tributary of South Deer Creek on County Road 68, ca 12.5 air mi N of Moorcroft; ca 29 air mi ENE of Gillette.
Bank of creek in sagebrush/grassland. Phenology: flowering.

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: Brosa Draw on County Road 116, ca 22 air mi N of Moorcroft; ca 36 air mi ENE of Gillette.
Sagebrush/grassland. Phenology: flowering & fruiting.

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.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: spring and head of Holmes Creek on Payne or Forest Road 934, ca 18 air mi SE of Wright; ca 26 air mi N of Bill.
Sagebrush/grassland with sandstone outcrops. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Skull Creek on County Road 14, ca 12 air mi E of Upton; ca 19 air mi NNW of Newcastle.
Roadside adjacent to hayfield. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hills N of Little Thunder Creek on Wyo Hwy 450, ca 28 air mi ESE of Wright; ca 42 air mi WSW of Newcastle.
Roadside in sagebrush/grassland. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Soukup Draw on Hall Road, ca 16 air mi NNW of Gillette; ca 17 air mi SSE of Recluse.
Roadside in sagebrush/grassland. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Piney Creek on Piney Creek or County Road 17, ca 24 air mi ESE of Wright; ca 27 air mi NNE of Bill.
Creek bed. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Wild Horse Creek on York or Forest Road 900, ca 27 air mi NNE of Gillette; ca 24 air mi N of Rozet.
Sagebrush with patches of little bluestem and yucca. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Cottonwood Creek E of County Road 7A, ca 32 air mi ESE of Wright; ca 41 air mi WSW of Newcastle.
Grassy gully leading to creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ravine S of and leading to Porcupine Creek on dirt road ca 0.5 mi W of Wyo Hwy 59, ca 9.5 air mi S of Wright; ca 29 air mi NNW of Bill. NWZ1/4
Mosaic of sagebrush and grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: along Lodgepole Creek immediately below its confluence with Hay Creek, on Wyo Hwy 450, ca 24 air mi WSW of Newcastle; ca 27 air mi S of Upton.
Rocky slope near creek. Phenology: fruiting.

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.
Grassland with sandstone outcrop. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: playa and grassland ca 1.5 air mi N of North Prong Little Thunder Creek on County Road 89, ca 8 air mi E of Wright; ca 38 air mi SSE of Gillette.
Sandy area near oil well and tank. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ridge and ravines leading to Wild Horse Creek on gravel road off York or Forest Road 900, ca 30 air mi NNE of Gillette; ca 30 air mi NNW of Moorcroft.
Grassy ravine bordered by ponderosa pine on slopes. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: along Piney Creek off of Piney Canyon or County Road 17, ca 25 air mi SE of Wright; ca 27 air mi NNE of Bill.
Rocky slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: along Buzzard Creek on Keeline or Forest Road 930, ca 22 air mi ESE of Wright; ca 45 air mi SSE of Gillette.
Sagebrush/grassland with sandy patches of grass. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge W of Alkali Creek, on Cheyenne River or County Road 54, ca 24 air mi SW of Newcastle; ca 40 air mi SSE of Upton.
Sandy hill and ravine. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: above Darlington Draw and S of Tepee Benchmark on Forest Road 923, ca 32 air mi E of Wright; ca 34 air mi WSW of Newcastle.
Sagebrush with sandstone outcrops. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Clareton Oil Field W of Bruce or County Road 7C, ca 28 air mi WSW of Newcastle; ca 30 air mi SSW of Upton.
Grassland. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: above and S of reservoir in gully leading to Robbers Roost Creek, on Cheyenne River or County Road 54, ca 24 air mi SSW of Newcastle; ca 44 air mi SSE of Upton.
Grassland with sandstone outcrops. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: tributary of Piney Creek on Piney Creek or County Road 17, ca 25 air mi ESE of Wright; ca 43 air mi WSW of Newcastle.
Grassland with patches of sparser vegetation on stony soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: tributary of Lodgepole Creek off Grieves or County Road 5, ca 23 air mi SW of Newcastle; ca 33 air mi SSE of Upton.
Sandy slopes of creek bed. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills N of Thunder Basin Work Center off Wyo Hwy 450, ca 26 air mi ESE of Wright; ca 45 air mi SSE of Gillette.
Mosaic of sagebrush and little bluestem. Phenology: flowering.

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.
Scoria hills with ponderosa pine and Rocky Mountain juniper. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Mush Creek Oil Field W of Coyote Draw, on two-track road off of Wyo Hwy 450, ca 14 air mi WSW of Newcastle; ca 23 air mi SSE of Upton.
Grassland, Carex filifolia and Stipa comata abundant. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills N of confluence of North Fork Duck Creek and Duck Creek, off dirt road to Dickinson Ranch, ca 39 air mi NNE of Gillette; ca 39 air mi NNW of Moorcroft.
Slopes forming ravine in silver sagebrush grassland. Phenology: flowering.

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.

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.
Sagebrush grassland. Phenology: flowering.

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.
Mosaic of grassland and sagebrush grassland on mostly clayey soils. Phenology: flowering.

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.
Rocky knoll with Aristida purpurea and Bouteloua gracilis. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Wildcat Creek and hills to SW, on County Road 54, ca 27 air mi SW of Newcastle, ca 36 air mi S of Upton.
Rocky knoll in grassland. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: Sage Creek on Old Highway 85 or County Road 9, ca 4.5 air mi E of Mule Creek Junction; ca 32 air mi S of Newcastle.
Rock outcrops along ravine. Phenology: flowering.

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: flowering.

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.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Well Creek, on Stewart Road, ca 10 air mi WNW of Moorcroft; ca 18 air mi E of Gillette.
Sagebrush grassland. Phenology: flowering.

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.
Grassy ravine in sagebrush grassland. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge W of North Fork Lone Tree Creek, on two track road off Wyo Hwy 450, ca 20 air mi WSW of Newcastle; ca 24 air mi S of Upton.
Grassland, Carex filifolia and Stipa comata abundant, with Artemisia frigida. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: tributary W of South Beaver Creek, on Upton-Fairview or County Road 59, ca 20 air mi W of Newcastle; ca 19 air mi S of Upton.
Mosaic of grassland and sagebrush grassland, Stipa comata abundant. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Belle Fourche River, on Clarkelen Road, ca 13 air mi SW of Wright; ca 45 air mi SSW of Gillette.
Ravine in sagebrush grassland. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Rochelle Hills N of Wildcat Creek, on two-track road off Rochelle Hills or Forest Road 933, ca 19 air mi SE of Wright; ca 56 air mi SSE of Gillette.
Hills with ponderosa pine-Rocky Mountain juniper. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: grassland ca 1.8 mi N of Greasewood Creek, on Greasewood or County Road 10, ca 40 air mi N of Lusk; ca 24 air mi NE of Lance Creek.
Grassland, Calamovilfa longifolia, and Carex filifolia both abundant. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: grassland ridge separating South Cottonwood and North Oat creeks, on Boner or County Road 18, ca 50 air mi S of Newcastle; ca 29 air mi NE of Lusk.
Grassland with clayey soils. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Big RW Creek, ca 1 mi N of its confluence with Black Thunder Creek, on Keeline or Forest Road 930, ca 18 air mi E of Wright; ca 40 air mi SSE of Gillette.
Sagebrush grassland, Bouteloua gracilis abundant. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Lone Tree Creek, on Grieves or County Road 5, ca 20 air mi WSW of Newcastle; ca 27 air mi S of Upton.
Grassland, Stipa comata and Bouteloua gracilis abundant. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: tributary of Dry Fork Spring Creek, on York or Forest Road 900, ca 30 air mi NE of Gillette; ca 31 air mi NW of Moorcroft.
Mosaic of grassland and sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ridge E of Short Creek, on road continuing Forest Road 1246, ca 34 air mi NW of Moorcroft; ca 24 air mi N of Gillette.
Ravine slope with scattered ponderosa pine and Rocky Mountain juniper. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: grassland N of Little Thunder Creek, on Wyo Hwy 450, ca 28 air mi ESE of Wright; ca 39 air mi WSW of Newcastle.
Grassy ravine in sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Turner Creek, on Forest Road 914, ca 16 air mi NW of Newcastle; ca 12 air mi ESE of Upton.
Sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Sunny Draw, on two-track off Forest Road 973, ca 23 air mi SE of Wright; ca 53 air mi N of Douglas.
Creek bed. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: upper (northern) part of Fields Draw, on Wyo Hwy 450, ca 32 air mi WSW of Newcastle; ca 33 air mi E of Wright.
Mosaic of sagebrush grassland and grassland, Stipa comata abundant. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Raven Creek, on County Road 26, ca 14 air mi S of Moorcroft; ca 18 air mi W of Upton.
Roadside in sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Buffalo Creek, on Watt Road, ca 8 air mi SSE of Moorcroft ca 14 air mi ENE of Upton.
Floodplain with greasewood and silver sagebrush. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Mush Creek, ca 1.5 mi upstream of Klodt Reservoir, on Wyo Hwy 450, ca 11 air mi W of Newcastle, ca 13 air mi S of Osage.
Sagebrush grassland with scattered greasewood. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: West Fork Cottonwood Creek, on Avon Road, ca 15 air mi ENE of Gillette; ca 6 air mi N of Rozet.
Sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills and ravines ca 0.5 mi E of Soda Well, on Forest Road 1247, ca 31 air mi NNE of Gillette; ca 33 air mi NNW of Moorcroft.
Grassy ravine slope with occasional ponderosa pine. Phenology: flowering & fruiting.

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.
Cut along stream. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge E of Lone Tree Creek, on Raven Creek or County Road 18, ca 34 air mi W of Newcastle; ca 25 air mi S of Moorcroft.
Knoll with rock outcrops in sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: Miller Creek, on County Road 68, ca 8 air mi N of Moorcroft; ca 28 air mi E of Gillette.
Elev. 4160 ft.
Sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: grassland in Mush Creek Oil Field, ca 1 mi NE of South Beaver Creek, on Wyo Hwy 450, ca 14 air mi WSW of Newcastle; ca 23 air mi SSE of Upton.
Grassland, Stipa comata and Carex filifolia abundant. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Mush Creek, ca 0.5 mi below its confluence with Lassen Creek, ca 1.2 mi W of County Road 49, ca 16 air mi W of Newcastle; ca 18 air mi SSE of Upton.
Shallow ravine in sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: reservoirs between Weston and Little Powder River, on Forest Road 908, ca 27 air mi NNE of Gillette; ca 32 air mi NW of Moorcroft.
Area of silver sagebrush and crested wheatgrass around reservoir. Phenology: fruiting.

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 24-25 air mi NNW of Crawford and 1.5 mi W of Hat Creek Road and W of Pioneer Cemetary.
Elev. 3650 ft.
In a Pascopyrum smithii/Nassellus viridula plant community upland. Phenology: buds.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 15 air mi SSW of Edgemont off Forest Road 7012.
On grassy upland and plant diverse areas of moisture collection, ridge "edge" slumps. Phenology: buds.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 16.5-17 air mi SW of Edgemontand 0.5 mi N of Forest Road 7078.
On rock outcrop of grass upland. 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., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 19 air mi SSE of Edgemont and off Forest Road 7076.
On ridge crest. Phenology: buds.

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, Custer County: Buffalo Gap National Grassland and Vicinity: ca 17-17.5 air mi SE of Hermosa and 1.5-2 mi NNW of Red Shirt and 1-1.5 mi W of SD Hwy 40.
In draws and on ridge tops. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 12.5-13 air mi WNW of Edgemont immediately E of Wyoming/South Dakota stateline. North of the Cheyenne River.
In silt and revegetated, stabilized banks of sand north of the river. Area is severely overgrazed. Phenology: flowering.

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 18.5-19 air mi NNW of Crawford and just S of Forest Road 909.
In Juniper horizontalis draw of rock, gravel and sand. Phenology: flowering.

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 15 mi N of Crawford and on Forest Road 919.
On ridgetop down to resevoir. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 13.5-14 air mi NE of Smithwick and 0.5 mi E of Black Canyon.
On Pascopyrum smithii - Nassellus viridula upland. Wildfire site in 2003. Phenology: vegetative only.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 18 air mi SSW of Edgemont.
In alkali draw of silt. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 18.5-19 air mi SSW of Edgemont.
Shores of reservoir. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 8-8.5 air mi SSE of Wall.
In creek drainage with clay soils. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SSE of Edgemont and ca 1.5 air mi due S of County Road 713.
On bluff overlooking abandoned homestead, Nassellus viridula plant community on rolling uplands of stabilized vegetation, soils are gravel and silt/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 15 air mi SE of Oelrichs and ca 1 air mi due E of County Road 3. Middle
On rolling prairie uplands in soil of silt and loam. 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., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 7 air mi NE of Toadstool Geologic Park and ca 2.5 air mi due E of Toadstool Road.
Typic badlands habitat; soils are deep heavy white clay. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 26.5-27 air mi NW of Crawford.
Pinus ponderosa covered ridge of escarpment; soils are rock outcrops and sand. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6.5 air mi SSE of Wall and 0.5 mi due E of SD Hwy 240.
Edge of badlands "wall" on ridge edge abruptly dissected into drainages leading to badlands floodplain; soils are silty loam to clay loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 8-8.5 air mi SE of Wall and 0.5 mi due S of I-90.
In deep dissected cuts of badlands "wall"; soils are clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi SE of Wall and ca 0.5-1 air mi S of I-90.
Deep dissections of badlands "wall", upslope; soils are clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 2 air mi NW of Scenic, on mesa area overlooking Spring Creek.
Soil is sand. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: Indian Creek Wilderness Area: ca 4-4.5 air mi SW of Scenic.
On ridge top; soils are gravel and clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 2.5 air mi NE of Scenic.
On ridge top edges, soil is gravel underlain with clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 3/4 mi due W of Scenic on County Road C580.
Roadside right-of-way. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6.5 air mi SE of Scenic in Cain Creek.
In a side drainage of and in the creek, soils are white clays. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Scenic.
On a ridge in a Yucca glauca plant community, soils are silt loam and sand. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 4-4.5 air mi SE of Cactus Flats.
Badlands "wall" ridge edge, in a previously altered prairie planted into Agropyron cristatum, soils are silty loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: Sage Creek drainage, ca 8 air mi SW of Wall and ca 2.5 mi due W of Sage Creek Road (County Road C502).
In large side drainage of the creek, soils are silty loam. 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: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi WSW of Wall.
In deep drainage, soils are silty loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 16 air mi NE of Hermosa and 3/4 mi SE of Thompson Butte.
In rolling prairie uplands with rock strewn vegetated bluffs, soils are silt clay to clay loam. Phenology: flowering.

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

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 14 air mi NE of Hermosa.
In prairie stream drainage cut, soils are clay loam and alkaline. Phenology: flowering.

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.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 19 air mi NE of Hermosa.
In prairie stream drainage cut, soils are clay and alkaline. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7 air mi SW of Scenic, Heutmacher Table.
On east facing slopes in stands of Juniperus scopulorum, soils are loose shale eroding into black loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 2.5-3 air mi WSW of Scenic.
On juniper covered side slopes of deep cut drainages, soils are loose shale eroding into black loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7 air mi NW of Scenic.
On Juniperus scopulorum covered slopes of deep cut drainages, soils are loose shale eroding into black loam. Phenology: flowering.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 12 air mi NW of Crawford in Little Cottonwood Creek.
Perennial stream, soils are sand and loamy clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 10.5 air mi WSW of Wall in Big Sage Creek.
Soils are clay. Phenology: flowering.
with David Jones

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 5.5 air mi SSE of Wall in Bloom Basin.
In wet ground depression, soil is silty clay. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi SW of Wall just SW of Kelley Dam.
In wet clay ground depression, soils are clay and clay loam. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 8 air mi SW of Edgemont.
In Artemisia tridentata shrub habitat, soils are loose gravel and sandy loam. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Wetlands and Adjacent Areas: Spotted Horse Creek, ca 16 air mi NNE of Arvada; ca 56 air mi E of Sheridan.
Dry Artemisia scrub uplands. Phenology: flowering.

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Inyan Kara Creek, ca 17 air mi NE of Moorcroft.
Dry Artemisia scrub uplands. Phenology: flowering.

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Keyhole Reservoir, ca 11 air mi NE of Moorcroft.
Dry sandy uplands with occasional rock outcroppings. Phenology: flowering.

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Little Missouri River, ca 22 air mi N of Devils Tower, ca 43 air mi N of Moorcroft.
Dry slopes and uplands. Phenology: flowering.

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Oak Creek, ca 16 air mi NW of Beulah; ca 24 air mi NE of Sundance.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Sand Creek Canyon, S of Beulah.
44.5103° N, 104.1004° W; NAD 83, uncertainty 1 mi., Digital Map
Abundant, dry hillsides and cliffs. *south of Beulah* Phenology: flowering.
with Marjorie W. Porter
Accession: RM 281057, Barcode: RM0188346

U.S.A., Wyoming, Weston County: Along Stockade Beaver Creek E of Newcastle.
43.814° N, 104.1116° W; NAD 83, uncertainty 1 mi., Digital Map
Hillside along creek. Phenology: flowering & fruiting.
Accession: RM 196544, Barcode: RM0188188

U.S.A., Wyoming, Campbell County: Near Spotted Horse.
44.7083° N, 105.8387° W; NAD 83, uncertainty 2 mi., Digital Map
Rocky hills. Phenology: fruiting.
with Marjorie W. Porter
Accession: RM 255876, Barcode: RM0188190

U.S.A., Wyoming, Crook County: 2 mi E of Sundance.
Common, rolling grassland hills. Phenology: flowering.
Annotated by James Grimes in 1991.
with Marjorie W. Porter

U.S.A., Wyoming, Platte County: Camp Guernsey: 1.8 km NE of Wendover Bend Ranch, 2.9 to 3.3 km S of Impact Area. To 512300 4686700
Elev. 1374 m.
Locally common on illtop in mixed sagebrush grassland on slight to moderate slope of silt loam with cobbles with Artemisia, Bromus, Heterotheca, and Plantago spp. Phenology: flowering.
Patricia P. Douglas, 468. 8/23/1995.
with B. E. Nelson, Nancy E. Hastings, Rosalie M. Smith

U.S.A., Wyoming, Platte County: Camp Guernsey: 2.1 km due W of Wyo Hwy 270, 3.7 km SW of Anderson Ranch, 4.2 km NW of Muthart Place.
Elev. 1584 m.
Locally common in grassland with scattered shrubs on flat to rolling topography in silty loam with Koeleria cristata, Artemisia, Bromus, Elymus, and Psoralidium spp. Phenology: flowering & fruiting.
Patricia P. Douglas, 595. 8/25/1995.
with R. M. Smith, N. E. Hastings

U.S.A., Wyoming, Niobrara County: 4.5 mi N of Manville.
42.8503° N, 104.615° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Grassland with Stipa and Lupinus. Phenology: flowering.

U.S.A., Wyoming, Goshen County: 14 mi NW of Ft. Laramie.
Grassland with Artemisia cana and Opuntia. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Black Hills National Forest: Victoria Creek.
On 10% southeastern facing slope; in silty soil; with Poa pratensis, Carex spp., Koeleria cristata; in dry plains. Phenology: flowering & fruiting.
Annotated by James Grimes in 1991.
Accession: USFS 508612, Barcode: USFS0068140

U.S.A., South Dakota, Pennington County: Black Hills: along road to Mt. Rushmore.
Phenology: flowering & fruiting.
Annotated by James Grimes in 1991.

U.S.A., South Dakota, Pennington County: Bear Gulch near Pactola. [possibly inundated]
T1N R5E S9
On rocky hillsides. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Jewel Cave, 18 mi W of Custer.
Wooded slopes and valley; yellow pine association; mesophytic. Phenology: flowering & fruiting.
Annotated by James Grimes on 8//1991.

U.S.A., South Dakota, Pennington County: Reynold's Prairie 2 mi NE of [Inundated] Deerfield.
In open grassland; grass association; xero-mesophytic. Phenology: flowering.

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

U.S.A., South Dakota, Butte County: Belle Fourche.
On rolling foothills; grassland association; xerophtyic. Phenology: flowering & fruiting.
Accession: RM 107816

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: Hell Canyon near old area.
T4S R2E S2 NE1/4
At base of open southwest-facing slope. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: seep in draw E of Visitors Center and above cliff.
T4S R2E S1
Along roadside. Phenology: flowering.
Annotated by James Grimes on 8//1991.

U.S.A., South Dakota, Lawrence County: Black Hills National Forest: on ridge S of Crow Peak.
T6N R1E S23
In dry shallow clay; on limestone. Phenology: flowering & fruiting.
Accession: USFS 508610, Barcode: USFS0068586

U.S.A., South Dakota, Lawrence County: Deadwood.
T5N R3E S23
On hillside. Phenology: flowering & fruiting.
Annotated by James Grimes on 8//1991.

U.S.A., South Dakota, Custer County: Harney National Forest: Piety Hill, Custer.
T3S R4E S23
On 5% slope; in weeds; in clay loam soil. Common. Phenology: flowering & fruiting.
Accession: USFS 508609, Barcode: USFS0068588

U.S.A., South Dakota, Custer County: Harney National Forest: BHM.
On 10% south facing slope; in rocky loam soil; in grass and weeds. Common. Elev closer to 6000 6100 f (USGS 7.5') G. Bryson Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Little Missouri River Valley: 25 mi N of Ashcroft. [ends up in North Dakota]
On prairie. Phenology: flowering & fruiting.
Accession: RM 69960

U.S.A., South Dakota, Fall River County:
Phenology: flowering & fruiting.

U.S.A., South Dakota, Perkins County: Bixby.
Phenology: flowering & fruiting.
Accession: RM 76492

U.S.A., South Dakota, Tripp County: Keya Paha River.
On high ground. Phenology: flowering.

U.S.A., South Dakota, Custer County: Custer State Park: in Wildlife Loop road just S of Stone Cabin.
In short grassland. Phenology: flowering.
with Jane P. Nelson

U.S.A., South Dakota, Pennington County: Along U.S. Hwy 16A, 1 mi S of Mount Rushmore National Monument.
In moist pine forest. Phenology: flowering.
with Jane P. Nelson

U.S.A., South Dakota, Pennington County: Palmer Gulch (Rabbit Gulch).
T2S R5E S5
Phenology: flowering.

U.S.A., Colorado, Yuma County: 1.25 mi NE of Willow Creek Ranch, E of Arikaree River: Willow Creek Ranch Quadrangle.
North facing slope; sand hills. Phenology: flowering.

U.S.A., Colorado, Baca County: Corrizo Canyon Region.
Dry gravelly hillsides. Phenology: flowering.

U.S.A., Colorado, Yuma County: Wray.
Phenology: flowering.

U.S.A., Colorado, Sedgwick County: Julesburg.

U.S.A., Colorado, Sedgwick County: Julesburg.
George E. Osterhout, 5145. 7/9/1914.

U.S.A., Colorado, Sedgwick County: Julesburg.
George E. Osterhout, s.n.. 7/8/1914.

U.S.A., Colorado, Kit Carson County:
T9S R43W S36
Loose soil. Phenology: flowering.

U.S.A., Colorado, Kit Carson County:
T9S R43W S36
Plains. Phenology: flowering.
Accession: USFS 508606

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: Rimrock Trail, 1 mi S of Old Abreu Lodge.
Common along trail at edge of meadow. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Near Raton.

U.S.A., Colorado, Boulder County: Near Boulder.
Mesa. Phenology: flowering.

U.S.A., Colorado, Las Animas County: 7 mi S and 16 mi E of Kim, just W of Baca County: near the Bob Dodge Ranch; head of Cottonwood Creek, an eastern tributary of Carrizo Creek.
Mesa top. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 39 air mi SSW of Gillette, ca 9 air mi E of Middle Pumpkin Buttes along Four Mile and South Branch Four Mile Creeks.
Frequent in clay in the bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 13 air mi S of Rozet, ca 20.5 air mi SE of Gillette on Bishop Road along Canyon Creek.
Frequent in sandy clay in bottomland with Artemisia frigida. Phenology: flowering & fruiting.
Annotated by J. Grimes on 8//1991.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 13 air mi NNE of Reno Junction, ca 24 air mi SSE of Gillette along Belle Fourche River.
Frequent in sandy clay in upland with Ratibida and Aster falcatus. 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.

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.

U.S.A., Wyoming, Johnson County: Big Horn Mountains: along Clear Creek just off U.S. Hwy 16, ca 5.3 air mi WSW of Buffalo.
Stony, dry canyon bottom. Phenology: flowering.

U.S.A., Wyoming, Crook County: Black Hills: between Goldie Road and Elkhorn Creek, ca 6 air mi WNW of Seely.
Roadside in sagebrush grassland.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Disturbed soil around reservoir in grassland.

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.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Roadcut in grassland. Phenology: flowering.

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, Crook County: Black Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.
Disturbed sandy soil along lake margin.

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]
South-facing slope below limestone cliffs, grassland with scattered pines.
with Dennis Horning

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 10 air mi NE of Soda Wells.
Waste area near road, rocky slopes of buttes, ponderosa pine woodlands, shaded ravines, sagebrush plains; slope. Phenology: flowering.
Annotated by , James Grimes on 8//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 and slopes. Phenology: flowering & fruiting.
with Ronald L. Hartman and Mary Alice Sanguinetti.

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; sandy slope. Phenology: flowering & fruiting.
with Ronald L. Hartman and Mary Alice Sanguinetti.

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

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 7 air mi NW of Rockypoint.
Pond, margins and adjacent plains; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 10.5 air mi NW of Rockypoint.
Eroded plain, sandstone outcrops; eroded plain. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Plains along road; plains. Phenology: flowering.
with Mary Alice Sanguinetti

Streambank, shaded ravine, gravel slope, highway right-of-way; plains. Phenology: flowering.
Annotated by James Grimes , James Grimes on 8//1991.
with Mary Alice Sanguinetti

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.
with Mary Alice Sanguinetti

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

Plains and flats along creek, ditches; plains. Phenology: flowering.

Sandy roadside buttes, loose talus slopes, outcrops, plains; plains. Phenology: flowering & fruiting.

Sandstone outcrop, plains; plains. Phenology: flowering & fruiting.

Sagebrush plains, shallow draw, roadcuts; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: grounds of Agricultural Experiment Station, ca 1/4 mi E of Gillette.
Plantations, small section of plains, knolls; openings. Phenology: flowering & fruiting.

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: along Cottonwood Creek, ca 1.5 air mi NNE of Adon.
Eroded plain and flats along creek, gravel roadside; flats. Phenology: flowering & fruiting.

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 & fruiting.
Annotated by J. Grimes on 8//1991.

Sagebrush plains along highway right-of-way; plains. Phenology: flowering.

Scoria topped butte, loose talus slopes, plains; slopes. Phenology: flowering & fruiting.
Annotated by James Grimes , James Grimes on 8//1991.

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

U.S.A., Wyoming, Campbell County: Powder River Basin: along Dry Fork Spring Creek, ca 3.5 air mi NE of Soda Wells.
Sagebrush plains, draw, bottoms along creek, cottonwood, plum thickets; plains. Phenology: flowering & fruiting.

Plains, meadows along creek, "permanent" water in stream; plains. Phenology: flowering & fruiting.

Rocky hills, plains, holding pond, wet mud along creekbeds, flats, moist grassy ditches; plains. Phenology: flowering & fruiting.
Annotated by James Grimes , James Grimes on 8//1991.

Plains, small draw; draw. Phenology: flowering & fruiting.

Rolling plains, sandy roadcut; plains. Phenology: fruiting.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 7.5 air mi E of Buffalo.
Plains, rocky ridges, scoria-topped buttes, loose talus slopes, shaley slopes; plains. Phenology: flowering & fruiting.
Annotated by J. Grimes on 8//1991.

U.S.A., Wyoming, Sheridan County: [location and coordinates withheld]
Dry plains, slopes; slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sheridan County: [location and coordinates withheld]
Plains, rocky slopes, draw with standing water, creek and meadows; slopes. 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: fruiting.

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

U.S.A., Wyoming, Johnson County: Powder River Basin: east side of Lake De Smet.
Sagebrush plain on clinker (scoria) base, occasional outcrops; plains. Phenology: fruiting.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 5 air mi NNE of Buffalo.
Rolling sagebrush plain over clinker base, hills, occasional clinker outcrops, gravel edges of roadway; plains. Phenology: fruiting.

U.S.A., Wyoming, Sheridan County: Powder River Basin: East Twin Creek, ca 2 air mi W of Parkman.
Creek, meadows along creek, cherry thickets, sagebrush plains, hill with roadcut along side, disturbed area along drainage; hillside. Phenology: flowering.

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

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 18 air mi WNW of Rockypoint.
Eroded hills with ponderosa pine. Phenology: flowering & fruiting.
with Keith Dueholm and Mary Alice Sanguinetti

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 & fruiting.
with Keith Dueholm and Mary Alice Sanguinetti

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 4 air mi N of I-90 at the Powder River crossing.
Low hills and drainage. 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 & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 20 air mi ESE of Reno Junction.
Pine covered hills and eroded slopes. Phenology: flowering & 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: flowering & fruiting.

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

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along Patten Creek ca 0.5 mi W of Wyo Hwy 270 on Patten Creek or County Road 208, ca 16 air mi ESE of Glendo; ca 12.3 air mi N of Guernsey.
Stony soil in grassland. Phenology: flowering.

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: flowering & 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.
Sandy meadow in ponderosa pine forest. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Rolling grassland and fence rows. Phenology: flowering & 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: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along Rawhide Butte or County Road 1, ca 3 air mi E of the Wildcat Hills, ca 9.5 air mi WNW of Jay Em; ca 35 air mi NW of Torrington.
Sandy slope with small cobblestones or rolling mixed grass plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along a draw leading into Rawhide Creek ca 1 mi W of Middle Rawhide Butte, ca 11 air mi NW of Jay Em; ca 38.5 air mi NW of Torrington.
Sagebrush and grassland flats above the slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along a triburtary of Silver Springs Creek on Silver Springs or County Road 54, ca 8.5 air mi SSW of Lusk.
Sandy grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: 4.5 mi N of Manville.
Grassland with Stipa and Lupinus.

U.S.A., Wyoming, Goshen County: 14 mi NW of Ft. Laramie.
Grassland with Artemisia cana and Opuntia.

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: flowering.

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

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Jane Draw, ca 2.3 air mi NNE of Aladdin, ca 21 air mi NE of Sundance.
Meadow. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Harding Gulch, ca 6.5 air mi NE of Alva, ca 12.8 air mi NE of Hulett.
Meadow above draw. 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, grassy ridgetop. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Just E of Colony on U.S. 212; ca 34 air mi N of Sundance in Daly Creek drainage.
Plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: E of Norgrain Hill near South Dakota, ca 7.5 air mi NE of Aladdin; ca 26 air mi NE of Sundance.
Upland grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: between Goldie Road and Elkhorn Creek, ca 6 air mi WNW of Seely.
Roadside in sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Disturbed soil around reservoir in grassland. 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 dolomitic limestone. Phenology: flowering & fruiting.

Roadcut in grassland. 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.

Grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.
Disturbed sandy soil along lake margin. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills, Redwater Creek, ca 2.2 air mi WNW of Beulah.
Grassland, roadside. 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.
Grassland. Phenology: flowering & fruiting.
Accession: 376569, Barcode: RM0188198

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.
Roadside. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills, Inyan Kara Creek E of HK Divide, ca 15 air mi W of Sundance.
Grassland. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Weston County: Black Hills: west side of ridge S of Elk Mountain (USFS Road 818) near Mix Spring, ca 13.5 air mi SE of Newcastle.
Southeast-facing slope with scattered pines and junipers. Phenology: flowering & fruiting.

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

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

U.S.A., Wyoming, Weston County: Black Hills: Thomson Canyon, ca 9.5 air mi NE of Newcastle.
Grassland in canyon bottom. Phenology: flowering & fruiting.
with Elizabeth Gross

Grassy opening in ponderosa pine forest. Phenology: flowering & fruiting.

Grassland in canyon botton, on sandy soil. Phenology: flowering & fruiting.

South-facing slope below limestone cliffs, grassland with scattered pines. Phenology: flowering & fruiting.
with Dennis Horning

U.S.A., Wyoming, Weston County: Black Hills: Elk Mountain area, Mix Spring, ca 14.5 air mi SSE of Newcastle.
Ponderosa pine forest. Phenology: flowering & fruiting.
with Dennis Horning

Sparse grassland on rocky soil with slabby outcrops (Minnekahta limestone). Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Crook County: Black Hills: Inyan Kara Mountain, east half.
Grassland on southeast-facing slope. Phenology: flowering & fruiting.

Big sagebrush-grassland. Phenology: flowering & fruiting.

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

Sandy roadsides, sagebrush plains; roadside. Phenology: flowering & fruiting.

Flats near stream, roadside; flats. Phenology: flowering & fruiting.

Sandy plains, holding pond; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Powder River Basin: near Little Missouri River, ca 8 air mi NNE of New Haven.
Plains, flats near river, muddy margins of large holding pond; plains. Phenology: flowering & fruiting.

Sandy plains, sandstone outcrops, draw; draw. Phenology: flowering & fruiting.

Sandy sagebrush plain, pine slope, old home site; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Bear Lodge Mountains: ca 6 mi NE of Alva.
Grassland with Ratibida and Solidago. 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: ca 7 air mi N of Hulett.
Oak woodlands, sandstone rimrock and sandy lower slopes, prairies, and shaded ravines; sandy slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: East Creek, ca 4 air mi SSW of Mona.
Partly wooded drainage with oak, hawthorn, and ash. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 2 air mi NE of Aladdin.
Prairie, sandstone outcrops, and dry drainage; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 3 air mi NNE of Beulah.
Prairie and breaks with dry stream; prairie. 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: Sand Creek, 11-12 air mi ESE of Sundance.
Canyon bottom and lower slopes; wooded 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: 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 4 air mi NW of summit of Inyan Kara Mountain.
Sagebrush slopes on red beds with moist drainage. 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: 2 mi S of Colony.
In yellow pine woods. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Boyd.
T48N R61W S33
Moist woods. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Inyan Kara Divide.
Moist woods. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Air Force Station, Sundance.
T51N R63W S14
with C. S. Gilbert

U.S.A., Wyoming, Crook County: Near Devils Tower. At school house on state sec. III-3 mi from junction U.S. 14 and state secondary III.
T53N R65W S28
with C.S. Gilbert

U.S.A., Wyoming, Crook County: Devils Tower National Monument, next to north boundary along gravel road.
Common in disturbed sandy soil with Agropyron smithii and Bromus. Phenology: flowering & fruiting.
Hollis Marriott, 748. 7/3/1981.

U.S.A., Wyoming, Weston County: LAK Ranch E of Newcastle.
Grassy upland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: 10 mi N of Devils Tower. Ewing.
Phenology: fruiting.
Stanton Seig, 12. //1925.

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: site upslope, ca 2.8 km NE of Peak 4236 (335200, 4967300), 2.4 km NNW of Peak 4290 (336500, 4967320). 336100E 4969800N.
Elev. 1230 m.
South-facing 20-30 degree slope on Artemisia grassland on clay loam, soil series Parmleed-Worfka association, with Artemisia tridentata, Stipa viridula, Elymus smithii, Bromus sp. Phenology: flowering.
Patricia P. Douglas, 30. 7/3/1997.
with N. Hastings

U.S.A., Wyoming, Campbell County: Recluse Road near U.S. Hwy 14.
Grassland with Lupinus and Ratibida. Flower blue. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Sugarite State Park: 5.8 air mi NNE of Raton.
Forest with open meadows. With Ponderosa pine and Douglas fir. Collected around lake and springs. Phenology: flowering & fruiting.
Michael Schiebout, 7550. 7/18/2005.

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.
Forb meadow on top of the ridge. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: ridge and slope between Yankee Spring and South Fork Bloom Creek and along the creek, ca air 28.5 mi SW of Broadus.
Dry slopes and ridge top. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Along Indian Creek or Albion Road ca 0.5-1 air mi E of South Dakota and ca 1/2-3/4 air mi N of the corner of Wyoming, ca 17.5 air mi E of Algada.
Rolling grassland. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Along North Butte Creek between Hamilton Creek and Little Missouri River on the south side of Mont Hwy 323, ca 2 air mi NW of Albion; ca 13.5 air mi N of Alzada.
Dry stream bed and adjacent steep banks and bench with green ash and occasional boxelder and snowberry thickets. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: Browns Pond and vicinity on Campbell Creek, ca 6.5 air mi WSW of Ludlow; ca 15 air mi N of Buffalo.
Weedy slopes and flats above the reservoir. Phenology: flowering & fruiting.

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.
Open slope below sandstone cliff. Phenology: flowering & 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: flowering & fruiting.

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.
Base and lower part of bushy northerly-facing ponderosa pine slope. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: vicinity of Spring No. 3 just below and NE of Moreau Peak, ca 18 air mi SSW of Buffalo.
Open ponderosa pine woods and clearings. Phenology: flowering & fruiting.

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 & fruiting.

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.
Open slope and ponderosa pine savannah. Phenology: flowering & fruiting.

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.
Sandy slopes around large sandstone outcrops. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just S of Forest Road 4785, ca 0.5 air mi SW of Camps Pass and ca 19 air mi ESE of Ashland.
Grass-dominated meadow. Phenology: flowering.

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.
Around reservoir shoreline dominated by grasses, sedges, and rushes. 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 & fruiting.

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.
South-facing grass-dominated slope with scattered ponderosa pine. Phenology: flowering & 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.
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 & 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.
Grass-dominated flat with scattered green ash. 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.
Green ash and grass-dominated roadside. Phenology: flowering & fruiting.

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in and around Blacks Pond off of Forest Road 4021, ca 17 air mi S of Ashland.
Grass-dominated slope above reservoir. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Ca 0.5 air mi E of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi N of Fort Howes and ca 15 air mi SSE of Ashland.
Grass-dominated grazing land. Phenology: flowering & 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.
About reservoir. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of Rimrock Spring, ca 1 air mi S of Forest Road 3151, ca 7.5 air mi SE of Summit Pass on SD Hwy 79 and ca 31 air mi SE of Buffalo.
Grass-dominated butte top with occasional hardwood draws. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of Willard Gap off of Rimrock Trail or Forest Road 3150, ca 3 air mi ESE of Summit Pass on SD Hwy 79 and ca 26.5 air mi SE of Buffalo.
Near the rim of a cliff with scattered ponderosa pine, junipers, and grasses. Phenology: flowering & fruiting.

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.
Open ponderosa pine woodland with rock outcrops. 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 & fruiting.

U.S.A., Montana, Carter County: Ca 0.5 air mi S of Ridge Road at the head of Keith Creek, ca 4 air mi SE of Saddle Butte and ca 23.5 air mi SSW of Ekalaka.
Top and slopes of grass and sagebrush-dominated butte. Phenology: flowering & fruiting.

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 & 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: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Oliver Springs, ca 0.5 air mi N of Mont Hwy 323 at Conger Hill, ca 5.5 air mi SE of Ekalaka.
Hardwood draw dominated by green ash and grasses. 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 & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just NW of unnamed 4WD road ca 1.5 air mi SW of The Breaks Coulee, ca 15 air mi NE of Ashland.
Ponderosa pine and grass-dominated draw. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Just E of Beaver Creek Road ca 1.5 air mi NW of Red Butte, ca 15.5 air mi NNE of Ashland.
Grass-dominated upland with scattered ponderosa pine. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: South Cave Hills: in and around Timber Canyon, between Forest roads 3113 and 3137, ca 11.5 air mi N of Buffalo.
Green ash-dominated draw. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: South Cave Hills: in and around McKenzie Gulch, S of Forest Road 3113, ca 10 air mi N of Buffalo.
Grass-dominated meadow. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: just S of Government Hill, W of Forest Road 3124, ca 16 air mi E of Buffalo.
Rocky and sandy grass-dominated slope. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just N of Fifteenmile Creek or Forest Road 4094, ca 1 air mi NNE of Dalzells Spring, ca 21 air mi ESE of Ashland.
Green ash-dominated meadow with scattered ponderosa pine. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: in a tributary of Schleichart Draw above Schleichart Draw Reservoir, W of Forest Road 3130, ca 17 air mi NNE of Buffalo.
Grass and chokecherry-dominated east-facing slope with rock outcrops. Phenology: flowering & fruiting.
with G. Gust

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 & fruiting.
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 & fruiting.
with G. Gust

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in and E of Stagville Draw on Forest Road 3813 at Stagville Spring, SE past Forest Road 3813B to east boundary of Forest, ca 5.5 air mi SSE of Ekalaka.
Steep road cut with rocky, sandy substrate. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Gundlach Well off of Forest Road 3103, ca 6 air mi ESE of Ekalaka.
Symphoricarpos and grass-dominated grazed meadow. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: just off Opechee Park or Forest Road 3101, ca 0.5 road mi SE of private inholding border with Forest Service land, ca 4.5 air mi ESE of Ekalaka.
Aspen and ponderosa pine-dominated draw. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: E of Moorehead Road near the Powder River, ca 9 air mi SW of Broadus.
Grass and sagebrush-dominated grazing land interspersed with badlands. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: W of Forest Road 4794 in the vicinity of Horse Creek Buttes, ca 6 air mi SE of Poker Jim Butte, ca 23 air mi S of Ashland.
Grass and sagebrush-dominated grazed prairie with scattered, wet cattle wallows. Phenology: flowering & fruiting.

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.
Near rock outcrop among grass and sagebrush-dominated grazing land. 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.
Moist hardwood-dominated draw. Phenology: flowering & 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.
In and around flowing-water hardwood draw with green ash, boxelder, chokecherry, snowberry, and Monarda. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in vicinity between Holiday Campground and SE to Sutton Spring, E of Forest Road 4777, ca 15 air mi ENE of Ashland.
Border of ponderosa pine-dominated woodland and grass-dominated meadow. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Along Powderville Road East in vicinity of Oliphant Butte, ca 31-33 air mi WSW of Ekalaka.
Mixed badlands and grass and sagebrush-dominated grazing land with Sarcobatus, Achnatherum hymenoides, Bromus, and Atriplex. Phenology: flowering & 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.
Open ponderosa pine forest with grass and sagebrush-dominated understory. 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 & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of East Fork Spring, just S of East Fork Otter Creek Road, ca 14 air mi ENE of Ashland.
Moist, grazed draw dominated by green ash, Prunus, and Crataegus. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: just E of Forest Road 3814, ca 1 air mi ENE of Smith Well, ca 5.5 mi SSW of Ekalaka.
Open ponderosa pine forest in historic burn with thick stands of regenerating pine up to 15 ft. tall; associates include Juniperus, Rhus, and grasses. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Chalk Buttes: to ca 0.5 air mi N of Trenk Pass on Forest Road 3816, ca 12 air mi SW of Ekalaka.
Ponderosa pine woodland on and near chalkstone buttes. Phenology: flowering & 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: flowering & fruiting.

U.S.A., Montana, Powder River County: In the vicinity of unnamed reservoir on Flood Creek, ca 0.5 air mi E of Moorehead Road, ca 15 air mi SW of Broadus.
Grass and sagebrush-dominated grazing land with scattered badlands and gravelly slopes. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Montana, Carter County: Ca 1.5 air mi W of Albion, ca 3/4 air mi N of Wyoming, ca 16 air mi E of Alzada.
Grass-dominated grazing land with scattered badlands. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of Road Draw Spring No. 2, SE of JB Pass, E of Forest Road 3148, ca 20 air mi SE of Buffalo.
Exposed hilltop with Dalea, Opuntia, Bouteloua, Rhus, and Andropogon; rocky substrate. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: ca 0.5 air mi S of the junction of Forest roads 3818 and 3036, ca 3.5 air mi WNW of Lantis Spring and ca 22 air mi SE of Ekalaka.
Grass and sagebrush-dominated meadow. Phenology: flowering & 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: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Cow Creek, just S of Forest Road 4095, ca 1.5 air mi W of Otter Creek Road or Mont Hwy 484, ca 2 air mi WSW of Fort Howes.
Sagebrush and grass-dominated meadow. Phenology: fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Dry Gulch Reservoir E of Forest Road 4432D, ca 3.5 air mi E of Fort Howes.
Grass and sagebrush-dominated steppe. Phenology: flowering & fruiting.
Accession: USFS (unaccessioned)

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in Bridge Canyon, ca 1 air mi E of Taylor Butte, ca 2 air mi ESE of Fort Howes.
East-facing slope in hardwood draw with Prunus and grass-dominated understory. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of South Fork Bloom Creek, just N of Bloom Creek Road, ca 3 air mi ESE of Diamond Butte, ca 14.5 air mi ESE of Fort Howes.
Grass and sagebrush-dominated steppe. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Forest Road 47842, ca 1/4 road mi from its junction with Forest Road 4784, ca 1.5 air mi S of Fifteen Mile Creek Road, ca 22 air mi SE of Ashland.
Grass and sagebrush-dominated steppe with scattered islands of open ponderosa pine woodland. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: SW of the junction of Forest roads 4769 and 4427, ca 3 air mi S of Liscom Butte, ca 16 air mi ENE of Ashland.
Ponderosa pine woodland with grass-dominated understory and moist draws dominated by green ash and hawthorn. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: Tongue River Breaks Hiking and Riding Area: along North Fork Poker Jim Creek, ca 3.5 air mi N of Poker Jim Butte, ca 15.5 air mi SSW of Ashland.
Southwest-facing rocky slope dominated by grasses. Phenology: flowering & fruiting.

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: Tongue River Breaks Hiking and Riding Area: in the vicinity of Black Eagle Spring N of Forest Road 4023, ca 3.5 air mi WNW of Poker Jim Butte, ca 19 air mi SSW of Ashland.
Hardwood draw dominated by Crataegus and Prunus. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Upper Missouri River Breaks National Monument: at the end of Winter Ridge Road above and W of Winter Creek, ca 15 air mi SW of Hays; ca 61 air mi SW of Malta.
Sagebrush-grassland. Phenology: flowering & fruiting.
with Joseph L. M. Charboneau

U.S.A., Montana, Phillips County: Upper Missouri River Breaks National Monument: along Winter Ridge Road ca 2.5 air mi SW of Saskatchewan Butte, ca 60 air mi SW of Malta.
Sagebrush-grassland with stony knolls and shallow swales. Phenology: flowering & fruiting.

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: flowering & fruiting.

U.S.A., Montana, Phillips County: Along Harb Road at an unnamed coulee, ca 23 air mi SSW of Saco; ca 25 air mi ESE of Malta.
In and along an old road in sandy clay. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Along Pickhandle Coulee, ca 24 air mi SSE of Saco; ca 26 air mi ESE of Malta.
Stony-gravelly slopes and knolls. Phenology: flowering & 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.
Grassy slopes and ravines. Phenology: flowering & 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: flowering & fruiting.

U.S.A., Montana, Phillips County: Ca 2-2.5 air mi E of Frenchman Creek and ca 0.5 mi S of Saskatchewan, ca 53 air mi NNE of Malta.
Stony grassland and slopes. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Upper end of Peck Coulee ca 4 air mi S of Saskatchewan and ca 3 air mi E of Frenchman Creek, ca 51 air mi NNE of Malta.
Grassland with scattered silver sagebrush. Phenology: flowering & 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.
Farmland abandoned in the 1930's and seeded with crested wheatgrass. Phenology: flowering & fruiting.

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: fruiting.

U.S.A., Montana, Phillips County: Along Sunnyslope Road ca 6.5 air mi S of Saskatchewan, ca 2.5 air mi N of Chapman; ca 40 air mi NNW of Malta.
Stony ridge (moraine?). Phenology: 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.
Steep, stony slope. Phenology: fruiting.

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.
Joseph L. M. Charboneau, 559. 6/27/2010.

U.S.A., Montana, Phillips County: Matador Ranch: on Dry Fork Road, on top of Dry Fork Ridge, ca 2.5 air mi N of Wrangler Reservoir, ca 16.5 air mi ESE of Zortman.
Sagebrush-grasslands on rolling hills with clay soil. Phenology: flowering.
Joseph L. M. Charboneau, 607. 6/27/2010.

U.S.A., Montana, Phillips County: On North Frenchman Road, on ridge above Steelman Coulee, ca 8.5 air mi NE of Gray Reservoir, ca 37.5 air mi N of Saco; ca 51 air mi NNE of Malta.
Steep hillside. Phenology: flowering.
Joseph L. M. Charboneau, 711. 6/30/2010.

U.S.A., Montana, Phillips County: W of U.S. Hwy 191, in the vicinity of Whitewater Creek, ca 3 air mi SSW of Morgan Port of Entry, ca 12.5 air mi N of Loring.
Sandy sagebrush-grasslands and hillsides. Phenology: flowering.

U.S.A., Montana, Phillips County: W of U.S. Hwy 191 on Fanny Hill, ca 2 air mi NNW of the confluence of Cottonwood Creek and the Milk River, ca 16 air mi NNE of Malta.
Steep hillsides on sandstone substrate. Phenology: flowering & 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, Phillips County: S of Content Road on ridge E of Horse Pasture Coulee, ca 3.5 air mi SW of Black Cow Reservoir, ca 22.5 air mi SSE of Malta.
Sagebrush-grasslands on clayey to loamy soil with many rocks. Phenology: flowering & fruiting.

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: flowering.

U.S.A., Montana, Phillips County: E of Harb Road, in Guston Coulee and on ridge to the N, ca 4.5 air mi SW of Regal Springs, ca 17 air mi ESE of Malta.
Loamy coulee bottom. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Rock Creek Canyon, ca 5.5 air mi NW of Abey Reservoir, ca 14 air mi NNE of Hinsdale; ca 32 air mi NW of Glasgow.
Grasslands on sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: E of Rock Creek Trail in hills W of Deep Creek, ca 1 air mi SE of Antelope Pass, ca 26 air mi NNE of Hinsdale; ca 42 air mi NNW of Glasgow.
Drainage sides and bottoms. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Just N of Rock Creek Dam Road, ca 0.5 air mi W of Rock Creek, ca 5.5 air mi NNE of Hinsdale.
Grasslands with hillslopes on loamy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: W of U.S. Hwy 191 in Black Coulee, ca 1 air mi NE of West Alkali Reservoir, ca 14.5 air mi SW of Malta.
Grasslands on sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: E of Ridge Road around Craig Reservoir, ca 2.5 air mi W of Clover Reservoir, ca 32 air mi WSW of Glasgow.
Grasslands with sagebrush on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: E of Skyview Ridge Road, ca 2.5 air mi E of Horace Reservoir, ca 21.5 air mi NNW of Glasgow.
Sagebrush-grasslands on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Faraasen Park, adjacent to the Milk River and in Chapman Coulee, ca 4.5 air mi SE of Tampico; ca 7 air mi NW of Glasgow.
Grasslands on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: E of North Dodson Road, ca 11 air mi SW of Hubert Hill, ca 23.5 air mi NW of Malta.
Grasslands with sagebrush on clay soil. Phenology: flowering.

U.S.A., Montana, Phillips County: Assiniboine Creek, W of Assiniboine Road, ca 8 air mi WNW of the confluence of Assiniboine Creek with the Milk River, ca 10 air mi NNW of Malta.
Grassland valley. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Taint Reservoir, S of BLM Road 1125, ca 1 air mi E of Sagebrush Reservoir, ca 15.5 air mi SSE of Zortman; ca 51.5 air mi SSW of Malta.
Rolling grasslands with sagebrush and juniper on clay soil surrounding reservoir. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Charles M. Russell National Wildlife Refuge: E of CK Ridge Road just S of Refuge Road, ca 5.5 air mi S of Wrangler Reservoir, ca 23 air mi SE of Zortman; ca 49 air mi SSW of Malta.
Sagebrush-grasslands on clay soil with occasional open ponderosa pine woodlands. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Wapati Reservoir, S of BLM Road 1143, ca 3.5 air mi W of Indian Lake, ca 43 air mi S of Malta.
Sagebrush-grasslands on stony clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: W of Midale Road, ca 1 air mi SSW of Holzhey Reservoir, ca 29 air mi SSE of Malta.
Grasslands on rolling hills of clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: E of Regina Road adjacent to Nelson Reservoir, ca 2.5 air mi SSE of Button Butte, ca 22 air mi S of Malta.
Sagebrush-grassland hills with clay soil. Phenology: flowering.

U.S.A., Montana, Phillips County: W of the northern terminus of Regina Road, ca 4.5 air mi W of Drabbels Reservoir, ca 5 air mi S of Malta.
Sagebrush-grasslands on rolling loamy to sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Blaine County: W of Mont Hwy 241, ca 2 air mi SSW of the Turner Port of Entry, ca 10.5 air mi NW of Turner; ca 33 air mi NNE of Harlem.
Grasslands on glaciated hills of clay soil with dry potholes. Phenology: flowering.

U.S.A., Montana, Phillips County: N of Sunnyslope Road, ca 7 air mi WSW of the Morgan Port of Entry, ca 12 air mi NNW of Loring; ca 42 air mi NNW of Malta.
Grasslands on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Vicinity of 3 Way No. 2 Reservoir, ca 1.5 air mi SSW of Tondra Reservoir, ca 12 air mi NNW of Whitewater; ca 34 air mi NNE of Malta.
Grasslands with sagebrush on low, rolling clay hills. Phenology: flowering.

U.S.A., Montana, Phillips County: N of Milk River Road on ridge E of Martins Coulee, ca 5.5 air mi S of Austin Lake, ca 21 air mi NNE of Malta.
Sandy hillslopes with grasses, forbs and shrubs. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Bull Pasture Coulee and above, E of Windy Ridge Road, ca 1.5 air mi NE of Erie Reservoir, ca 17 air mi N of Hinsdale; ca 36.5 air mi NNW of Glasgow.
Sagebrush-grasslands on sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Bitter Creek Wilderness Study Area: along Chisholm Creek, ca 8 air mi NNW of Newberry Flat Reservoir, ca 36 air mi NNE of Glasgow.
Sagebrush-grasslands on clay hillside with swales. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: W of Wolf Creek, ca 2.5 air mi SW of Forsman Reservoir, ca 26 air mi N of Glasgow.
Sagebrush-grasslands on stony clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Canyon Creek, ca 3 air mi SW of Forsman Reservoir, ca 26.5 air mi NNW of Glasgow.
Sagebrush-grasslands on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Spring Creek, ca 1 air mi SSW of Beaten Spring, ca 17 air mi NNE of Glasgow.
Sagebrush-grasslands on stony clay soil. Phenology: flowering.

U.S.A., Montana, Valley County: Charles M. Russell National Wildlife Refuge: on Fourth Ridge, vicinity of Refuge Road 333, ca 2 air mi ESE of Berger Reservoir, ca 14 air mi SW of Fort Peck; ca 25 air mi S of Glasgow.
Sagebrush-grasslands under open juniper woodland with occasional ponderosa pine on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: E of Glentana South Road, ca 8.5 air mi NW of Johnnys Hill, ca 3.5 air mi S of Glentana; ca 9 air mi ESE of Opheim.
Roadside ditch and roadside. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Black Coulee, W of Bear Creek Road, ca 4.5 air mi SE of Confusion Reservoir, ca 20 air mi NNW of Glasgow.
Sagebrush-grasslands on hillsides with clay soil and cobbles. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Burnt Lodge Wilderness Study Area: Larb Hills (South): Plum Coulee on Plum Creek Trail, ca 3 air mi SSE of Castle Butte, ca 46 air mi SW of Glasgow.
Sandy slopes and ridgetop. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Troika Reservoir, S of Willow Creek Road, ca 2 air mi SE of Wagner Spring, ca 36.5 air mi SW of Glasgow.
Hillsides and flats on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: W of Rocky Point Road, ca 4 air mi S of Point of Rocks Reservoir, ca 6.5 air mi SSE of Dodson; ca 8 air mi WSW of Malta.
Sagebrush-grasslands on clay soil. Phenology: flowering & fruiting.

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.
Swales in grasslands with fringed sage on clay soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Unnamed reservoir W of McEachern Road, ca 7 air mi WNW of Lighthouse Hill, ca 26.5 air mi WNW of Opheim.

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.
Sagebrush-grasslands on loamy to clay soil. Phenology: flowering & fruiting.

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

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

U.S.A., North Dakota, no county County: Williston.

U.S.A., North Dakota: Dunseith.
On sandy hills. Phenology: flowering.

U.S.A., North Dakota: Tolna.
On sandy prairies and hills. Phenology: flowering.

U.S.A., North Dakota: Near Fargo.
On prairie. Phenology: flowering.

U.S.A., North Dakota: Fargo.

U.S.A., North Dakota, Sargent County: Tewaukon National Wildlife Refuge: north side of Pool 4: 5 mi S of Cayuga.
On prairie area. Phenology: flowering.

U.S.A., North Dakota, Towner County: Maza.
On prairie. Phenology: flowering.

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

U.S.A., North Dakota, Grand Forks County: Grand Forks, along railroad tracks S of 32nd Ave. S, 1 mi W of Interstate 29.
On degraded mesic prairie. Flowers corolla blue. Phenology: flowering.

U.S.A., North Dakota, Ward County: Tasker's Coulee, 2 mi S of Kenmore.
On upland prairie on S side of Coulee. Phenology: flowering.

U.S.A., South Dakota, Edmunds County: Lake States (Prairie States Forestry Project) National Forest: 1 mi E of Bowdle.
On rolling slope; thin clay loam soil; upland; associated with Stipa, wheatgrass, bluestem gramma. Forbes 30%. Phenology: vegetative only.
Accession: USFS 508607

U.S.A., Nebraska, Dawes County: Highway 385: ca 14 mi N of junction 4 mi W of Chadron, 1 mi S of South Dakota border.
On highest butte in mid-grass prairie; associated with Stipa and Elymus. Phenology: flowering.
with M. Ralphs

U.S.A., Nebraska, Lincoln County: 6 mi S of North Platte.
On Calamovilfa-Sporobolus grassland. Phenology: flowering.

U.S.A., Nebraska, Grant County: 10mi S of Whitman.

Pediomelum argophyllum ()
U.S.A., Nebraska, Gage County:
Accession: RMRS 196

U.S.A., Nebraska: 5 mi SE of Harrisburg, near silo C-7.
On disturbed roadside. Phenology: flowering.
with J. Von Loh

U.S.A., Nebraska, Dawes County: Bilmont.

U.S.A., Nebraska, Dawes County: 20 mi S of Chadron.
On rolling grassland sandhills. Common. Phenology: flowering.

U.S.A., Nebraska, Washington County: N of Arlington.
In meadows; along roadsides. Phenology: flowering.

U.S.A., Nebraska, Banner County: 8 mi SE of Harrisburg, near silo C-7.
On rocky grassland. Phenology: flowering.
with J. Van Loh

U.S.A., Nebraska, Scotts Bluff County: Wildcat Hills Rest Area: 1/2 mi N of the Banner County line, along a walking path.
In grassland area with some conifers. Phenology: flowering.

U.S.A., Montana, Carter County: Lones Pines Area, SE of Ekalaka.
Open ponderosa pine with Hieracium, Campanula. Corolla purple. Phenology: flowering.

U.S.A., Montana, Sheridan County: Westby.

U.S.A., Montana, Fergus County: 25 mi N of Denton.
Glacial Drift geological formation; sidehills. Phenology: flowering.

U.S.A., Montana, Carter County: Custer National Forest: just below divide S of Lantis Spring.
Sandy loam soil; grassland; associated with Stipa, wheat, grama. Quite abundant, scattered. Phenology: flowering.
Accession: USFS 508616

U.S.A., Montana: Custer National Forest: Long Pine District: McClary Ranger Station pasture.
James C. Whitham, D. 7/22/1924.

U.S.A., Montana: Custer National Forest: King Creek, right fork.
Shallow clay loam, coarse gravelly soil; hilltop; grass-weed site. Somewhat rare. Phenology: flowering.
with B. D. Lund

U.S.A., Montana, Phillips County: Little Rockies District: Jefferson National Forest: Bear Creek.
South slope; dry, lime decomposition soil. Phenology: flowering.

U.S.A., Montana, Custer County: U.S. Range Livestock Experiment Station: Pasture A.
Slope 3 degrees northwest; gravelly loam soil; associated with grama grass, Stipa, Artemisia tridentata. Abundance moderate. Phenology: flowering.

U.S.A., Nebraska, Banner County: Near Silo C-7 ca. 5mi SE of Harrisburg.
Disturbed roadside. Phenology: flowering & fruiting.
with J. VanLoh

U.S.A., Nebraska, Banner County: Near Silo C-7, ca. 8mi SE of Harrisburg.
Grassland, rocky. Phenology: flowering & fruiting.
with J. VanLoh

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: 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.
Sandy to loamy hillsides and hilltops. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Cottonwood Creek at confluence with Black Coulee, ca 9.5 air mi SW of Horseshoe Lake, ca 15 air mi WSW of Loring; ca 30.5 air mi NNW of Malta.
Shalely-silty hilltop. Phenology: flowering.

U.S.A., Montana, Valley County: Sage Hen Creek and ridge to the S, along Beaver Branch Road (Little Beaver Road), ca 3 air mi W of January Reservoir, ca 19 air mi WNW of Fort Peck; ca 13 air mi SW of Glasgow.
Loose shale hillsides with creeping juniper. Phenology: flowering.

U.S.A., Montana, Valley County: S of Tiger Butte Road, ca 3 air mi SSE of Tiger Butte, ca 7 air mi NNW of Fort Peck; ca 9.5 air mi SE of Glasgow.
Grasslands with fringed sage on sandy soil with swales. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Charles M. Russell National Wildlife Refuge: N of Refuge Road 108, ca 6.5 air mi ENE of Willow Flat Reservoir, ca 6 air mi WSW of Fort Peck; ca 15 air mi SSE of Glasgow.
Big sagebrush steppe on badlands clay hills with large patches of yellow sweetclover. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Tomato Can Creek, along Fossum Road, ca 4 air mi S of Saskatchewan, ca 19 air mi WNW of Opheim; ca 53 air mi NNW of Glasgow.
Grasslands with occasional silver sagebrush on loamy soil. Phenology: flowering.

U.S.A., Montana, Phillips County: Korsbeck Waterfowl Production Area: W of Stage Road, ca 8 air mi N of Ester Lake, ca 24 air mi NNE of Zortman; ca 21.5 air mi SW of Malta.
Grasslands on loamy soil with occasional silver sagebrush, alkaline areas, and large patches of crested wheatgrass, yellow sweetclover, and alfalfa. Phenology: flowering.

U.S.A., Montana, Phillips County: American Prairie Reserve: North Fork White Rock Coulee, ca 4.5 air mi ESE of Little Warm Reservoir, ca 24.5 air mi ENE of Zortman; ca 24 air mi SSW of Malta.
Grassland hills with big sagebrush on clay to loamy soil. 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: flowering & fruiting.

U.S.A., Montana, Valley County: Charles M. Russell National Wildlife Refuge: Middle Eighth Ridge, ca 2.5 air mi ENE of Graveyard Hill, ca 24 air mi SW of Fort Peck; ca 30 air mi SSW of Glasgow.
Ponderosa pine woodland with juniper understory. Phenology: flowering.

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: American Prairie Reserve: Larb Hills (South): La Plaz Coulee, ca 4.5 air mi N of Fort Peck Lake, ca 4 air mi NE of Schuyler Butte, ca 47 air mi SSE of Glasgow.
Breaks hills and slopes with ponderosa pine woodland and large areas of yellow sweetclover on clay to shalely soil. Phenology: flowering & 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: flowering & fruiting.

U.S.A., Montana, Phillips County: UL Bend National Wildlife Refuge: Dry Lake along Refuge Road 897, ca 6 air mi SSE of Fish Fossil Reservoir, ca 40 air mi SE of Zortman; ca 56 air mi S of Malta.
Big sagebrush-grasslands on stony silty soil. Phenology: fruiting.

U.S.A., Montana, Blaine County: Black Coulee National Wildlife Refuge: Black Coulee, ca 10.5 air mi S of Turner, ca 21 air mi NE of Harlem; ca 34.5 air mi NW of Malta.
Grassland hills with scattered silver sagebrush on stony loamy soil. Phenology: flowering.

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.
Grasslands with scattered silver sagebrush on loamy soil. Phenology: fruiting.

U.S.A., Montana, Phillips County: Bowdoin National Wildlife Refuge: along Refuge Tour Road, near Black Coulee Pond, ca 6 air mi NW of Le Noir Reservoir, ca 3.5 air mi E of the Milk River, ca 7 air mi ENE of Malta.
Grasslands with scattered silver sagebrush on loamy soil. Phenology: flowering & 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: flowering & fruiting.

U.S.A., Montana, Phillips County: Larb Hills (North): PR 40 Reservoir, ca 2 air mi ENE of Ashfield Reservoir, ca 5 air mi WSW of Saco; ca 21.5 air mi ENE of Malta.
Mixed sagebrush-grasslands on loamy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: North Fork Sutherland Creek, along Murray Road, ca 2.5 air mi SSW of Murray Hill, ca 34 air mi WSW of Fort Peck; ca 36 air mi SW of Glasgow.
Big sagebrush steppe with greasewood on clay hills. 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: flowering & fruiting.

U.S.A., Montana, Valley County: Corral Reservoir and Timber Creek, S of Triple Crossing Access Road, ca 9.5 air mi WNW of Halfpint Reservoir, ca 41 air mi W of Fort Peck; ca 36 air mi WSW of Glasgow.
Grasslands with greasewood and big sagebrush on clay to stony loamy soil. Phenology: fruiting.

U.S.A., Montana, Valley County: Glasgow Base Ponds, W of Mont Hwy 24, ca 4.5 air mi W of Porcupine Creek, ca 3.5 air mi NW of St. Marie; ca 18 air mi N of Glasgow.
Grasslands with scattered silver sagebrush. Phenology: flowering.

U.S.A., Montana, Valley County: Upper reaches of Chisholm Creek, ca 4.5 air mi SSW of Pikes Peak, ca 13.5 air mi SW of Opheim; ca 38 air mi N of Glasgow.
Grasslands with scattered silver sagebrush on clay soil. Phenology: fruiting.

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.
Grasslands on sandy soil. Phenology: flowering.

U.S.A., Montana, Valley County: Willow Creek near its confluence with Eagles Nest Coulee and ridge to the W, ca 7.5 air mi WNW of Newberry Flat Reservoir, ca 15 air mi NNE of Hinsdale; ca 32 air mi NW of Glasgow.
Steep wooded drainage in bluffs above creek on sandy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Little Rocky Mountains: Grouse Gulch, ca 2.5 air mi SSE of Antoine Butte, ca 3 air mi E of Landusky; ca 46.5 air mi SW of Malta.
Loose, granitic, south-facing scree slope. Phenology: flowering.

U.S.A., Montana, Phillips County: Milk River Dodson Dam Unit Wildlife Management Area: ca 3.5 air mi NW of Dodson; ca 21 air mi WNW of Malta.
Grasslands with silver sagebrush on sandy soil with small stands of Russian olive, buffaloberry, and cottonwood. Phenology: fruiting.

U.S.A., Montana, Phillips County: Spring Coulee, S of Nylander Road, ca 6.5 air mi NNE of Dodson, ca 8 air mi N of the Milk River, ca 17 air mi WNW of Malta.
Grasslands with silver sagebrush on loamy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Intermittent ponds N of Beaver Creek, ca 3 air mi SSW of Black Cow Reservoir, ca 43.5 air mi ENE of Zortman; ca 25 air mi SSE of Malta.
Big sagebrush-grasslands on stony loamy soil. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Beaver Creek and DHS Creek near their confluence, ca 3.5 air mi E of Black Cow Reservoir, ca 48 air mi ENE of Zortman; ca 24 air mi SE of Malta.
Steep silty stream banks. 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 & fruiting.

U.S.A., Montana, Phillips County: Charles M. Russell National Wildlife Refuge: Manning Bottoms along Rock Creek, ca 10 air mi E of Fred Robinson Bridge, ca 21.5 air mi S of Zortman; ca 60 air mi SW of Malta.
Sandy hillslopes with rabbitbrush and silver sagebrush. Phenology: fruiting.

U.S.A., Montana, Phillips County: Matador Ranch: Government Reservoir (PR-35) in Dry Fork Creek, ca 4.5 air mi SE of Coburn Butte, ca 12.5 air mi SE of Zortman; ca 41 air mi SW of Malta.
Moist loamy and stony coulee bottom. Phenology: fruiting.

U.S.A., Montana, Phillips County: Unnamed reservoir S of the intersection of Emond and First Creek Hall Roads, ca 10.5 air mi NW of Indian Lake, ca 26 air mi ESE of Zortman; ca 35 air mi S of Malta.
Grasslands with fringed sage and spikemoss on loamy soil. Phenology: fruiting.

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.
Steppe dominated by Artemisia, Psoralidium, and grasses. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Ca 3.5 mi E of Hawk Springs.
Sand sage-grass, with Evolvulus and Psoralidium. Flowers purple. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Along U.S. Hwy 14-16.
Grassy plains. Phenology: flowering & fruiting.
Mary Alice Sanguinetti, 234. 7/9/1978.
with Keith H. Deuholm

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

U.S.A., Wyoming, Campbell County: Black Thunder Strip Mining Area: North Prong of Thunder and Little Thunder creeks.
Roadside; western wheatgrass, fringed sagewort, common Russianthistle, common tumblegrass; loamy, clayey, Briggsdale and Cushman Series. Phenology: flowering & fruiting.
with D. W. Sabinske

U.S.A., Wyoming, Big Horn County: Upper Little Goose.
Grassy pastures. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County:
Hills with grass, pine, and juniper. Phenology: flowering & fruiting.
Mary Alice Sanguinetti, 211. 7/8/1978.
with Keith H. Dueholm

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland.
Arca / Calo Phenology: flowering.
1. Psoralea argophylla Pursh
Annotated by B. E. Nelson in 1977.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland.
Artemisia tridentata/Agropyron spicatum Phenology: fruiting.
1. Psoralea argophylla Pursh
Annotated by B. E. Nelson in 1977.

U.S.A., Wyoming, Campbell County: 10 mi E of Reno Junction.
Ephemeral water collection drainage area in blue gramma-needle and thread grassland. Phenology: flowering & fruiting.
Herbert G. Fisser, A-10. 8/6/1977.

U.S.A., Wyoming, Campbell County:
Hills with pines. Phenology: flowering & fruiting.
Mary Alice Sanguinetti, 274. 7/10/1978.
with Keith H. Dueholm

U.S.A., Wyoming, Campbell County:
Dry grassy plains. Phenology: flowering & fruiting.
with Keith H. Dueholm

U.S.A., Wyoming, Campbell County: N of Gillette.
Dry sandy hillside. Phenology: flowering.

Grassy plains. Phenology: flowering.

Grassy hills with scattered pine. Phenology: flowering.

Streambank, shaded ravine, gravel slope, highway right-of-way; plains. Phenology: flowering.

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

with Keith H. Deuholm

U.S.A., Wyoming, Weston County: Black Hills: Elk Mountain area near Mix Spring, (Forest Road 818), ca 13.5 air mi SE of Newcastle.
T43N R60W S21; also S28
Southeast-facing slope with scattered ponderosa pine, and Rocky Mountain juniper. Phenology: flowering.

U.S.A., Wyoming, Crook County: Inyan Kara Creek, ca 17 mi S of Sundance.
Foothills; grass association; xerophytic. Phenology: flowering.
Annotated by , James Grimes on 8//1991.

Dry, grassy hills. Phenology: flowering.

Grassy hills with canyons. Phenology: flowering & fruiting.

Grassy hills. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Laramie County: High Plains Grassland Research, NW of Cheyenne.
In a small depression (not a wallow) on Albinas soil, shortgrass prairie. Phenology: flowering & fruiting.

Very dry grassy plains. Phenology: flowering & fruiting.

Dry grassy plains. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Ca 70 air km SSE of Gillette, 14 air km E of Wyo Hwy 59.
In sandy loam soil, disced in June 1976, with Salsola, Chenopodium, Lepidium, Plantago, Festuca. Common. Phenology: flowering & fruiting.
Annotated by , James Grimes on 8//1991.

U.S.A., Wyoming, Crook County: Air Force Station, Sundance.
Blue flowers. Phenology: flowering & fruiting.
Annotated on 8//1991.
with C. S. Gilbert

U.S.A., Wyoming, Laramie County: Petsch Ranch, ca 3 mi E of Meridan near silo RB-1.
with J. Von Loh

U.S.A., Wyoming, Campbell County: Gillette.
Prairies. Phenology: buds.
George W. Beatty, 1. 7//1928.

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

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

U.S.A., Wyoming, Platte County: Camp Guernsey: Sawmill Canyon on Osburn Ranch parcel; northeast end of transect ca 2.0 km due E of North Platte River, ca 9.4 km WNW of Range Control.
Rolling to slightly sloped; pine/juniper open woodland; siltly loam with pebbles to cobbles; with Pinus ponderosa, Juniperus scopulorum, Artemisia nova, Thermopsis rhombifolia, Solidago missouriensis, Carex filifolia, Hesperostipa comata, Schizachyrium scoparium, Helianthus sp. Scattered; erect, perennial herb; 2 dm tall; corolla pale purple. Phenology: flowering.
with P. Block

U.S.A., Wyoming, Platte County: Camp Guernsey: Osburn Ranch parcel; north end of transect ca 4.3 km NE of North Platte River, ca 9.9 km NW of Range Control.
South-facing slope; pine/juniper open woodland; silty loam; with Pinus ponderosa, Juniperus scopulorum, Artemisia nova, Bouteloua curtipendula, Hesperostipa comata, Schizachyrium scoparium. Scattered; ascending to erect, rhizomatous, perennial herb; 2.5 dm tall; corolla lavender. Phenology: flowering & fruiting.
with P. Block