Eriogonum cernuum (1997)
POLYGONACEAE
Eriogonum cernuum Nutt.
U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: along Twentymile or County Road 605 on Hogback Ridge, ca 10.5 air mi SW of Rawlins; ca 4 air mi N of Separation Peak.
Gentle clay slope with Artemisia, Atriplex, and Elymus. Phenology: flowering.
with Amy J. Roderick
Accession: RM 666917, Barcode: RM0223419

Eriogonum cernuum (1997)
POLYGONACEAE
Eriogonum cernuum Nutt.
U.S.A., Wyoming, Park County: Northern Absaroka Area: road S of the North Fork Shoshone River, ca 0.5 air mi E of Wapiti.
Elev. 5600 ft.
Roadside and slope to river. Phenology: fruiting.
Accession: USFS 855802, Barcode: USFS0038755

Eriogonum cernuum (2002)
POLYGONACEAE
Eriogonum cernuum Nutt.
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.
Sandy slopes with sandstone outcrops. Phenology: flowering.
Annotations:
1. Eriogonum cernuum Nutt.
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

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.
Sandy bowl bordered by yucca. Phenology: flowering.
Peter J. Ebertowski, 1119. 7/5/2002.
Accession: RM (unaccessioned)

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.
Peter J. Ebertowski, 1410. 7/9/2002.
Accession: RM (unaccessioned)

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.

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.
Sandy road cut. Phenology: flowering.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Sandy bowl with large sandstone outcrops. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge W of Alkali Creek on County Road 54, ca 24 air mi SW of Newcastle; ca 40 air mi SSE of Upton.
Grassland with sandstone outcrops. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: low ridge draining to and N of Little Thunder Creek on Wyo Hwy 450, ca 29 air mi ESE of Wright; ca 38 air mi WSW of Newcastle.
Sandy knolls and bowls; yucca, sandreed and sand bluestem. Phenology: flowering & fruiting.
Peter J. Ebertowski, 3659. 9/1/2002.

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: 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.
Blowout in Stipa comata grassland. Phenology: flowering.

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.
Patch of bare sandy soil and broken rock in grassland. Phenology: buds.

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.
Sandy slope in ravine. 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.
Sandy hills with rock outcrops, yucca and prairie sandreed abundant. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: West Fork Fiddler Creek, on Upton-Fairview or County Road 59, ca 10 air mi S of Upton; ca 23 air mi WNW of Newcastle.
Sandy bowl in Stipa comata grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Bighorn Basin: along the east side of Sheep Mountain, 12 mi NNW of Greybull.
Elev. 3900 ft.
T54N R94W S21
Saltbrush steppe with Atriplex confertifolia, Grayia spinosa, and Wyethia scabra. Phenology: flowering.
Accession: RM 824552, Barcode: rm0023157

U.S.A., Wyoming, Big Horn County: Bighorn Basin: ca 18 mi NW of Greybull along BLM Road.
Sparsely vegetated shrub-steppe. Phenology: flowering.
Accession: RM 725500, Barcode: RM0223438

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: ridge and sandstone outcroppings N of Upper Cottonwood Creek Road, ca 28 mi NW of Thermopolis.
Elev. 5200 ft.
Sagebrush-grassland with Bouteloua gracilis, Bromus tectorum, and Sarcobatus vermiculatus. Phenology: flowering & fruiting.
Accession: RM 818445, Barcode: RM0020831

U.S.A., Idaho, Fremont County: Snake River Plains: boating access along the east side of the Henrys Fork River, 2.6 mi W of Ashton.
T9N R42E S33
Dry disturbed areas and roadways with Bromus japonicus, Purshia tridentata, and Euphorbia esula. Phenology: fruiting.

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: ca 1/4 - 1/2 mi N of Little Sand Draw Road, ca 15 mi NW of Thermopolis.
Sagebrush-grassland with Carex filifolia, Stipa comata, and Delphinium geyeri. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Coconino National Forest: Forest Road 514, 7.5 air mi NE of Kendrick Park.
Pinyon-juniper woodland on cinder substrate. Phenology: flowering.
Annotations:
1. Eriogonum cernuum Nutt.
Annotated by James F. Fowler.

U.S.A., Colorado, Grand County: Middle Park: Muddy Creek, ca 1 air mi NE of Kremmling and ca 2.5 air mi SE of Wolford Mountain.
Sagebrush slope. Phenology: flowering.

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Sagebrush slopes, area beneath snow fence, and shale and sandstone outcrops. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Sand patches on clay flats. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: along Dugout Draw at the west edge of Red Desert Basin, ca 27 air mi WNW of Wamsutter, ca 44 air mi ENE of Rock Springs.
Sandy ridges at edge of draws and slopes of draw. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: at the intersection of county roads 20 and 21, ca 3.5 air mi WNW of Chalk Butte; ca 32.5 air mi NW of Wamsutter; ca 44.5 air mi NE of Rock Springs.
Low sagebrush flats on sandy-gravelly soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: ridge in Red Desert Basin, ca 16 air mi NW of Red Desert; ca 9.5 air mi SE of Chalk Butte.
Sparsely vegetated south facing slope with Oryzopsis, Stipa, and scattered sagebrush and rabbitbrush; fine sandy soil. Phenology: flowering.

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: buds.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Boggy Meadows, ca 4 air mi E of Separation Point; ca 6 air mi W of Rendle Spring.
Greasewood flat in basin; alkaline soil with sand. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Antelope Reservoir, ca 7 air mi W of Bare Ring Butte; ca 14 air mi NE of Eagles Nest Spring.
Slight north facing slope of hill with sagebrush and grasses; fine sandy soil with rocks. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Battle Spring Draw, ca 27 air mi SW of Bairoil; ca 26 air mi N of Wamsutter.
Disturbed roadside. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Disturbed roadside on top of knoll. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: sand dune ca 16 air mi N of Wamsutter; ca 8.5 air mi SE of Circle Bar Lake.
Slight south facing slope with sagebrush and grasses; fine sandy soil. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Indian Spring, ca 11 air mi WNW of Rawlins; ca 17 air mi ENE of Creston Junction.
Sparsely vegetated sandstone outcrop with scattered grasses; sandy, rocky soil. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Separation Flats, ca 14 air mi NW of Rawlins; ca 23.5 air mi S of Bairoil.
Bare sandstone knoll with sandy rocky soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: sand dunes near Honeycomb Buttes, ca 8.5 air mi NNW of Buffalo Hump Lake; ca 8 air mi SSE of Continental Peak.
Partially vegetated sand dunes with greasewood and grasses; sandy soil. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Popo Agie River Drainage: Box Spring, ca 20 air mi SE of Lander; ca 17 air mi W of Sweetwater Station.
Steep, partially vegetated east and west facing slopes of canyon with grasses, sagebrush, and scattered juniper; rocky sandstone soil with sandstone outcrops. Phenology: flowering.
Accession: 674684, Barcode: RM0058785

U.S.A., Wyoming, Goshen County: Fort Laramie National Historic Site.
42.2232° N, 104.575° W; NAD 83, uncertainty 700 ft., Nat. Geog. TOPO!
Sandy slope with Yucca, Calamovilfa. Rare; flower white. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Middle Fork Sage Hen Creek S of Beaver Divide and W of Rattlesnake Hills, 21.2 road mi NE along Agate Flat or BLM Road 2404 from U.S. Hwy 287.
Gravelly, sandy gentle slope, calcareous, and granite outcrops with sagebrush. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Ferris Mountains: Sand Creek Canyon at east end of range, ca 17 air mi N of Independence Rock.
Creek and adjacent sand dunes. Phenology: buds.
with Kevin J. Taylor

U.S.A., New Mexico, Rio Arriba County: Carson Nationa Forest and Vicinity: 1.5 mi SE of Pinabetoso Peaks, on road with cattleguard off U.S. Hwy 285, ca 15 air mi NNE of Tres Piedras.
Rangeland with Chrysothamnus, Bouteloua gracilis. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Pathfinder Reservoir: Tye Draw leading into reservoir, ca 8 air mi N of Seminoe Dam; ca 38 air mi NE of Sinclair.
Sandy embankment of draw leading into reservoir. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Brushy Mountain, southern half.
Pinyon/juniper above, lower slopes with sagebrush and rabbitbrush. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: at the northeast base of San Antonio Mountain, ca 4 air mi NNE of the summit on Forest Road 118, ca 18 air mi N of Tres Piedras; ca 5.5 air mi S of Colorado.
Clayey slopes with basalt cobbles and boulders with Gutierrezia, Chrysothamnus, Krashninnikovia, and grasses. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: north peak of Pinabetoso Peaks.
Volcanic outcrops with sheldered ledges and adjacent grasslands. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: cut and fill along old Chili Line Railroad Grade and adjacent roadside along U.S. 285.
Disturbed areas. Phenology: flowering.

U.S.A., Wyoming, Washakie County: Bighorn Basin: along Fifteen Mile or BLM Road 1429, ca 1 air mi E of North Fork Fifteen Mile Creek, ca 13 air mi NW of Worland.
Sandy areas with sagebrush on saltbush flats. Phenology: flowering.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Alkali Road or BLM Road 1111, ca 7.3 air mi N of Hyattville or ca 18.5 air mi ENE of Manderson.
Juniper woodland with sagebrush. Phenology: flowering.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Elk Creek or BLM Road 1101, ca 5.5 ESE of Manderson.
Sagebrush with grasses. Phenology: flowering.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: ca 7.3 air mi SSW of Basin and ca 6.7 air mi W of Manderson.
Sagebrush on sandy soil. Phenology: flowering.
with Michelle Wilson

U.S.A., Wyoming, Big Horn County: Bighorn Basin: SE of Wardel Reservoir dam, ca 13 air mi WSW of Basin and ca 16 air mi WSW of Greybull.
Sagebrush. Phenology: flowering.
with Michelle Wilson

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Wyo Hwy 789, ca 17 air mi NW of Greybull.
Greasewood and Salsola with sagebrush on silty sand. Phenology: flowering.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Foster Gulch or BLM Road 1119 (mapped as BLM Road 1919), ca 7 air mi SSW of Lovell and ca 26 air mi NW of Greybull.
Sagebrush on sandy soil. Phenology: flowering.

U.S.A., Colorado, Hinsdale County: Southern Gunnison Basin: San Juan Mountains: ca 0.2 road mi E of Cebolla Campground; ca 2.9 air mi W of Dry Lake; ca 11.8 air mi E of Lake City along Forest Road 788.
Roadside riparian. Phenology: flowering.

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: east side of County Road 32B, ca 3.5 air mi N of Saguache County; ca 5 air mi SSW of Gunnison.
Rolling sagebrush shrubland. Phenology: flowering.
Accession: RM 750535

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: intersection of County roads 27B and 27C at North Beaver Creek, ca 1.8 air mi NNE of Rudolph Hill; ca 10.5 air mi ESE of Gateview.
Riparian and adjacent sagebrush shrubland. Phenology: flowering.
Accession: RM 750534

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: County Road 31, ca 1.4 air mi ESE of Big Springs, ca 3 air mi NNE of Ninemile Hill; ca 4 air mi SSE of Blaine Rock.
Sagebrush shrubland/roadside. Phenology: flowering.
Accession: RM 750533

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: between Stubbs Gulch and Gold Basin Creek just N of Saguache County, ca 8.3 air mi SSE of Gunnison.
Sagebrush shrubland. Phenology: flowering.

U.S.A., Colorado, Chaffe County: Ruby Mountain Recreation Area: on County Road 300 ca 6.5 air mi SSE of Buena Vista; ca 15 air mi N of Salida.
Fine gravel wash in pinyon-juniper and ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Arizona, Mohave County: Arizona Strip: W of Toroweap Road on volcanic butte.
Juniper, Lycium, Ephedra, Atriplex, Muhlenbergia community. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Near Bairoil.
42.2446° N, 107.5562° W; NAD 83, uncertainty 1 mi., Digital Map
Dry desert areas in sandy soil. Flowers white and smaller than normal. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Near Bairoil.
42.2444° N, 107.5565° W; NAD 83, uncertainty 1 mi., Digital Map
In dry desert areas, sandy soil. Phenology: flowering.

U.S.A., Wyoming, Albany County: 5 mi E of Laramie.
41.3102° N, 105.4835° W; NAD 83, uncertainty 2 mi., Digital Map
Locally common in sandy gullies. Flowers pink. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Seminoe Mountains: near the dam.
42.1561° N, 106.9084° W; NAD 83, uncertainty 0.25 mi., Digital Map
In dry gravelly ravines. Phenology: flowering.

U.S.A., Wyoming, Sublette County: 10 mi N of Daniel.
43.0051° N, 110.1036° W; NAD 83, uncertainty 1.25 mi., Digital Map
Dry rolling hills. *Northern Sublette county* Phenology: flowering & fruiting.

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: Hogback Ridge, ca 7 air mi NNW of Hamilton Dome; ca 25 air mi NW of Thermopolis.
South-facing slopes of ridge composed of sandstone, conglomerate, and mudstone.

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: arroyo, ca 29 air mi NW of Wagonhound Bench; ca 6 air mi NW of Hamilton Dome.
Northeast-facing slopes and terraces along arroyo.
with George Jones

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: sand dunes W of County Road 351, ca 4.4 air mi SW of Seminoe Dam; ca 23.5 air mi NE of Sinclair.
Sand dunes; open areas and knolls of Artemisia cana, Psoralidium lanceolatum, and Chrysothamnus sp. Phenology: flowering.

U.S.A., Wyoming, Hot Springs County: 4.5 mi WSW of Kirby.
Disturbed area with Salsola and Stipa.

U.S.A., Wyoming, Park County: Ca 2 mi NW of La Barge.
Elev. 2077 m.
Multi-colored rock of the Wasatch formation; Wyoming/black sagebrush community. On sandy soil. Phenology: fruiting.
with B. Chesler

U.S.A., Wyoming, Fremont County: West Slope Wind River Range: Acorn Ridge, ca 4 air mi NW of Wyoming Highway 28, ca 37 air mi NE of Farson.
Sandy sagebrush grassland at base of ridge.
with Janie Stuttmann

U.S.A., Wyoming, Fremont County: Bridger Mountains: foothills on south side of Copper Mountain, ca 0.5 mi E of Hoodoo Creek; ca 3 mi W of Steffen Hill.
Sandy roadside at edge of Juniperus osteosperma-Elymus spicatus-Bouteloua gracilis community. Phenology: fruiting.

U.S.A., Arizona, Gila County: Tonto National Forest: 1 mile west of Parker Creek Station; near Steep Slope plot.
Accession number duplicated in the database: specimen not verified. Phenology: flowering.
Annotations:
Annotated by James L. Reveal in 1969.
Accession: RMRS 585

U.S.A., Arizona, Gila County: Tonto National Forest: 1 mile west of Parker Creek Station; near Steep Slope plot.
Phenology: flowering.
Accession: RMRS 586

U.S.A., Utah, Kane County: Near Dixie National Forest: Sand Dunes area; top of 3 Lakes Canyon.
Phenology: buds.

U.S.A., Arizona, Coconino County: Kaibab National Forest: North of Kane [Cane].
Phenology: flowering.
Annotated by James L. Reveal in 1969.
Accession: RMRS 579

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: along County Road 11, ca 1-1.5 mi S of County Road 28, ca 3-3.5 air mi NW of Buffalo Peak; ca 11.5 air mi WNW of Rand; ca 16-16.5 air mi SSW of Walden.
Roadside in sagebrush-rabbitbrush-grassland. Phenology: flowering.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: east side of Walden Reservoir, just W of Walden.
Roadside to shore. Phenology: flowering & fruiting.
1. Eriogonum cernuum Nutt.
Annotated by B. E. Nelson.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: along County Road 6 in the vicinity of Trappers Gulch at the south end of Battle Ridge, ca 11 air mi WNW of Cowdrey; ca 17 air mi NW of Walden.
Roadside on rolling sagebrush steppe. Phenology: flowering & fruiting.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: Carlstrom Reservoir (Cowdrey Lake), ca 1.2 air mi S of Cowdrey.
Shoreline to sagebrush uplands including old railroad bed and irrigation ditch. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: along west side of County Road 410, ca 4.4 air mi E of Independence Rock; ca 22.5 air mi NE of Three Forks Junction.
Sandy roadside. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Cave Hills.
T21N R5E S4
Shady cavern. Phenology: flowering.

Annotated by James L. Reveal in 1965.

U.S.A., Colorado, Mesa County: Colorado National Monument.
Pinyon-juniper woodland; sandy soil. Phenology: flowering & fruiting.
with Marjorie W. Porter

U.S.A., New Mexico, Sandoval County: Rio Puerco National Forest: Piedra Lumbre Allotment; 20 mi SW of Cuba.
Artemisia tridentata - Bouteloua gracilis habitat type. Phenology: flowering & fruiting.
Annotated by Charles Feddema in 1979.

U.S.A., Colorado, Chaffee County: Cochetopa National Forest: along North Cottonwood Road.
T14S R79W S10
On a 5% south-facing slope in shallow coarse gravel of a Ponderosa pine g grassland growing with grama grass and pingue, etc. Distributed in disturbed areas. Phenology: flowering & fruiting.
Clarke A. Anderson, 22. 8/27/1938.

U.S.A., Colorado, Larimer County: Zimmerman's Ranch, Home P. O., Cache de la Poudre.
Elev. 2350 m.
Large colony, local, in Artemesia tridentata-Chrysothamnus nauseousus association. Phenology: flowering & fruiting.
with J. Ewan

U.S.A., Colorado, Montrose County: W Paradox.
Dry flat. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison? Hinsdale? County: Above Cebolla, CO.
Dry places. Phenology: flowering & fruiting.

U.S.A., Colorado, Montrose County: Coventry.
Dry mesa land. Phenology: flowering & fruiting.

U.S.A., Colorado, Alamosa County: Alamosa.
Phenology: flowering & fruiting.

U.S.A., Colorado, Costilla County: San Luis Valley: East of Fort Garland.
Dry soil. Phenology: flowering & fruiting.

U.S.A., Colorado, Costilla County: San Luis Valley: 30 mi NE of Alamosa.
Frequent in woodland. Phenology: flowering & fruiting.

U.S.A., Colorado, Weld County: New Windsor, lake pasture.
Phenology: flowering & fruiting.

U.S.A., Colorado, Jackson County: North Park.
Phenology: flowering & fruiting.
George E. Osterhout, 1164. 7/3/1896.

U.S.A., Colorado, Jackson County: North Park.
George E. Osterhout, 453. 8/18/1894.

U.S.A., Colorado, Delta County: Delta.

U.S.A., Colorado, Archuleta County: Floodplain of the Piedra River near Piedra, CO.
On an open floodplain. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: Gunnison.
Dry soil. Phenology: flowering & fruiting.

U.S.A., Colorado, Lake County: Twin Lakes.
Dry sandy place. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: 1.5 mi W of Grand Junction.
Dry flats. Phenology: flowering & fruiting.
J. Francis Macbride, 703. 6/19/1915.
with Edwin B. Payson

U.S.A., Colorado, Lake County: Along CO Hwy 82 at the west end of Twin Lake Reservoir, about 0.5 mi W of Twin Lake (townsite) and 6.8 mi W of U.S. Hwy 24.
On sandy granitic soil associated with Artemisia and scattered Pinus. Phenology: flowering & fruiting.
with C. Rose Broome

U.S.A., Colorado, Park County: Along U.S. Highway 285, 17 mi S of Fairplay west of Antero Reservoir.
On low rolling hills associated with Artemisia, various grasses, and other scattered shrubs. Phenology: flowering & fruiting.
with C. Rose Broome

U.S.A., New Mexico, Sandoval County: 3.3 miles south of the junction of Interstate 25 and New Mexico Highway 22, 13 miles north of the junction of Interstate 25 and New Mexico Highway 44.
On low hills in sandy soil associated with Pinus, Artemisia, and several grasses. Phenology: fruiting.
with Gerrit Davidse

U.S.A., Colorado, Routt County: Hayden.
Along sandstone cliffs. Phenology: flowering & fruiting.

U.S.A., Colorado, Jackson County: Vicinity of Walden.
with L. C. Higgins

U.S.A., Colorado, Larimer County: Sand Creek S of Camel Rock and Castle Rock.
T12N R75W S23; also S26
In dry, sandy soil and common on dry slopes. Phenology: flowering & fruiting.
with G. Pierce

U.S.A., Colorado, Saguache County: Saguache.

U.S.A., Colorado, Mesa County: 15 mi NE of Grand Junction.
Sandy soil on top of a mesa. Phenology: flowering & fruiting.
1.
Annotated by L. Williams in 1965.

U.S.A., Colorado, Mesa County: 15 mi NE of Grand Junction.
Sandy soil of a mesa. Phenology: flowering & fruiting.
Annotated by Harold D. Harrington.
Accession: USFS 449265

U.S.A., Colorado, Gunnison County: Near Cebolla Creek, 10 mi south of Powderhorn.
Annual growing in tufts. Phenology: flowering & fruiting.
1.
Annotated by L. Williams in 1965.

U.S.A., Colorado, Gunnison County: Near Cebolla Creek, 10 mi south of Powderhorn.
Sagebrush vegetation type. Phenology: flowering & fruiting.
Accession: USFS 449266

U.S.A., New Mexico, Taos County: Carson National Forest: Questa District: Cebolla Mesa.
T28N R12E S23
Widely distributed. Phenology: fruiting.
Accession: USFS 449237

U.S.A., New Mexico, Sandoval County: Rito de los Frijoles.

U.S.A., Colorado, Lake County: Roadside 12 mi south of Leadville.
On sagebrush covered moraines. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Houserock Valley.
2% east slope; deep sandy gravel in grassland with yellowbrush, galletta, grama. Phenology: flowering & fruiting.
Annotated by James L Reveal.

U.S.A., Arizona, Coconino County: Flagstaff.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Kaibab Plateau, 2 mi E of junction of the Jacob Lake and Fredonia-Ryan Road.
Rocky, sandy exposures under Quercus. Phenology: flowering.
Annotated by James L Reveal in 1971.

U.S.A., Arizona, Mohave County: Grand Canyon National Park: Mount Logan.
T34N R9W S12
Volcanic soils in ponderosa pine-Populus tremuloides-Quercus gambelli community. Phenology: flowering.

U.S.A., New Mexico, no county County: Between El Paso, Texas and Socorro, New Mexico.
Gravel hillside. Phenology: flowering.
Annotated by James L Reveal in 1965.

U.S.A., Arizona, Yavapai County: Tusayan National Forest: Ash Fork Ranger Station pasture.
Level ground with dry, gravelly loam; woodland with blue grama, erigonum. Phenology: flowering & fruiting.
Annotated by James L Reveal.

U.S.A., Arizona, Mohave County: Southeast of Cane Spring in Upper Pocum Wash.
T38N R14W S35

U.S.A., Arizona, Coconino County: Kaibab National Forest.
Woodland roadside with Salsola kali. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: 7 mi E of Jacob Lake.
In pine-woodland transition with Artemisia, Chrysothamnus, Bouteloua gracilis, Poa fendleriana, Agropyron. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: 2 mi N of Kane [Cane].
Flat slope, gravelly soil, with grama and sagebrush. Phenology: flowering.
Annotated by James L Reveal.

U.S.A., Arizona, Mohave County: Kaibab National Forest: Mount Trumbull.
6 % north slope; volcanic soil in yellow pine timber. Phenology: flowering & fruiting.

U.S.A., Arizona, Apache County: Navajo Indian Reservation: near Ganado.
Annotated by James L Reveal in 1965.

U.S.A., Wyoming, Carbon County: South-central Wyoming: west end of Mexican Flats N of South Barrel Springs Draw, ca 44 air mi SW of Rawlins; ca 21 air mi NNW of Baggs.
Low sand dunes interspersed with red and gray badlands and clay flats. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: ridge ca 1 mi N of Alkali Wash and opposite BLM Road 4408 along Patrick Draw or County Road 24, ca 6-7 air mi NW of Pine Butte; ca 29 air mi SE of Rock Springs.
Rolling, sandy sagebrush with juniper woodland in sandstone areas. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along Patrick Draw or County Road 24, ca 1.5 air mi SW of Bitter Creek siding, ca 32.5 air mi E of Rock Springs; ca 31.5 air mi WSW of Wamsutter.
Roadside and adjacent bladed areas. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: along Muddy Creek and the Overland Trail, ca 6 air mi SW of Bridger Pass, ca 25 air mi SW of Rawlins; ca 31.5 air mi NNE of Baggs.
Roadside. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: from Cooper Ridge to Salt Wells Creek E of the confluence of Pretty Water and Salt Wells creeks, ca 21 air mi SSE of Rock Springs.
Sandy, rocky slopes. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Green River Basin: sand knolls ca 1.5 air mi N of The Wells; ca 5 air mi W of White Mountain; ca 23.5 air mi NNW of Rock Springs.
Rocky soil on top. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: northern slopes and top at north end of Essex Mountain, ca 32 air mi NNE of Rock Springs.
Sandy draw. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: south facing draws on drainage from Black Buttes area, ca 3 air mi NNE of Black Buttes; ca 1.5 air mi W of Bitter Creek; ca 22 air mi ENE of Rock Springs.
Sandy draw. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Sandy soil. Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: Washakie Basin: NW of Robbers Gulch Reservoir, ca 4 mi E of North Flat Top; ca 31 air mi SSE of Wamsutter.
Sandy soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Green River Basin: creek bottom near the confluence of Alkali Creek and Scott Canyon Creek and adjacent hillsides and draws to the SE, ca 1.5 air mi NE of the Green River; ca 18 air mi WNW of Rock Springs.
Rocky draw. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: slopes and draws, ca 1 air mi E of Killpecker Creek; ca 1 air mi SW of Stansbury Mine; ca 6.5 air mi NNE of Rock Springs.
Clay draw with sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Sandy draw with juniper and sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: draws and rolling hills of North Baxter Basin, ca 3 air mi S of Crooked Canyon; ca 10 air mi E of White Mountain; ca 13 air mi NNE of Rock Springs.
Edge of draw in thick sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Rock Springs Uplift: slopes and draws draining W to North Baxter Basin, ca 3 air mi W of South Superior; ca 15 air mi NNE of Rock Springs.
Draw with Purshia. Phenology: flowering.

Sandy clay flat. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: just W of Rainbow Camp, ca 20 air mi SW of Big Piney.
Shaley slopes and badlands. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: northeast side of the Hogsback, ca 18 air mi SW of Big Piney.
Calcareous slopes and outcrops. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: "Five Buttes", ca 5.3 air mi of Jay Em; ca 27.5 air mi N of Lingle, just E of U.S. Hwy 85.
Slopes of the buttes. Phenology: flowering.

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: along Sand Draw in the vicinity of Sand Draw and Voss Springs, ca 5 air mi WNW of Kirby, ca 12.5 air mi NNW of Thermopolis.
Second bench above the stream. Phenology: flowering.

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.

U.S.A., Wyoming, Sweetwater County: Washakie Basin: ca 37.5 mi S of I-80 on Bitter Creek or County Road 19, ca 30.5 mi S of Bitter Creek.
Frequent in sandy soil on roadside with Oryzopsis.

U.S.A., Wyoming, Carbon County: Hanna Basin: ca 8 air mi W of Hanna, ca 28 air mi ENE of Rawlins. Energy Development Corporation coal lease.
Common on north-facing slope in upland sagebrush-disturbed area with Artemisia tridentata and Gilia.
with Dick Maguire, Mariah Associates

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Fish Creek/Moccasin Basin area, along Fish Creek just below confluence of North and South Forks, ca 28.5-29.5 air mi ENE of Jackson.
Steep banks. Phenology: flowering.

U.S.A., Wyoming, Washakie County: Bighorn Basin: ca 5.5 air mi S of Worland on the Nowater Trail.
Sandy soil in sagebrush grassland.

U.S.A., Wyoming, Fremont County: East side of Boysen Reservoir, southern edge of bay.
Sandy beach. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: Willow Creek, ca 5 air mi NW of Muddy Gap Junction (Three Forks).
Dry, sandy drainage. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Top of Beaver Rim, butte W of Dishpan Butte, ca 7 air mi NNW of Sweetwater Station.
Slopes of butte. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Flats, across U.S. Hwy 26 from Haines Farm, ca 9 mi W of Riverton on Wyo Hwy 26.
Sagebrush grassland and badland slopes and bottoms. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Flats, across U.S. Hwy 26 from Paradise Valley Road, ca 6 air mi WNW of Riverton.
Steep sagebrush grassland slopes and badland slopes and bottoms. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Sweetwater River, south of bridge across river on Agate Flats Road, ca 9.5 air mi ENE of Jeffrey City.
Base of rock outcrop above river, at edge of sagebrush grassland. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Sweetwater County: Freighter Gap.
Sandy slopes. Phenology: flowering.

Sedge meadow along creek, clay bench above; bench.

Rocky sagebrush plains and ridges, cobble surface on ridge top, rich drainages, large sandstone buttes with outcrops, talus slopes, aspen stand on north slope, stock pond below spring; roadside. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Rock Springs Uplift: above Dry Canyon, and along Salt Wells Creek, ca 24 air mi SE of Rock Springs.
Sandstone uplift above canyon, with sandy areas, and Juniperus osteosperma, Pinus flexilis, Pseudotsuga, Cercocarpus montanus and C. ledifolius, on broad expanse of exposed rock, flats along creek; sand. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Powder River Basin: ca 8 air mi NW of Lance Creek.
Sandy plains, deep draws, sandstone outcrops; plains, above draw. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Sandy plain, sandstone ridge, with outcrops; ridge. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Hanna Basin: Seminoe Reservoir, ca 12.5 air mi SSE of Seminoe Dam.
Shoreline with Rorippa calycina, Camissonia scapoidea, and Potentilla rivalis. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Alcova Reservoir, ca 3 air mi WSW of Alcova Dam.
Sandy Slopes. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: adjacent to Pole Creek Road, ca 4.5 air mi S of Half Moon Lake, 7 air mi E of Pinedale.
Dry, sandy-rocky roadside dominated by sagebrush and tumble mustard. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: West Slope Wind River Range: Adjacent to Emigrant Trail (Lander Cutoff) Dirt Road on the Continental Divide, ca 3 air mi E of east flank of Prospect Mountains, ca 37 air mi NE of Farson.
Open, gravelly-sandy sagebrush-rabbit brush flats on high ridge.

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

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: above Spring Creek along a County Road between Redbird or County Road 11 and Wasserburger or County Road 13, ca 19 air mi NE of Lance Creek; ca 25 air mi N of Lusk.
Rough breaks and flats at the bottom. Phenology: flowering.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: in the canyon along Spring Creek, ca 34 air mi NNW of Cheyenne; ca 11 air mi ENE of Farthing (Iron Mountain).
In a broad sand wash in the bottom of a canyon. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Muddy Creek off Spanish Diggings or County Road 34 ca 3 air mi E of Converse County, ca 13.8 air mi SW of Manville, ca 20.5 air mi WSW of Lusk.
Sandy roadside. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 17.5 air mi NW of Farson.
Sagebrush draw with gravel hillsides and sparse sagebrush. Phenology: flowering & fruiting.
with Jane T. Kellett

U.S.A., Wyoming, Sweetwater County: Green River Basin: East Buckhorn Draw at the confluence with West Buckhorn Draw in Eighteenmile Canyon, ca 20 air mi WNW of Farson.
Shale and sandstone canyonside with sparse sagebrush. Phenology: flowering.
with Jane T. Kellett

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 26.5 air mi WNW of Farson.
Shale and sandstone canyonside with sparse Atriplex and sagebrush. Phenology: flowering.
with Jane T. Kellett

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Hillside aspen, sagebrush, and Douglas fir at base of cliffs. Phenology: flowering.
with Jane T. Kellett and Steve Laster

U.S.A., Wyoming, Sublette County: Green River Basin: ca 1 air mi NE of Big Sandy.
Dry creekbed with adjacent meadows, willow stands, and sagebrush hillsides. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: east end of Fontenelle Reservoir Dam, ca 3 air mi N of Fontenelle.
Reservoir edge with rabbitbrush, sagebrush, and assorted Chenopodiaceae. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Ryegrass Reservoir, ca 4 air mi SW of Daniel.
Meadows on reservoir edge surrounded by sagebrush and rabbitbrush. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Horse Creek, ca 4.5 air mi SE of Merna.
Sandstone bluff above creek, sagebrush, aspen groves, and scattered limber pine. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy Reservoir and River, ca 9.5 air mi N of Farson.
Reservoir edge sagebrush, riverside meadows and sagebrush. Phenology: flowering.
with Ben and Becky Cramer

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy River at Gasson Bridge, ca 20 air mi E of Fontenelle Dam.
Riverside meadows, sagebrush, and open hillsides. Phenology: flowering.
with Ben and Becky Cramer

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy River, ca 1 air mi SW of Farson.
Riverside meadows, sagebrush, and open hillsides. Phenology: flowering.
with Ben and Becky Cramer

U.S.A., Wyoming, Sublette County: Green River Basin: ca 5 air mi ESE of Big Piney.
Sagebrush sandy slope. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 5.5 air mi E of Fontenelle Dam.
Sandy roadside with occasional clay patches. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 15 air mi WSW of Farson.
Sagebrush sand dunes with Grayia and Tetradymia. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 11.5 air mi NW from Farson ice cream store.
Open grassland. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: ca 8 air mi W of Farson.
Sagebrush grassland hillsides and draws. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 10 air mi SW of Daniel.
Gravel hillsides with clay spots and sparse sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Water Hole Draw at Big Sandy River, ca 23.5 air mi N of Farson.
Clay alkaline sides of draw bottom. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 14.5 air mi SW of Boulder.
Sandy sagebrush around badlands outcrop. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 6 air mi SW of Boulder.
Gravel sagebrush bluffside above river. Phenology: flowering.

U.S.A., Colorado, Alamosa County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Luis Valley: by radio tower on road to Zapata Falls, N of Blanca.
Pinyon-juniper-Bouteloua. Phenology: flowering.

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Jelm Mountain, ca 1 mi E of New Jelm, ca 2 air mi SE of Woods Landing.
Dry sagebrush steppe. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Saratoga Valley: Sheep Rock area, ca 2 air mi NW of Sixmile Hill and ca 7 air mi NNW of Saratoga, along County Road 508 (Pick Bridge Road).
Sagebrush hills. Phenology: flowering.

U.S.A., Colorado, Chaffee County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 0.7 road mi on County Road 212 from intersection with County Road 210.
By stream and adjacent slopes; dominant species: Artemisia, skunkbrush, pinyon, juniper, and aspen. Phenology: flowering & 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: Sangre de Cristo Range: Howard Creek, ca 1 air mi upstream from confluence with Porters Gulch.
Coniferous forest mixed with oak and grassland. Phenology: flowering.
Annotated by Brian Elliott.

U.S.A., Colorado, Chaffee County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: ca 1-2 air mi S of Salida (city center).
Pinyon-oak shrubland with grassy openings. Phenology: flowering.
Annotated by Brian Elliott.

U.S.A., Wyoming, Niobrara County: Ca 7 mi NE of Lance Creek.
Sandstone outcrop, with Astragalus hyalinus, Corispermum. Flower color white. Phenology: flowering.

U.S.A., Colorado, Costilla County: [location and coordinates withheld]
Pinus edulis, Artemisia tridentata. Phenology: buds.
with Pete Schneider

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.

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.
Steep hillslopes and ridgetop on loamy to sandy soil. Phenology: flowering.
Joseph L. M. Charboneau, 2645. 7/31/2010.

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.
Joseph L. M. Charboneau, 2803. 8/3/2010.

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 47 at junction of Baculite Mesa Road, ca 1 mi E of the University of Southern Colorado; northeastern edge of Pueblo.
Atriplex confertifolia-Buchloe dactyloides landscape. Phenology: buds.

U.S.A., Montana, Custer County: U.S. Range Livestock Experiment Station: above Cedar Spring.
Top of ridge; gravelly soil. Phenology: vegetative only.

U.S.A., Montana, Custer County: U.S. Range Livestock Experiment Station: Lignite Creek.
Soil scabland. Phenology: flowering.

U.S.A., Montana, Carbon County: Big Horn Canyon National Recreation Area: W of Big Horn River.
T9S R28E S26
On Chugwater sandstone bedrock. Phenology: flowering.
with D. Ditolla, R. Myers

U.S.A., Montana, Wheatland County: Ca 2 mi W of Hedgesville.
Sandy wash. Phenology: flowering.

U.S.A., Montana, Gallatin County: Logan.
Dry hillside. Phenology: flowering.

U.S.A., Montana, Cascade County:
Phenology: flowering.

U.S.A., Wyoming, Fremont County: Upper North Platte and Laramie River Drainages: W of Gas Hills Road, ca 6.9 air mi NE of Jeffrey City.
Sandy road cut and adjacent sagebrush-grassland. Phenology: flowering.

Eriogonum cernuum ()
U.S.A., Colorado, Grand County: Blue Valley Ranch.
40.0028° N, 106.37249° W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!
Cynthia Villa, 54CV. //.

U.S.A., Wyoming, Albany County: Sheep Mountain.
41.2828° N, 106.0647° W; NAD 83, uncertainty 0.5 mi., Digital Map
Waste, sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Head of Woods Creek.
On the road grade in sunny canyons. Phenology: flowering.

U.S.A., Colorado, Saguache County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Cochetopa Hills: McIntyre Ridge, 4-4.5 air mi ENE of Saguache.
Volcanic rock outcrops. Phenology: flowering.

U.S.A., Colorado, Saguache County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Luis Valley: Rattlesnake Hill, 4 mi E of Saguache.
Volcanic outcrops and roadside. Phenology: flowering.

U.S.A., Colorado, Alamosa County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Luis Valley: Colo Hwy 150, 1.2 road mi N of U.S. Hwy 160.
Roadside. Phenology: flowering.

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: Tabeguache Trail or SS Road, between Gibbler Gulch and Dominguez Canyon, ca 26 air mi WNW of Delta.
Pinyon/juniper and sagebrush on very sandy soil. Phenology: flowering.
1. Eriogonum cernuum Nutt..
with Gay Austin

U.S.A., Wyoming, Fremont County: Wind River Basin: Shoshone Indian Reservation: N of the Wind River.
T5N R1W
Low rainfall area. Phenology: flowering.
Annotated by James L. Reveal on 3//1965.
James Carrig, 24. //1958.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: ca 8 air mi SE of Buckboard Crossing; ca 9.1 road mi S of Buckboard Road on Wyo Hwy 530, then 1.3 road mi E of Wyo Hwy 530.
41.1403° N, 109.5754° W; uncertainty .5 mi., Digital Map
Tamarix invading shoreline; rabbitbrush-sagebrush community on edge of lakeshore; gentle slopes. Phenology: flowering.

U.S.A, Idaho, Butte County: Arco Hills: base of hill "5986", near junction of U.S. Hwy 20/26 and Ida Hwy 22/88, 7.1 air mi E of Arco.
25-75 plants estimated in xeric fine textured soil within shrub-steppe vegetation, 9 degree slope, SSE aspect, tholeiite geology. 25-75 plants estimated. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: Blacks Fork river bottom, ca 11 air mi SW of Green River; north side of the Blacks Fork; east side of Wyo Hwy 530.
41.3791° N, 109.6187° W; uncertainty 1 mi., Digital Map
Level clay outcrops rising above the river bottom. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: ca 16 air mi SW of Green River; Blacks Fork crossing on east side of Wyo Hwy 530 on south side of the river.
Shoreline. Phenology: flowering.

U.S.A., Colorado, Mesa County: Uncompaghre Plateau: Dominguez Road and Tabegauche Trail, ca 27.5 air mi WNW of Delta.
Pinyon/juniper with scattered ponderosa pine on sandstone mesa. Phenology: flowering.
1. Eriogonum cernuum Nutt..

U.S.A., Colorado, Mesa County: Uncompaghre Plateau: Cactus Park, ca 25 air mi WNW of Delta.
Pinyon/juniper in sandstone canyons. Phenology: flowering.
1. Eriogonum cernuum Nutt..
with Margarette J. Lyon

U.S.A., Colorado, Montrose County: Uncompaghre Plateau: Monitor Mesa, ca 16.5 air mi SW of Delta.
Pinyon/juniper on sandstone mesatop. Phenology: flowering.

U.S.A., Colorado, Delta County: Escalante Canyon Road and Dominguez Rim, ca 12 air mi WNW of Delta.
Juniper, sagebrush, and galleta grass on sandstone mesa. Phenology: flowering.

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: mesa top above East Fork Roatcap Gulch, off of H54 Road, ca 15 air mi SSW of Delta.
Pinyon/juniper community. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Ferris Mountains: Sand Creek Canyon at east end of range, ca 17 air mi N of Independence Rock.
Creek and adjacent sand dunes. Phenology: buds.
Accession: (unaccessioned)

U.S.A., Wyoming, Lincoln County: Nugget Canyon.
2. Eriogonum cernuum Nutt. var. cernuum
Annotated by James L. Reveal on 3//1965.
Serena Philips, s.n.. 9/19/1919.

U.S.A., Wyoming, Lincoln County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: just W of Rainbow Camp, ca 20 air mi SW of Big Piney.
Shaley slopes and badlands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: N of Arminto.
Reddish sandy soil with Astragalus and Cryptantha. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Great Divide Basin and Adjacent Regions: Hells Half Acre.
Erosional badlands on argisol. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Buffalo.
2. Eriogonum cernuum Nutt. var. cernuum
Annotated by James L. Reveal on 3//1965.

U.S.A., Wyoming, Park County: Yellowstone National Parks: near Mammoth Hot Springs.
Dry sandy soil. Phenology: flowering.
F. H. Burglehaus, s.n.. 8//1893.

U.S.A., Wyoming, Park County: Shoshone Canyon.
2. Eriogonum cernuum Nutt. var. cernuum

U.S.A., Wyoming, Sublette County: Big Piney.
Sandy roadside. Phenology: flowering & fruiting.
with Lois B. Payson

U.S.A., Wyoming, Sublette County: Pinedale, above the museum.
Roadside, sandyt-gravelly soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Foothills E of the Wyoming Range: near South Horse Creek, 4.5 mi N of the Ryegrass Junction.
Bare sand hills. Phenology: flowering & fruiting.
with John S. Shultz, Kirsten Shultz

U.S.A., Wyoming, Sublette County: 5 mi E of Big Piney, near the Green River.
Dry, chalky hills with low sagebrush. Locally common. Phenology: flowering & fruiting.
Annotated by James L. Reveal.
with Marjorie W. Porter

U.S.A., Wyoming, Big Horn County: Laramie Hills.

U.S.A., Wyoming, Albany County: Laramie.
Sandy draw. Phenology: flowering.

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

U.S.A., Wyoming, Big Horn County: Bighorn Basin: near Fenton Draw, 4.5 mi N of Tatman Mountain.
Growing on bare sand on the slopes of a large ravine about 30 feet deep. Phenology: flowering.
with Maureen Cogger

U.S.A., Wyoming, Carbon County: Along RR right of way parallel to U.S. Hwy 30, 11.5 mi W of Medicine Bow, 2.7 mi W of Como.
Grassy slope. Flowers white; plants 1-1.5 dm tall. Phenology: flowering.
Annotated by James L. Reveal.

U.S.A., Wyoming, Carbon County: Sage Creek.
Rocky slope with Oryzopsis, Artemisia tridentata, Chrysothamnus viscidiflorus. Phenology: flowering.

U.S.A., Wyoming, Converse County:
Elev. 1320 m.
Accession: USFS 620798, Barcode: USFS0069127

U.S.A., Wyoming, Teton County: Gros Venture Slide.
with Mildred S. Reed

U.S.A., Wyoming, Uinta County: 1.5 mi S of Evanston.
Dry sagebrush hillside. Phenology: flowering.

U.S.A., Wyoming, Uinta County: South Haystack Coal Site.
Sandy soil; with Artemisia tridentata. Meadow Draw Quadrangle. Phenology: flowering.
with R. R. Irish

U.S.A., Wyoming, Uinta County: Evanston.

U.S.A., Wyoming, Uinta County: 8 mi E of Evanston.
Sandy soil. Annual. Phenology: flowering.
with Carlos Munoz

U.S.A., Wyoming, Sweetwater County: 1 mi E of Table Rock.
Sagebrush desert. Phenology: flowering.

U.S.A., Wyoming, Washakie County: W of Worland, on the lower part of the Fifteenmile drainage area.
Sandy soil in lowland area; Willwood formation. 5-9 inch precipitation zone. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: 25 mi S of Green River, on the road to Manila.
Saltbush-shadscale desert. Phenology: fruiting.
with Marjorie W. Porter

U.S.A., Wyoming, Washakie County: 15 mi SE of Ten Sleep.
Sandy soil, big sage community. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: North side of I-80 at Baxter Road (Exit #111).
Grassland. Phenology: flowering & fruiting.
with Jane P. Nelson

U.S.A., Wyoming, Sweetwater County: Washington's Ranch.
Dry soil. Phenology: flowering.
with E. N. Wilcox

U.S.A., Wyoming, Fremont County: Wind River.

U.S.A., Wyoming, Fremont County: W of Riverton, rim of flats S of Landwer's.

U.S.A., Wyoming, Fremont County: Lysite Badlands: just W of Moneta-Lysite Road, ca 2 air mi N of Moneta.
Wash and eroded slopes. Phenology: flowering.
with Claudia Mitchell

U.S.A., Wyoming, Fremont County: Lysite Badlands: eroded slopes draining N into Badwater Creek.
Badlands slope. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Wyoming Game and Fish Department Ocean Lake Unit: near Ocean Lake, Smith property.
Dry hilltop along road. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Ca 12 mi NNE of Jeffery City.
42.6932° N, 107.7209° W; NAD 83, uncertainty 3 mi., Nat. Geog. TOPO!
Roadside with Polygonum and Artemisia. Perianth white. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy Reservoir and River, ca 9.5 air mi N of Farson.
Reservoir edge sagebrush, riverside meadows and sagebrush. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Rock Springs Uplift: adjacent to U.S. Hwy 191 at milepost 25 N of Rock Springs (on west side of highway).
Basin big sagebrush/Nuttall saltbush flats at base of low ridge on sandy-clay soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Washakie Basin: east bank of Sand Creek ca 1/4 mi N of County Road 700, ca 1/4 mi W of Carbon County, ca 14 air mi WNW of Baggs.
Fine textured shaley-sandy dune stabilized through cover of shrubs (especially Atriplex canescens). Phenology: flowering.

U.S.A., Wyoming, Sweetwater County:
T20N R96W
Sandy soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Ca 6 mi N of Wamsutter.
Along roadside of Atriplex patches. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: On the western side of Flaming Gorge Reservoir, near Utah.
Sagebrush-shadscale desert. Locally common; perianth pink. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin and Adjacent Regions: Red Desert, Steamboat sand dunes.
T23N R102W S21; also S22

U.S.A., Wyoming, Sweetwater County: Ca 35.5 air mi SW of Pilot Butte; ca 25 air mi SW of Green River.
Associated with Artemisia tridentata, Tetradymia canescens, Bromus tectorum, and Astragalus spp.; on sandy soil soil in sagebrush-grassland inclusion in badlands. Phenology: buds.

U.S.A., Wyoming, Sweetwater County: Above Little Bitter Creek, ca 11 air mi ESE of Green River and 7 air mi WSW of Rock Springs.
T18N R105W S33 South1/2
Rocky outcroppings in a juniper forest with Artemisia tridentata, Cryptantha caespitosa, Clematis ligusticifolia, Solidago multiradiata, Woodsia oregana, and Aristida purpurea. Phenology: flowering.

Sandy plateaus and clay bottoms, rolling hills with salt desert shrub. Phenology: buds.

U.S.A., Wyoming, Sweetwater County: 6.5 mi N of Wamsutter on the Jeffrey City Road.
Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Gravelly clay soils, some sands, gentle sagebrush slopes. Phenology: flowering.

U.S.A., Utah, Daggett County: Southwestern Wyoming and Adjacent Utah: Clay Basin: Teepee Mountains, ca 11.5 air mi ENE of Dutch John.
Sandstone boulders and cliff face, sandy soils, south aspect, steep slopes. Phenology: buds.
Accession: (unaccessioned)

U.S.A., Wyoming, Albany County: West slope Laramie Range: ca 1.1 mi NE of U.S. Hwy 30, ca 3.3 air mi W of downtown Laramie.
Limestone slope, gravelly silt, south aspect, above draw; with Achnatherum hymenoides Phenology: flowering.

U.S.A., Utah, Daggett County: Southwestern Wyoming and Adjacent Utah: Browns Park: Green River, ca 13 air mi ESE of Dutch John; 1.8 mi S of junction of Jarvie Ranch/Browns Park roads on west side Browns Park Road.
T2N R25E S30 South1/2; also N1/2 S31
Upland, sandy soils, scattered juniper, salt desert shrubs. Phenology: flowering.
with Barbara McNight

U.S.A., Wyoming, Uinta County: [location and coordinates withheld]
Salt desert shrubs, sandy soils, calcium carbonate deposits from a mineral spring. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Linwood Canyon, ca 2.8 air mi NE of Manila, Utah on both sides of Wyo Hwy 530.
Semi-barren desert hills, scattered juniper, red sandstone outcrops. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Steamboat Lake S of Wyo Hwy 220, ca 19 air mi W of Alcova townsite.
Sandy basin of sagebrush, rabbitbrush, and grasses. Phenology: flowering.

Eriogonum cernuum ssp. glaucescens (1884)
Eriogonum cernuum Nutt. ssp. glaucescens S. Stokes
U.S.A., New Mexico: Albuquerque.
Type Specimen: Isotype for Eriogonum cernuum Nutt. ssp. glaucescens S. Stokes. Eriogonum 41. 1936.
2. Eriogonum cernuum Nutt. ssp. glaucescens S. Stokes
Annotated by James L. Reveal in 1977. Isotype. = E. rotundifolium Benth. in DC.
1. Eriogonum rotundifolium Benth..