Astragalus lotiflorus (1996)
FABACEAE
Astragalus lotiflorus Hook.
U.S.A., Wyoming, Park County: Northern Absaroka Area: rugged canyons and ridges near Bennett Creek, 5.5-6 air mi NW of Clark.
Rocky-sandy drainage, slopes, and ridges. Phenology: flowering.
with B. E. Nelson
Accession: RM 679802, Barcode: RM0053934

Astragalus lotiflorus (1997)
FABACEAE
Astragalus lotiflorus Hook.
U.S.A., Wyoming, Park County: Northern Absaroka Area: Buffalo Bill Reservoir, ca 7.5 air mi E of Wapiti.
Elev. 5600 ft.
Edge of reservoir. Phenology: fruiting.
Accession: RM 680276, Barcode: RM0053932

Astragalus lotiflorus (1997)
FABACEAE
Astragalus lotiflorus Hook.
U.S.A., Wyoming, Park County: [location and coordinates withheld]
Elev. 5800 ft.
Roadside in clayey soil. Phenology: fruiting.
Accession: RM 680275, Barcode: RM0053933

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

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: sand dunes near Table Mountain ca 6 air mi SE of Ferris; ca 3 air mi N of Windy Ridge.
Partially vegetated sand dunes with sagebrush and grasses. Phenology: fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Green Mountain: ca 5.5 air mi SE of Jeffrey City; ca 9 air mi NE of Crooks Peak.
Moist narrow draw with grasses in sandstone hills. Phenology: fruiting.

U.S.A., Colorado, Chaffee County: Central Colorado: Mosquito Range, East Slope Continental Divide: Browns Canyon on the Arkansas River, ca 10 air mi NW of Salida.
Granite rock outcrops and area along river. Phenology: flowering & fruiting.
with Emily Holt
Accession: (unaccessioned)

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: fruiting.
Accession: RM (unaccessioned)

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.
Rock slopes and buttes of Juniper leading into clay based drainages. Phenology: fruiting.
Accession: RM (unaccessioned)

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 9.5 air mi SE of Fairburn and ca 1 air mi SE of South Fork French Creek.
Elev. 3212 ft.
On rocky ridge in rock, gravel and loose soil. Phenology: flowering.
Accession: RM (unaccessioned)

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 19 air mi SSW of Wall In Conata Basin.
In a prairie dog town having deep heavy, white clay soils with a sand component. Phenology: fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 16.5 air mi SSW of Wall in Conata Basin.
In a prairie dog town having deep heavy white clay soils. Phenology: fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6-6.5 air mi SE of Wall.
On a flat mesa top strewn with rock having a water filled closed depression on summit. Phenology: fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 5.5 air mi SE of Scenic in Big Hollow Creek.
Soils are unstable, gravel and clay streambed. Phenology: fruiting.

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: fruiting.

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

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: U.S. Hwy 285, ca 3.5 air mi NE of Ojo Caliente.
Sandy wash and slopes. Phenology: flowering & fruiting.
with Jill E. Larson

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: NM Hwy 68, 2 mi SW of Embudo, ca 0.2 air mi NE and SW.
Roadside to river banks. Phenology: fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: along Rome Hill or County Road 56 and S of Cooks Canyon, ca 8 air mi ESE of Ten Sleep.
Sagebrush on mudstone and siltstone. Phenology: fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: along Rome Hill or County Road 56 and S of Cooks Canyon, ca 11.3 air mi ESE of Ten Sleep.
Sagebrush on mudstone and siltstone. Phenology: fruiting.

U.S.A., New Mexico, De Baca County: Near Yeso along U.S. Hwy 60.
Sandy loam soil; grassland, shrub, forb community. Phenology: flowering & fruiting.
Accession: RM 785361

U.S.A., Wyoming, Laramie County: 20 miles east of Cheyenne.
41.1577° N, 104.4157° W; NAD 83, uncertainty 2 mi., Digital Map
On dry sandy soil. Locally rare. (US Hwy 30) Phenology: fruiting.

U.S.A., Wyoming, Platte County: 6 miles north of Wheatland.
42.1414° N, 104.9418° W; NAD 83, uncertainty 1 mi., Digital Map
Dry sandy prairie. *field notebook Phenology: fruiting.

U.S.A., Wyoming, Platte County: Lake Guernsey State Park.
42.3116° N, 104.7836° W; NAD 83, uncertainty 1 mi., Digital Map
Grassy hills, dry soil. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Ca 8 mi N of Wheatland.
Dry sandy hills. Phenology: fruiting.

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: cliffs on east side of Wind River Canyon, ca 12 air mi SSE of Thermopolis; ca 20 air mi N of Shoshoni.
T6N R6E S15; also T41N R94W S21 and S28
Dry, west-facing hillside and cliffs.
with Clay Lippencott

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

U.S.A., Wyoming, Natrona County: Casper, Platte River
T34N R78N S32
Sandy island. This is collection 9715. Phenology: fruiting.
Annotations:
2. Astragalus lotiflorus Hook.
Annotated by C. L. Porter in 1949.

U.S.A., Wyoming, Niobrara County: Lusk.
42.7625° N, 104.4521° W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!
Phenology: fruiting.
Annotations:
2. Astragalus lotiflorus Hook.
Annotated by C. L. Porter in 1948.

U.S.A., Wyoming, Goshen County: Southeastern Plains: Goshen Hole: Fort Laramie National Historic Site: southern BLM tract ca 1.7 air mi SW of Fort Laramie (town).
Upper ridge slopes with scattered Pinus ponderosa with gravelly silt loam, northeast slope 10%; Pinus ponderosa/Andropogon scoparius wooded herbaceous vegetation; associated species are Stipa comata, Bouteloua gracilis, Psoralidium tenuiflorum, Uncommon. Phenology: fruiting.
with Luanne Lum
Accession: (unaccessioned)

U.S.A., Wyoming, Goshen County: Southeastern Plains: Goshen Hole: near Fort Laramie National Historic Site: southern BLM tract ca 1.7 air mi SW of Fort Laramie (town).
Upper ridge slopes with scattered Pinus ponderosa, Stipa comata, Bouteloua gracilis, Psoralidium tenuiflorum. Uncommon. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Ca 70 air km SSE of Gillette; ca 14 air km E of Route 59.
Elev. 1524 m.
In sandy loam soil disced in June 1976, with Salsola and Plantago. Uncommon. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: CA 21 air km SSE of Gillette; ca 5 air km E of Route 59.
Elev. 1371 m.
In sandy loam soil disced in June 1976 with Salsola and Amaranthus. Phenology: fruiting.

U.S.A., Wyoming, Albany County: City Springs.
Phenology: fruiting.

U.S.A., Wyoming, Park County: Bighorn Basin: along west side of YU Bench Road, ca 8 mi S of U.S. Hwy 14, 16, & 20, SE of Cody.
Sagebrush-grassland with Bouteloua gracilis, Opuntia polyacantha, Lappula redowski, Poa secunda, and Astragalus grayi. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Bighorn Basin: south side of YU Bench Road, ca 1/2 mi N of County Road 3LE and the Greybull River, ca 5 mi NE of Wyo Hwy 120.
Sagebrush-grassland on rocky alluvial soil with Arenaria hookeri, Bouteloua gracilis, Sedum lanceolatum, Stipa comata and Oryzopsis hymenoides. Phenology: fruiting.

U.S.A., Wyoming, Hot Springs County: Southeastern Absarokas: ridge ca 1/4 mi N of Gooseberry Creek, in foothills ca 12 mi S of Meeteetse.
Rocky sagebrush-grassland with a few scattered limber pine and juniper, and with Psoralea lanceolata, Bouteloua gracilis, Astragalus spatulatus, and Heterotheca villosa. Phenology: fruiting.

U.S.A., Wyoming, Park County: Bighorn Basin: Cedar Mountain, ca 2 mi W of Cody.
Sulphur pits on northeast side of mountain. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Black Thunder Strip Mining Area: North Prong of Thunder and Little Thunder creeks.
Upland sagebrush grass; with big sagebrush, blue grama on clayey loam. Project map stop number 2 Phenology: fruiting.
with D. W. Sabinske

U.S.A., Wyoming, Big Horn County: Ca 5 mi SE of Hyattville.
Rocky clay slopes with Cryptantha and Eriogonum. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Ca 5 mi SE of Torrington.
Sandy-gravelly floodplain with Artemisia campestris and Sporobolus. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Pathfinder National Wildlife Refuge: northeast shore of Pathfinder Reservoir on banks of channel between upper and lower parts of the reservoir; ca 4.5 mi S of Wyo Hwy 220.
Open, sandy-gravelly shoreline; soils derived from sandstone and granite. Phenology: fruiting.

U.S.A., Wyoming, Big Horn County: West Slope Big Horn Range: mouth of Shell Canyon at base of cliffs on north side of Shell Creek, ca 4 3/4 mi NE of Shell (along "Beef Trail" at south end of Elephant Head Ridge system).
Gravelly slopes of limestone rubble on light-colored sandy-clay soils in openings near cattle trail in community of Artemisia nova/Elymus spicatus. Phenology: fruiting.
with Laura Welp

U.S.A., Wyoming, Big Horn County: Bighorn Basin: west shore of Yellowtail Reservoir, 1.7 mi E of the south end of Sykes Mountain and 1.8 mi NNE of Kane Cemetery.
Dry banks of reservoir (within flood zone during high water years) on flats covered by fine gray-black gravel. Vegetative cover 20-40%. With young Tamarix (<12 inches tall), Sporobolus cryptandrus, Verbena bracteata, Iva axillaris, & Potenitlla paradoxa Phenology: fruiting.
Accession: RM 706221

U.S.A., Wyoming, Big Horn County: Ca 5 mi SE of Hyattville.
Rocky clay slopes with Cryptantha and Eriogonum. Phenology: fruiting.
Accession: RM 396725

U.S.A., South Dakota, Fall River County: Hot Springs.

U.S.A., South Dakota, Harding County: Extreme northwest corner of county.
T23N R1E S36
Steppe. Phenology: flowering & fruiting.

U.S.A., South Dakota, Perkins County: Bixby.
T14N R13E S29
Phenology: flowering & fruiting.

Astragalus lotiflorus ()
U.S.A., South Dakota, Stanley County: Cheyenne River.
T. A. Williams, s.n.. //.

U.S.A., Colorado, Prowers County: 10 mi NW of Lamar.
Prairies. Phenology: flowering.

U.S.A., Colorado, Cheyenne County: 8 mi S of Kit Carson.
Infrequent in sandy areas. Phenology: flowering.

U.S.A., Colorado, Weld County: Coleman: Johnston's Ranch.
Phenology: flowering & fruiting.
Annotations:
Annotated by C. L. Porter in 1951.

U.S.A., Colorado, Weld County: Windsor.
Phenology: flowering.
George E. Osterhout, 1067. 5/7/1896.

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

U.S.A., Colorado, Las Animas County: East of Las Animas.
Phenology: flowering.

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

U.S.A., Colorado, Weld County: New Windsor.
George E. Osterhout, 720. 6/16/1895.

U.S.A., Colorado, no county County: Rocky Mountains.
Phenology: flowering.
with Harbour

U.S.A., Colorado, Arapahoe County: Aurora.

U.S.A., New Mexico, San Miguel County: 20 mi S of Wagon Mound.
1. Astragalus lotiflorus Hook.
Annotated by Gerald B. Ownbey.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: 0.5 mi SW of Camping Headquarters.
Common on dry plains. Phenology: fruiting.

U.S.A., Colorado, Fremont County: Ca 9.5 mi E of Salida, along U.S. Hwy 50.
Pinyon-juniper community, red igneous sand. Phenology: flowering & fruiting.
with J. Anderson

U.S.A., Colorado, Baca County: Cimarron River S of Midway: Pfeiffer Ranch.
T34S R42W
Shifting sands, river bars and channel. Phenology: flowering.
Annotated by C. L. Porter.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Coon Creek SW of Wyo Hwy 32, ca 9 air mi NW of Emblem, ca 17.5 air mi SW of Lovell.
Clay flats and slopes. Phenology: fruiting.

U.S.A., Wyoming, Park County: Bighorn Basin: near Willow Creek on Burlington Pass Road, ca 5.5 air mi SW of Burlington, ca 22 air mi W of Basin.
Cobblestone covered slopes and rims (Willwood Formation). Phenology: fruiting.
with Erik Nelson

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: along Cottonwood Creek, ca 6 air mi W of Hamilton Dome, ca 25 air mi WNW of Thermopolis.
Rolling hills with sandstone outcrops, sandy and clay patches in sagebrush-grassland or grassland.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 22 air mi N of Linch, ca 28.5 air mi NE of Kaycee, above the Powder River, on the Iragaray Ranch.
Common in sandy clay on east aspect of upland sagebrush grassland with Carex filifolia and Bouteloua gracilis. Phenology: fruiting.

U.S.A., Wyoming, Fremont County: Wind River Basin: along East Fork Dry Creek, ca 12 air mi NW of Lysite.
Cobble bench and slopes, greasewood flats along creek, margins of creek; slopes. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: Pumpkin Buttes: North Butte.
Eroded rocky slopes on W face, rolling plains below, and plains at summit. Juniper and limber pine on slopes; open slopes. Phenology: flowering & fruiting.
with Ronald L. Hartman

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Sagebrush plains, shallow draw, roadcuts; plains. Phenology: fruiting.
with Mary Alice Sanguinetti

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; eroded slopes. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Plains and flats along creek, eroded slopes, sandy roadcuts; roadcut. Phenology: fruiting.

U.S.A., Wyoming, Johnson County: [location and coordinates withheld]
Rocky slopes. Phenology: flowering.

U.S.A., Wyoming, Johnson County: [location and coordinates withheld]
Sagebrush plains, draws, sandstone butte dominated by cercocarpus, and rocky, gravelly slopes; plains. Phenology: fruiting.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 17 air mi SE of Buffalo.
Sandy plain, shallow draw, flats around holding pond; plains. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: [location and coordinates withheld]
Sagebrush plain, saltbush flats, margins of soda lake; flats. 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, Washakie County: Bighorn Basin: ca 6 mi W of Ten Sleep.
44.0286° N, 107.5629° W; NAD 83, uncertainty 2 mi., Nat. Geog. TOPO!
Sandy slopes with sandstone outcrop. Phenology: fruiting.
with Keith H. Dueholm

U.S.A., Wyoming, Fremont County: Wind River Basin: Cedar Ridge and barren hills to the N.
Barren hills. Phenology: fruiting.
with Keith H. Dueholm

U.S.A., Wyoming, Big Horn County: Bighorn Basin: ca 7 air mi NW of Shell.
Shales with some sandstone; ridge, steep slopes, and flats below; sagebrush, saltbush, and greasewood community types. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 1 air mi N of I-90 at the Powder River.
Roadside and eroded slopes. Phenology: fruiting.
with 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 & fruiting.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Carbon County: Hanna Basin: Seminoe Reservoir, ca 10 air mi SSE of Seminoe Dam.
Sandy beach mostly in shade of Tamarix but occasionally in open. Associates include Potentilla, Astragalus, Physaria, Halogeton, Verbena, Iva, Potentilla anserina, and Lupinus. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 4 mi N of Prairie Center on County Road 25, ca 35 air mi N of Torrington.
Mixed grass plains. Phenology: flowering.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: S of Mikes Draw along Wyo Hwy 59 and Burlington Northern Railroad, ca 7 air mi S of Bill; ca 26.5 air mi N of Douglas.
Sandy clay sagebrush-grassland with sparsely vegetated knolls. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Thunder Basin National Grasslands: along Steinle or County Road 40, ca 8 air mi NE of Bill; ca 41 air mi NNE of Douglas.
Sagebrush-sedge-grassland. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: between Horse Creek and Table Mountain on Wyoming Game and Fish Table Mountain Wildlife Management Area, ca 4 air mi SSE of Huntley; ca 14 air mi S of Torrington.
41.88° N, 104.12° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Grasslands on sandy clay soils with marshes and playas. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Okie Draw W of Lester-Arminto or County Road 108, ca 10 air mi ENE of Arminto; ca 47 air mi NW of Casper.
Rolling sagebrush-grassland/mixed grass plains. Phenology: fruiting.

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

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

U.S.A., Wyoming, Goshen County: [location and coordinates withheld]
Sandy clay weedy grassland plains. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: at the end of County Road 30 ca 1.5 mi W of Nebraska; ca 3 air mi S of Lone Sand Hill, ca 24.2 air mi NNE of Torrington; ca 15 air mi ESE of Jay Em.
Rolling plains with sandstone or siltstone knolls, small blowouts. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Notches or County Road 106 ca 1 air mi W of South Fork Powder River crossing, ca 4 air mi NNW of Powder River.; ca 38.5 air mi NW of Casper.
A mosaic of sagebrush-grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along County Road just S of the Laramie River, ca 3.5 air mi WSW of Fort Laramie; ca 22.3 air mi NW of Torrington.
42.193° N, 104.581° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!
Sandy plains at the base of cobblestone slopes in the river valley. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: on the divide between Archie Draw, Coal Draw and Middle Creek just W of Cow Creek Buttes, ca 14 air mi ENE of Bill; ca 40.5 air mi NE of Douglas.
Sandy slope, mostly dominated by large areas of Calamovilfa and Yucca. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: just off the southwest corner of Harmony Heights between Deer and Cherry creeks ca 8.5 air mi SW of Fort Laramie; ca 21.3 air mi W of Torrington.
Rough breaks of sandy slopes, outcrops and draws with juniper, mountain mahogany and some ponderosa pine. Phenology: fruiting.

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

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Johnson Reservoir 3, ca 6 air mi NNW of Wheatland.
Sandy slopes and lake margin. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: U.S. Hwy 20, 26, less than 1 air mi E of Fremont County.
Alkaline draw with sandy slopes. Phenology: fruiting.
with T. W. Nelson

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

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 6 air mi NW of Arminto.
Sandy-rocky slope and eroded drainage areas. Phenology: fruiting.
with T. W. Nelson

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

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: County Road 650, ca 6 road mi W of Exit 64 on I-25.
Top of hill with oak meadows. Phenology: fruiting.

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

U.S.A., Wyoming, Weston County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Grieves Road ca 1/2-3/4 air mi N of Lodgepole Creek Crossing, ca 7.5 air mi E of Hampshire; ca 28.5 air mi SW of Newcastle.
Borrow pit. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Ca 8 mi NW of Hulett.
In old road bed. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Beulah
Northern foothills and red beds; grass association; xerophytic. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Black Hills: The Brakes, ca 2.8 air mi SSE of Aladdin.
Open, grassy ridge top; sandy soil. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Newcastle.

U.S.A., Wyoming, Weston County: Powder River Basin: ca 22 air mi SSE of Newcastle.
Open, buffalo grass glades. Phenology: fruiting.

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

U.S.A., Wyoming, Weston County:
T48N R61W S17

U.S.A., Wyoming, Goshen County: Ca 4 mi NE of Lingle.
Sand hills with Phlox, Abronia. Phenology: fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: County Road C above Carrizo Creek, ca 2 air mi W of Little Black Mesa and ca 1 air mi N of Oklahoma, ca 33.5 air mi SW of Springfield.
Sandy-silt grassland flats. Phenology: fruiting.
Annotated by B. E. Nelson.
with Bernadette Kuhn

U.S.A., Colorado, Baca County: Comanche National Grassland: Sand Canyon, ca 0.5 air mi N of Oklahoma, ca 15.5 air mi WSW of Campo.
Sandsage flats on sandy silt substrate. Phenology: fruiting.
Annotated by B. E. Nelson.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 19 air mi SSW of Springfield.
Grazed pasture dominated by Buchloë, Psoralea, and Hordeum, between windmills. Phenology: fruiting.
Annotated by Bernadette Kuhn.
Bernadette Kuhn, 765. 6/7/2007.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 8.5 mi S of Vilas.
Shortgrass prairie dominated by Buchloë dactyloides and Yucca glauca. Phenology: fruiting.
Annotated by Bernadette Kuhn.

U.S.A., Kansas, Morton County: Cimarron National Grassland: at Point of Rocks, ca 8 mi N of Elkhart.
Open fishing ponds with banks dominated by Scirpus, Juncus, and Eleocharis with scattered stands of Tamarix; sandy soil. Phenology: fruiting.
Annotated by Bernadette Kuhn.

U.S.A., Colorado, Baca County: Comanche National Grassland: Carrizo Canyon.
Lush canyon dominated by Rhus aromatica. Phenology: fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: near West Ute Canyon, ca 26 air mi S of Springfield.
Sandy soil, shortgrass prairie with Yucca and cholla. Phenology: fruiting.
with B. E. Nelson

U.S.A., Colorado, Otero County: Comanche National Grassland: 8 mi SE of La Junta, 4 mi E of Colo Hwy 109.
Shortgrass prairie dominated by Opuntia, Elymus, and Aristida. Phenology: fruiting.
with B. E. Nelson

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 10 air mi SSW of Springfield.
Shortgrass prairie with wet draw. Phenology: fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 8.5 air mi SE of Springfield.
Grazed shortgrass prairie dominated by Buchloë dactyloides. Phenology: fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: at fishing ponds E of campground, ca 9.5 air mi NNE of Elkhart.
Edge of ponds dominated by Eleocharis, Scirpus, and Typha; uplands with Stipa, Erigeron, and stands of Populus. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: 1 mi W of Kans Hwy 27, ca 5 air mi N of Elkhart.
Sandsage prairie with rolling dunes dominated by Yucca glauca and Opuntia. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: near oil derrick, 0.5 mi W of intersection of Kans Cimarron National Grassland: Kans Hwy 51 and Kans Hwy 27, on north side of Kans Hwy 51, ca 9 air mi N of Elkhart.
Shortgrass prairie with sandy soils; scattered Yucca glauca and Chamaesaracha. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small wash on west side of Gardiner Road (County Road 20A) 0.4 mi N of junction with NM Hwy 555; 3.0 air mi SW of Raton.
Dry sandy wash, still moist from recent rains, among pinyon-juniper woodland, with Rhus trilobata, Quercus ×undulata, Helianthus annuus. Uncommon on flats adjacent to wash. Phenology: fruiting.
Annotated by Ben Legler on 3/20/2008.

U.S.A., Montana, Park County: Gallatin Range: Gallatin National Forest: near Cinnabar Mountain, ca 40 air mi SSW of Livingston; ca 7.5 air mi NW of Gardinar.
Open slopes and plateau dominated by sagebrush and mixed forbs on decomposing granite. Phenology: fruiting.
Accession: USFS 868964, Barcode: USFS0063651

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: ca 3.9 road mi S on Oak Creek Grade Road from Canon City; from ca 0.5-2.5 trail mi past Tanner Trailhead, on and around the trail.
Dominant species: pinyon pine, mountain mahogany, and oak; ponderosa and blue spruce at higher elevations; mainly granite outcrops, soil sandy to gravelly in texture. Phenology: fruiting.
Annotated by Brian Elliott.
with Brian Jacobs and Alex Morgan

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 0.5 air mi NW of Williamsburg (city center).
Grassland and pinyon-juniper. Phenology: fruiting.
Annotated by Brian Elliott.
with Brian Elliott

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Temple Canyon Road, ca 3.5 air mi SW of Canon City (city center).
Rocky slopes and grasslands. Phenology: fruiting.
Annotated by Brian Elliott.
with Brian Elliott

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 78, ca 5.5 air mi SW of Pueblo (city center).
Roadcut with calcareous substrate. Phenology: fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: on the divide between East Fork Otter Creek and Wilbur Creek on Wilbur Creek (Forest Road 4775), ca 13 air mi E of Ashland.
Steep, slumping clay slopes with large barren areas. Phenology: fruiting.
Accession: USFS 884542, Barcode: USFS0049631

U.S.A., Wyoming, Park County: Beartooth Mountains: canyon of the Clarks Fork Yellowstone River.
Lower slopes along river to end of road. Phenology: fruiting.
Accession: USFS 861838, Barcode: USFS0042212

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: fruiting.

U.S.A., Montana, Madison County: N of Virginia City.
On hill. Phenology: flowering.
with M. D. Atkins

U.S.A., Montana, Lincoln County: In the rolling country of the Tobacco Valley, ca 4 mi N of Eureka.
In small disturbed areas in grasslands with Stipa comata and Poa sandbergii. Common. Phenology: buds.

U.S.A., North Dakota, Ward County: South end of Middle Des Lacs Lake.
Dry grassy hilltop. Flowers white with faint lavender lines. Phenology: flowering.
Neil Hotchkiss, s.n.. 5/25/1942.

U.S.A., North Dakota, Billings County: Medora.
Badlands. Phenology: fruiting.

U.S.A., North Dakota, Stark County: Belfield: Pyramid Park.
Prairie, especially slopes. Flowers yellowish; plants usually small. Phenology: flowering.

U.S.A., South Dakota, Hughes County: 5 mi W [of] Pierre, along U.S. Highway 14.
with M. D. Atkins.

U.S.A., Nebraska, Brown County: Long Pine.

U.S.A., Nebraska, Webster County: Red Cloud.
Phenology: flowering & fruiting.

U.S.A., Nebraska, Kearney County: Near Newark and Lowell.
Sandy land. Phenology: flowering.
Harry Hapeman, s.n.. 5//1912.

U.S.A., Nebraska, Scotts Bluff County: Wildcat Hills, ca 17 mi S of Scottsbluff on Highway 71.
Foxhills formation; dry sandy roadsides; open Pinus ponderosa forest. Abundance common. Phenology: fruiting.
with Marjorie W. Porter

U.S.A., Nebraska, Lincoln County: North Platte River.
Bluffs. Phenology: fruiting.

U.S.A., Nebraska, Sherman County: Loup City, 100 mi N of Red Cloud.

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

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

U.S.A., Montana, Valley County: Charles M. Russell National Wildlife Refuge: N of Bonetrail Boat Ramp, along Refuge Road 425, ca 1 air mi N of Fort Peck Lake, ca 44 air mi WSW of Fort Peck; ca 46 air mi SW of Glasgow.
Sandy hillslopes with yucca, greasewood, and sagebrush. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 4288. 6/1/2011.

U.S.A., Montana, Phillips County: N of Cottonwood Creek, ca 9.5 air mi WNW of Fanny Hill, ca 27 air mi WSW of Whitewater; ca 27 air mi NNW of Malta.
Grasslands with occasional silver sagebrush on loamy soil. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 6773. 7/5/2011.

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: fruiting.
Joseph L. M. Charboneau, 8003. 7/19/2011.

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.
Grasslands with fringed sage and scattered winterfat on loamy soil. Phenology: fruiting.

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96, 1-1.5 air mi SE of Pueblo Reservoir dam.
Calcareous slopes with scattered juniper. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: on the divide between East Fork Otter Creek and Wilbur Creek on Wilbur Creek (Forest Road 4775), ca 13 air mi E of Ashland.
Steep, slumping clay slopes with large barren areas. Phenology: fruiting.
Accession: (unaccessioned), Barcode: USFS0050283

U.S.A., Wyoming, Platte County: Canyon below Guernsey Dam.
Rocky slope, with Calochortus and Opuntia. Phenology: buds.

U.S.A., Wyoming, Campbell County: Ca 18 mi S of Gillette.
Sandy grassland, with Penstemon and Phlox. Flowers pink-purple. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Badger.
T27N R67W S16

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: breaks on south side of the North Platte River, ca 9 mi NW of Douglas.
Sandy slpoes and flats; grasslands with areas of sagebrush. Phenology: fruiting.
Ronald L. Hartman, s.n.. 6/27/1993.

U.S.A., South Dakota, Fall River County: Ca 2 mi NE of Edgemont.
43° 19' N, 103° 48.4' W; unknown, , GPS reading
Sandy area with Shinnersoseris and Euphorbia. Phenology: fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: ca 6 air mi WNW of Canon City.
Pinyon-juniper woodland, streamside, and sandstone outcrops. Phenology: flowering & fruiting.
Annotated by Timothy W. Chumley.
with Timothy W. Chumley
Accession: (unaccessioned)

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: quarry 0.5 air mi NW of Wellsville.
Pinyon-juniper slopes, sandstone, and limestone outcrops. Phenology: flowering & fruiting.
Annotated by Timothy W. Chumley.
with Timothy W. Chumley

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Sand Gulch off Sand Gulch or County Road 13, ca 2.8 road mi NE of intersection with County Road 12, ca 3 air mi NNE of Cotopaxi.
Sparsely wooded slopes and drainages in pinyon-juniper on sandy-gravelly granitic soils with large granite outcrops. Phenology: fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Texas Creek Gulch off Table Mountain or County Road 217A, ca 3 air mi NNW of town of Texas Creek.
In open meadow with sandy soils and large old slash piles. Phenology: fruiting.
Timothy W. Chumley, 1370a. 7/1/1995.
with Irene Thien

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: The Banks/Red Canyon: in vicinity of the BLM Banks Campground, off a BLM road ca 1 air mi from intersection with County Road 9, ca 10 air mi N of Canon City.
Open slopes in scrubby pinyon-juniper grassland. Phenology: fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Sixmile Park: from Indian Springs Campground N along a tributary of Sixmile Creek, following an old road; ca 6 air mi NW of Canon City.
Dry, rocky sandstone slopes. Phenology: fruiting.