Sporobolus cryptandrus (1997)
POACEAE
Sporobolus cryptandrus (Torr.) A. Gray
U.S.A., Colorado, Fremont County: [location and coordinates withheld]
Along the open, sandy banks of the stream in pinyon-juniper. Phenology: vegetative only.
with Irene Thien
Accession: RM (unaccessioned)

Sporobolus cryptandrus (1997)
POACEAE
Sporobolus cryptandrus (Torr.) A. Gray
U.S.A., Wyoming, Park County: Northern Absaroka Area: east side of Sheep Mountain, ca 8 air mi SW of top of Cedar Mountain.
Eroded shales and sandstones with wet spots. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.
with Jim Fowler
Accession: USFS 856085, Barcode: USFS0040358

Sporobolus cryptandrus (1997)
POACEAE
Sporobolus cryptandrus (Torr.) A. Gray
U.S.A., Wyoming, Park County: Northern Absaroka Area: east side of Sheep Mountain, ca 11 air mi SW of Cedar Mountain.
Sedimentary slopes with wet spots. Phenology: flowering.
with Jim Fowler
Accession: USFS 856084, Barcode: USFS0040357

U.S.A., Wyoming, Park County: Northern Absaroka Area: Rock Creek and South Fork Road, ca 17 air mi SW of Cedar Mountain summit.
Elev. 6500 ft.
Disturbed areas and under cottonwoods. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.
Accession: USFS 856083, Barcode: USFS0040460

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: along the Cheyenne River from Sheep Creek down stream ca 1 mi, ca 22 air mi NE of Bill; ca 54 air mi NNE of Douglas.
Elev. 4290 ft.
Sandy silt flats along the river with scattered cottonwood. Phenology: flowering & fruiting.
with Peter 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.
Sandy slopes with sandstone outcrops. Phenology: flowering & fruiting.
Annotations:
1. Sporobolus cryptandrus (Torr.) A. Gray
Annotated by Peter J. Ebertowski.
Accession: RM (unaccessioned)

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.
Annotations:
1. Sporobolus cryptandrus (Torr.) A. Gray
Annotated by Peter J. Ebertowski.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: along Antelope Creek at Phillips or Forest Road 973, ca 17 air mi N of Bill; ca 51 air mi N of Douglas.
Elev. 4460 ft.
Sand flats in the stream bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Lodgepole Creek on Wyo Hwy 116, ca 30 air mi W of Newcastle; ca 17 air mi SSW of Upton.
Roadside adjacent to sagebrush/grassland. Phenology: fruiting.

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 & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills E of Wildcat Creek on Wyo Hwy 450, ca 30 air mi WSW of Newcastle; ca 37 air mi E of wright.
Roadside in sagebrush/grassland. Phenology: fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: West Plum Creek on Plum Creek Road, ca 6.5 air mi NW of Newcastle; ca 21 air mi SE of Upton.
Roadside along creek. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: South Branch Beaver Creek on Wyo Hwy 116, ca 6.5 air mi SW of Upton; ca 19 mi SE of Moorcroft.
Roadside in sagebrush/grassland. Phenology: fruiting.
Peter J. Ebertowski, 2570. 8/4/2002.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Wyo Hwy 450, N of Little Thunder Creek, ca 25 air mi ESE of Wright; ca 3 air mi E of Campbell County.
Roadside in sagebrush/grassland. 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: Thunder Basin National Grassland and Vicinity: Pine Creek on Wyo Hwy 116, ca 0.9 mi NE of Upton; ca 20 air mi SE of Moorcroft.
Roadside along grassland and creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Creek floodplain dominated by Sporobolus airodes. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: School Creek ca 1.5 air mi S of its confluence with Little Thunder Creek, on School Creek or Forest Road 968, ca 17 air mi ESE of Wright; ca 47 air mi SSE of Gillette.
Grassy ravine above reservoir. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: Cheyenne River at Charlies Draw on Dutch Joe or County Road 85, ca 9 air mi W of Mule Creek Junction; ca 33 air mi SSW of Newcastle.
Floodplain terrace, widely spaced cottonwoods. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: Hungry Hollow on Cheyenne River or County Road 6, ca 34 air mi SSW of Newcastle; ca 52 air mi SSE of Upton.
Creek bank. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: 77 Hills on Wyo Hwy 270, ca 4.8 air mi N of Manville; ca 11 air mi NW of Lusk.
Mix ponderosa pine and grassland on silt-sand soil. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: along U.S. Hwy 85 between Bobcat Creek and Cheyenne River, ca 28 air mi S of Newcastle; ca 5 air mi N of Mule Creek Junction.
Roadside in sagebrush/grassland. 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.
Peter J. Ebertowski, 3650. 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.
Peter J. Ebertowski, 3743. 9/2/2002.

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.
Needle-and-thread grass grassland with patches of yucca and prairie sandreed. 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.
Grassland, Carex filifolia and Calamovilfa longifolia abundant. Phenology: flowering.

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: fruiting.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Brown Springs Creek, on two-track off Ross or County Road 31, ca 32 air mi NW of Douglas; ca 22 air mi NNE of Glenrock.
Sandy ravine floor below spring. Phenology: flowering.

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.
Area around dry oil well. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Antelope Creek, ca 0.5 mi W of its confluence with Wildcat Creek, on Forest Road 949, ca 28 air mi SE of Wright; ca 51 air mi NNE of Douglas.
Deep, fine sand above first stream terrace. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Sitgreaves National Forest: ca 50 air mi SSW of Winslow on Forest Road 34 (continuation of Ariz Hwy 99) at junction with Forest Road 211.
Pinyon/juniper with pondrosa pine scattered and roadside; roadside. Phenology: flowering.
Annotations:
1. Sporobolus cryptandrus (Torr.) A. Gray
Annotated by B. E. Nelson.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Kaibab Plateau: between U.S. Hwy 89A and House Rock Canyon in the vicinity of the scenic overlook, ca 8-8.5 air mi E of Jacob Lake; ca 29.5-30 air mi SE of Fredonia.
Steep slopes above the canyon with limy ledges. Phenology: fruiting.
with James F. Fowler

U.S.A., Arizona, Coconino County: Kaibab National Forest: Kaibab Plateau: along Ariz Hwy 67, ca 3.5 air mi SSE of Jacob Lake; ca 27 air mi SE of Fredonia.
Right-of-way and roadside. Phenology: flowering & fruiting.
with James F. Fowler

U.S.A., Arizona, Coconino County: Kaibab National Forest: Kaibab Plateau: at the junction of Forest roads 425 and 232 in Indian Hollow at the north end of Big Saddle, ca 20.5 air mi SW of Jacob Lake; ca 34 air mi S of Fredonia.
Disturbed area in and around corral. Phenology: fruiting.
with James F. Fowler

U.S.A., Arizona, Apache County: Apache National Forest: mesa on east side of Murray Basin, ca 2 air mi E of Flat Top, ca 4.5 air mi SE of Springerville.
Old ripped out section of highway with chunks of asphalt. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Coconino Plateau: along Forest Road 302, ca 3 air mi S of South Rim Grand Canyon, ca 9.5 air mi ESE of Tusayan; ca 55 air mi NNW of Flagstaff.
Meadow and shallow valley. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Coconino Plateau: Coconino Rim off Coconino Rim or Forest Road 310, ca 5.5 air mi S of South Rim Grand Canyon, ca 12.5 air mi ESE of Tusayan; ca 53 air mi NNW of Flagstaff.
Canyon going off rim of plateau. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Coconino Plateau: off Coconino Rim or Forest Road 310 ca 1.5 air mi S of Coconino Rim just E of Woodbridge Tank, ca 20 air mi ESE of Tusayan; ca 48 air mi N of Flagstaff.
Sandy ponderosa pine forest with pinyon, juniper, and oak, with shallow wash. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Upper Basin on Coconino Plateau at Wagoner Tank in upper Lee Canyon along Forest Road 307, ca 15.5 air mi E of Tusayan; ca 52.5 air mi NNW of Flagstaff.
Rocky slope and shallow wash with pinyon. Phenology: flowering & fruiting.

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: Public Fishing Access Site along the east side of the Big Horn River, just NE of Lucerne, 7 mi N of Thermopolis.
T44N R94W S28
Weedy, riparian area in sandy soil with Bromus tectorum, Malcolmia africana, Sporobolus airoides, and Centaurea repens. Phenology: flowering & fruiting.
Accession: RM 818720, Barcode: RM0024411

U.S.A., Montana, Park County: In Livingston along railroad tracks just N of Park Street.
T2S R9E S13
Disturbed railroad right-of-way and adjacent area with Bromus tectorum and Kochia scoparia. Phenology: flowering & fruiting.
Accession: RM 818695, Barcode: RM0019931

U.S.A., Wyoming, Park County: Bighorn Basin: in Cody at north end of 14th Street.
Disturbed sagebrush-grassland and roadside with Bouteloua gracilis, Kochia scoparia, Sporobolus cryptandrus, and Sisymbrium altissimum. Phenology: flowering & fruiting.
Accession: RM 819811, Barcode: RM0024285

U.S.A., Wyoming, Park County: Bighorn Basin: Cody city reservoir S of town.
T52N R101W S6
Disturbed areas along paths adjacent to reservoir with Kochia scoparia, Amaranthus retroflexus, Convolvulus arvensis, and Euphorbia glyptosperma. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Coconino National Forest: Painted Desert Vista Picnic Area on Forest Road 545 at the south edge of Strawberry Crater Wilderness, ca 18 air mi NE of Flagstaff.
Pinyon/juniper woodland on cinders. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Coconino National Forest: frontage road (old U.S. Hwy 66) along I-40 on Bellemont Flat, just W of Bellemont Exit and just N of Camp Navajo Army Depot, ca 10.5 air mi WNW of Flagstaff.
Cinder roadbank and pavement edge. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Sitgreaves National Forest: Mogollon Plateau: Chevelon Canyon Campground and Chevelon Crossing on Forest Road 504, ca 15.5 air mi NW of Heber; ca 30.5 air mi S of Winslow.
Juniper woodland on sandy slope. Phenology: flowering.
with James F. Fowler, Brian Reif

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Mogollon Plateau: Wildcat Canyon above Forest Road 504, ca 10.5 air mi NW of Heber; ca 25.5 air mi S of Winslow.
Canyon bottom, walls, and slopes on limestone. Phenology: flowering & fruiting.
with James F. Fowler, Brian Reif

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Mogollon Plateau: above Daze Canyon on Forest Road 504, ca 10 air mi NW of Heber; ca 26 air mi S of Winslow.
Disturbed area around limestone quarry. Phenology: flowering.
with James F. Fowler, Brian Reif

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: Colo Hwy 149 N, ca 2.5 air mi N of South Fork.
Along highway. Phenology: flowering & fruiting.

U.S.A., Colorado, Archuleta County: [location and coordinates withheld]
Pinyon juniper ecosystem with rock canyons. Phenology: fruiting.
with Cindy Villa

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: Rio Grande National Forest: ca 1/3 mi on Lone Tree Gulch Road, ca 10 air mi NW of Saguache.
Pinus ponderosa woodland on west-facing slope with rocky outcrops into xeric meadow. Phenology: flowering & fruiting.

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: on County Road 41G in Coolbroth Canyon.
Pinyon/juniper woodland with rock outcrops and along roadside. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Coconino National Forest: at the intersection of U.S. Hwy 89 and Forest Road 418-420 just E of the base of San Francisco Mountain, ca 12.5 air mi NNE of Flagstaff.
Roadside, barrow pit, and adjacent ponderosa pine savana. Phenology: flowering & fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: along Forest Road 537 at and just below junction with Forest Road 756 along a tributary of Spring Creek, ca 10 air mi NE of Ignacio; ca 7 air mi ESE of Bayfield.
Roadside through Gambels oak thickets with scattered pinyon and Rocky Mountain juniper. Phenology: flowering & fruiting.
Annotated by Jeanette Flaig.

U.S.A., Arizona, Coconino County: Coconino National Forest: at the intersection of Ariz Hwy 87 and Forest Road 300 in the vicinity of Baker Lake, ca 1 air mi N of the Mogollon Rim, ca 53 air mi SSE of Flagstaff.
Highway right-of-way and adjacent ponderosa pine forest with oak. 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: fruiting.
Annotated by B. E. Nelson.

U.S.A., Arizona, Coconino County: Coconino National Forest: cattle loading pens across from Limestone Ranch turnoff (Forest Road 137).
Disturbed area. Phenology: flowering & fruiting.

U.S.A., Arizona, Coconino County: Coconino National Forest: roadside pullout on I-17, ca 9 air mi SE of Sedona.
Phenology: fruiting.
Annotated by B. E. Nelson.

U.S.A., Arizona, Coconino County: Coconino National Forest: Transfer Station at Willard Interchange on I-17.
Roadsides and disturbed areas around station. Phenology: fruiting.

U.S.A., Arizona, Gila County: Tonto National Forest: ca 3 air mi W of Mogollon Rim Visitor Center at Two Sixty Trailhead.
Mixed conifer with herbaceous understory. Phenology: fruiting.

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Black Canyon along Forest Road 86, ca 3 air mi SW of Heber.
Limestone outcrop with sandy soil below. Phenology: fruiting.

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Black Canyon along Forest Road 86, ca 5.5 air mi SW of Heber.
Stream bottom. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Tusayan National Forest.
T24N R3E
In woodland community. Phenology: vegetative only.
Accession: USFS 428113

U.S.A., Arizona, Gila County: Tonto National Forest: E of Cherry Creek.
T5N R15E S26
Singly and scatteringly abundant.
Accession: RM 428115

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Haystack Mountains, ca 9.5 air mi NE of Rawlins; ca 5 air mi SE of Dry Lake.
Greasewood/sagebrush flat with fine clay soil. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., New Mexico, Colfax County: NM Hwy 72, 26 road mi E of I-25 (milepost 26).
Oak and ponderosa pine woodland and roadside. Phenology: flowering.

U.S.A., New Mexico, Union County: NM Hwy 325, ca 5 road mi NNE of Capulin.
Pinyon-juniper woodland and grassland. Phenology: fruiting.

U.S.A., New Mexico, Colfax County: I-25 at interchange 455, ca 1 air mi NNW of Raton.
Juniper-oak road cuts. Phenology: flowering.

U.S.A., New Mexico, Sierra County: Datil National Forest.
Weed community on valley land with weeds in sandy loam soil on southern slope; very scattered distribution; scattered abundance. Phenology: fruiting.
Benton S. Rodgers, 5. 8//1920.
Accession: USFS 428108

U.S.A., New Mexico, Grant County: Mangas Springs, 18 mi NW of Silver City.
Phenology: fruiting.
Accession: RM 55888

U.S.A., New Mexico, Socorro County: Near Magdalena.
Phenology: fruiting.
Accession: RM 604869

U.S.A., Arizona, Coconino County: Kaibab National Forest: Pleasant Valley.
Slope 5% west; deep clay loam soil; grass or meadow habitat, with Aster, bluegrass, and Festuca. Scattering. Phenology: fruiting.
Annotated by Glenn Rink on 6//2014. Primary branches > 3 cm, not spikelet-bearing to base.
Accession: USFS 428056

U.S.A., Colorado, Larimer County: Riparian Plants of the Cache la Poudre River: Picnic Rock Day Area, ca 2 mi W of Teds Place on Colo Hwy 14.
T8N R70W S9
River terrace.

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 & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 20 mi SSE of Hermosa, next to the Cheyenne River.
In sandy soil on river banks. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 17 air mi ENE of Hermosa and 1.5 mi E of County Road 121.
On steep Juniperus scopulorum rock slopes. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 22 air mi SE of Hermosa on the Cheyenne River.
On west bank of river in sand soil. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 8.5 air mi SE of Hermosa in Red Shirt Creek.
In drainage of creek and steep slopes of drainage; soils are rock substrate with clayey silt. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: side drainage of Moss Agate Creek, ca 5 air mi NW of Edgemont.
Ungrazed drainage; soils on side slopes are gravelly, rocky, and loose; soils in bottom are deep, moist loam. Phenology: flowering & fruiting.

U.S.A., Arizona, Greenlee County: Apache National Forest: Honeymoon Ranger Station.
T2N R28E S31
Woodland community in rocky soil; distributed on rocky hillsides. Phenology: fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 1 air mi NW of Redshirt and ca 2 air mi due W of County Road 40, Cheyenne River.
At the shores of river, soils are gravel and sand. Phenology: flowering & fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 9 air mi SW of Kadoka.
In prairie uplands with clay soil, old revegetated badlands floodplain. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 2.5 air mi SSW of Kadoka.
In vegetated clay soils of badlands floodplain. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 9.5 air mi NW of Edgemont.
In rolling grassland with sandy soils. Phenology: flowering.

U.S.A., New Mexico, Bernalillo County: Cibola (Manzano) National Forest: Cedro Ranger Station pasture.
T10N R5E S23
Grass community with scattered gramma in shallow, rocky, gravel soil on a rolling east aspect; scattered distribution; spotted abundance. Phenology: fruiting.

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., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: below south end of Mogote Ridge between Laguna de las Ranas and Forest Road 137, ca 8.5 air mi SE of Canjilon; ca 25 air mi SE of Tierra Amarilla.
Roadside. Phenology: fruiting.

U.S.A., New Mexico, no county County:
George R. Vasey, s.n.. //1881.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Canjilon Creek and gypsum cliffs, E of Echo Ampitheater recreational site on U.S. Hwy 84, ca 14 air mi NW of Abiquiu.
Todilto gypsum. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Jicarilla Ranger District: Arroyo La Jara near west forest boundary, just S of U.S. Hwy 64, WSW of Dulce.
Arroyo floodplain and flats with Artemisia tridentata and chamisa. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: along the old Chili Line Railroad Grade and Forest Road 557 just SE of Taos Junction, ca 9.5 air mi ENE of Ojo Caliente.
Pinyon forest with sagebrush on sandy to sandy clay soil. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Penabetoso Peaks and vicinity on the south peak and surrounding area, ca 16 air mi N of Tres Piedras.
Plains of winterfat, blue grama, and scattered low rabbitbrush with basalt gravel to boulders. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: La Segita Peaks S and SSE of Wissmath Craters, ca 11 air mi N of Tres Piedras.
Pinyon/juniper/Douglas fir forest with ponderosa pine and understory of Holodiscus and oak on upper slopes and black sagebrush at the base. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: La Segita Peaks S and SSE of Wissmath Craters, ca 10.5 air mi N of Tres Piedras.
Pinyon/juniper forest on red volcanic knoll above abandoned cinder-gravel quarry. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: on Forest Road 556 TG S to the top of the rim, ca 2 air mi SSW of Cerro Azul, ca 7.5 air mi SE of Ojo Caliente.
Pinyon/juniper woodland on sandy to sandy-clay shallow slopes and flats. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: along Forest Road 558, ca 2 air mi E of Mesa Vibora, ca 5 air mi E of Ojo Caliente.
Sandy pinyon/juniper woodland. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: along a continuation of Forest Road 556 at the Gravel BM and S, ca 1 air mi NE of Gavilan; ca 3 air mi SSE of Ojo Caliente.
Sandy to sandy-clay flats. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: along Forest Road 551 from just E to ca 0.4 mi E of U.S. Hwy 285, ca 9 air mi SSE of Tres Piedras.
Pinyon/juniper forest. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Juan Jose Lobato Grant: just N of Abiquiu Reservoir from roadside table along U.S. Hwy 84, N along wash, ca 2 air mi SE of Ghost Ranch Presbyterian Center and ca 11 air mi S of Canjilon.
Rocky slopes above wash. Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Juan Jose Lobato Grant: offshoot of Forest Road 23, ca 3/4 air mi E of west Forest Boundary on east side of Abiquiu Reservoir, ca 5 air mi NW of Abiquiu.
Pinyon/juniper woodland with large openings of Stipa comata and Gutierrezia sarothrae. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Juan Jose Lobato Grant: Forest Road 23, ca 5.5 air mi N of U.S. Hwy 84 and Rio Chama, ca 2 air mi E of west Forest Boundary, ca 6 air mi NNW of Abiquiu.
Large, open mesa top with Lycium pallidum and Opuntia imbricata. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Juan Jose Lobato Grant: Arroyo del Cobre, ca 1 3/4 air mi W of Abiquiu, N of Abiquiu Elementary School, up Arroyo past Cerrito de la Ventana.
Major wash with tamarisk, Chrysothamnus nauseosus, Sporobolus species, and Bouteloua species on San Rafael and Chinle formation sandstones. Phenology: flowering & fruiting.

U.S.A., New Mexico, no county County: Gila National Forest.
In shallow clay soil on west aspect. Phenology: vegetative only.
Henry Woodrow, M.P. 2. 8//1920.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: San Cristobal Canyon Trailhead and along trail in canyon, ca 3 air mi NE of San Cristobal; ca 2 air mi SSE of Lama.
Old road bed near creek and riparian area lined with Alnus tenuifolia. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: southern border of 1996 Hondo Fire N of San Cristobal Canyon, just NE of San Cristobal Canyon Trailhead, ca 3 air mi NE of San Cristobal; ca 2 air mi SE of Lama.
Along edge of burned area of pinyon/juniper woodland and north-facing slope with Quercus gambelii and Bromus carinatus. Phenology: buds.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Canada de los Comanches ca 1.5 air mi SE of Petaca Mesa, ca 2.5 air mi NE of Servilleta Plaza and ca 8 air mi NW of Taos Junction.
Pinyon/juniper woodland with large openings of Artemisia tridentata in canyon bottom and drainage areas; sandy soil and sedimentary rock outcrops. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Canada de los Comanches ca 1.5 air mi SE of Petaca Mesa, ca 2.5 air mi NE of Servilleta Plaza and ca 8 air mi NW of Taos Junction.
Pinyon/juniper woodland with large openings of Artemisia tridentata in canyon bottom and drainage areas; sandy soil and sedimentary rock outcrops. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Canada de los Comanches along Taos County line, ca 2 air mi SE of Servilleta Plaza and ca 6 air mi NW of Taos Junction.
Sandy soils with Gutierrezia sarothrae, Chrysothamnus nauseous, Heterotheca villosa, Bouteloua gracilis, and Sporobolus species. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Canyon de los Alamos accessed from NM Hwy 519 and Forest Road 222 near Salt Lick Spring, ca 2 air mi NE of La Madera; ca 2.5 air mi SE of Anacones.
Pull out next to highway through pinyon/juniper woodland. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Picuris Pueblo Indian Reservation: southwest corner of Reservation, ca 0.5 air mi W of Chamisal in thinning treatment area.
Moist area where arroyo runs into culvert under road; disturbed area near road. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Gila National Forest: Bear Canyon.
In bottomland community. Phenology: vegetative only.
Hermann W. Krauch, 18. 8/7/1912.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Francisco Montes Vigil Grant: Forest Road 710 just E of NM Hwy 76, ca 1 3/4 air mi SSW of Ojo Sarco; ca 2.5 air mi NNE of Truchas.
Recovering burn area formerly ponderosa pine forest with Juniperus scopulorum; current regrowth of Quercus gambelii, Elymus species, and Muhlenbergia montanus. Phenology: buds.

U.S.A., New Mexico, Catron County: Datil National Forest: along Negrito trail on Negrito Creek.
Grass, weed, and browse community in coarse gravel soil on a north aspect; not well distributed; not abundant. Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: ca 0.2 air mi W of Ojo Caliente Mineral Springs Resort and ca 0.5 air mi NNW of Bureau of Land Management Posiwinge Archealogical Site.
Pinyon/juniper woodland with Hilaria jamesii and Aristida purpurea; sandy, dry wash lined with Fallugia paradoxa. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Red Wash Canyon on north side of U.S. Hwy 84, ca 4 air mi WNW of Abiquiu.
Pinyon/juniper woodland with Opuntia phaeacantha; sandy, dry wash lined with Fallugia paradoxa; Chinle formation and Entrada sandstones. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: near dead end of Forest Road 139, ca 4.5 air mi N of Abiquiu Reservoir, ca 9 air mi SSE of Canjilon, ca 3 air mi NE of Ghost Ranch Presbyterian Retreat Center.
Just below sandstone canyon rim. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Pine Canyon 2005 burn area on Forest Road 137, ca 5 air mi W of El Rito.
Recently burned pinyon/juniper woodland. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Cimarron Range: Colin Neblett State Wildlife Area: along Maverick Creek from U.S. Hwy 64, ca 0.5 air mi NE of Gravel Pit Lakes, ca 7 air mi E of Eagle Nest, ca 1.5 air mi W of Ute Park at area boundary.
Pinyon/juniper woodland with mixed conifers in drainage areas; old roads with Melilotus officinalis. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: ca 8 air mi NW of Arroyo Hondo on BLM road to Cerro Montoso, ca 1 air mi E of U.S. Hwy 64.
Drainage from juniper down to road. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: [location and coordinates withheld]
Canyon slopes and bottom. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Cerro del Aire, west slope.
Pinyon/juniper grasslands. 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 & fruiting.

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

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: La Segita Peaks, northwest peak.
Pinyon/juniper covered slopes with openings, volcanic rock outcrops. Phenology: buds.

U.S.A., New Mexico, Taos County: [location and coordinates withheld]
Pinyon/juniper slopes. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Forest Road 551, 1 mi E of U.S. Hwy 285.
Pinyon/juniper woodland. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Cerrito Dormilon.
Volcanic outcrop. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: NM Hwy 518 along Rio Grande del Rancho, 0.5 mi S of Forest Service boundary.
Roadside and creek margin. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: along Rio Grande del Rancho 2 mi S of Forest Service boundary on NM Hwy 518.
Roadside and stream margin. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sierra County: Datil National Forest.
Grass community with rye-grass, lamb's quarter, and other weeds in sandy soil on flat slope along arroyo. Phenology: vegetative only.

U.S.A., New Mexico, Bernalillo County: Manzano National Forest: Jaral Ranger Station.
Grass community in gravel soil on a west aspect; 25% of stand on mountain. Phenology: fruiting.
with Clyde L. Warnock

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: 3 mi W of headquarters, pasture 2.
Sporobolus-grama community with black grama and aristidas in sandy soil on a level aspect; distributed with panicle-grama type; rare abundance. Phenology: fruiting.

U.S.A., Wyoming, Park County: Bighorn Basin: along County Road 7RP near Clarks Fork Yellowstone River, ca 23.5 air mi NNW of Cody.
Sagebrush in sandy soil with cobbles. Phenology: flowering & fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: along East Fork Nowater Creek, ca 3 air mi W of Joe Henry Fork, ca 11.5 air mi SE of Worland.
Silt/sand bars, banks along stream channel, and adjacent sandy flats with scattered cottonwoods. Phenology: flowering & fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: along County Road 86, ca 14.5 air mi NNE of Thermopolis.
Sagebrush on sandy soil. Phenology: flowering & fruiting.

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: 1.5 mi NW of Headquarters Ranch in pasture #2.
Grama community with black grama, panicled grass, and weeds in sandy soil on a level aspect; distributed widely; fair abundance. Phenology: fruiting.
with Ashbel F. Hough

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: 1.5 mi NW of Headquarters Ranch in pasture #2.
Grama ridge community with black grama, panicled grass, and weeds in sandy soil on a level aspect; widely distributed; great abundance. Phenology: fruiting.
with Ashbel F. Hough

U.S.A., Arizona, Yavapai County: Coconino National Forest: Hance Spring: Verde Strip.
Grass community with purple rasp-grass, side-oats grama, and feathergrass in limestone and gravelly clay adobe soil on a moderate south aspect; general distribution; very abundant. Phenology: vegetative only.

U.S.A., Arizona, Yavapai County: Coconino National Forest: Secret Mountain.
Yellow pine community with panic grass, grama, feathergrass, and sacaton in shallow, rocky, sandy loam soil on moderate south aspect; limited distribution; not very abundant. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Ca 8 mi N of Ash Fork.
In an open stand of Juiperus osteosperma community; common here. Phenology: flowering.
with Charlotte G. Reeder

U.S.A., Arizona, Coconino County: Ca 13 mi SW of Marble Canyon on U.S. Hwy A89, at base of Vermillion Cliffs.
Associated with S. flexuosus and S. contractus. Phenology: flowering.
with Charlotte G. Reeder

U.S.A., New Mexico, Catron County: Datil National Forest: Swap pasture.
T6S R21W S1
Grass and weed community in fertile loam soil on a level aspect; distributed in roads and meadows; common abundance. Phenology: fruiting.

U.S.A., Wyoming, Teton County: Grand Teton National Park: south side of road between Gros Ventre Junction and Sagebrush Drive, ca 1/4 mi W of Gros Ventre Junction, ca 6 air mi NW of Jackson.
Sagebrush-steppe with Artemisia tridentata, Poa pratensis, Grindelia squarrosa. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Wyoming, Teton County: Grand Teton National Park: south side of road between Gros Ventre Junction and Sagebrush Drive, ca 1/4 mi W of Gros Ventre Junction, ca 6 air mi NW of Jackson.
Sagebrush-steppe with Artemisia tridentata, Poa pratensis, Grindelia squarrosa. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Willow Wash.
Associated with grama, side-oats, bluestem, Texas timothy. Phenology: fruiting.
Kenner C. Kartchner, 62. 9/11/1914.

U.S.A., Arizona, Mohave County: Whitmore Canyon: just N of the Bar 10 Ranch.
In mixed shrub community in gravelly to sandy soil. Phenology: fruiting.
with N. Duane Atwood

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: pasture number 2, near quadrant H3P.
Grass community with black grama and red 3-awn grasses in loose sandy loam soil on a level aspect. Phenology: vegetative only.

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: pasture number 2, near quadrant H3P.
Grass community with black grama and red 3-awn in loose sandy laom soil on a level aspect; distributed over mesa; fairly abundant.

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: along south side of U.S. Hwy 50, ca 7 road mi E of intersection of U.S. Hwy 50 and Colo Hwy 114; ca 7.6 air mi SW of Lookout Mountain; ca 14.2 air mi ESE of Gunnison.
Roadside. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Arizona, Pima County: Coronado National Forest: Oracle Ranger Station pasture.
Grass community with slender and side-oats grama in decomposed granite soil on north aspect; widely distributed; scattered abundance. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Coconino National Forest: Tonto Addition.
Woodland or open browse community with curly mesquite, snake weed, and various annual grasses in dry, rocky soil; quite common abundance. Coconino/Yavapai counties. Phenology: vegetative only.

U.S.A., New Mexico, Catron County: Datil National Forest: Lower Largo.
T6S R16W S7
Cottonwood community in damp, rich soil; distributed on similar soil sites on border between woodland and pine; not common in abundance.

U.S.A., New Mexico, Catron County: Datil National Forest: Castle Rock vicinity.
T2S R16W S6
In dry, steep, white rock slide soil; distributed under cliff and in one instance at bottom of small dry arroyo; not common in abundance. Phenology: fruiting.

U.S.A., New Mexico, Catron County: Datil National Forest: Largo Creek.
Sand bar community. Phenology: vegetative only.

U.S.A., New Mexico, Torrance County: Manzano National Forest: near White Well number 2.
Grass community with Gyp grass and hairy gramma in sandy "gyp" soil on a gentle south aspect; distributed in swales, slopes, and benches; common abundance. Phenology: vegetative only.

U.S.A., New Mexico, Torrance County: Manzano National Forest: near White Well number 4.
Grass community with blue gramma in deep alluvial sand on a level aspect; distributed on flats; often dominant abundance. Phenology: vegetative only.

U.S.A., New Mexico, Bernalillo County: Albuquerque.
T10N R3E

U.S.A., New Mexico, Bernalillo County: Albuquerque: Sandia Mountains.
T11N R5E

U.S.A., Arizona, Maricopa County: 14.4 mi S of Sunflower; along Hwy 87.

U.S.A., Wyoming, Park County: Wetlands and Adjacent Areas: Clarks Fork Yellowstone River, ca 24 air mi NNW of Cody.
Dry sandy hillside. Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Roosevelt National Forest and Vicinity: Front Range: Pfister Draw State Wildlife Management Area: off Laramie River Road (County Road 103), ca 50 air mi NW of Fort Collins.
Flat Artemisia rangeland, with some dry red sandstone and white calcareous soils and marshy in draw bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Along the Platte River at Guernsey.
42.2659° N, 104.7539° W; NAD 83, uncertainty 0.5 mi., Digital Map
On sand bars. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Near Pine Bluffs.
41.1745° N, 104.0627° W; NAD 83, uncertainty 1.5 mi., Digital Map
Dry sandy soil on prairie. Phenology: flowering & fruiting.

U.S.A., Arizona, Gila County: Tonto National Forest: Payson Ranger Station pasture.
Grass-browse community with black grama, side oats grama, and oak in disintegrated granite soil on a gentle north aspect; distributed widely; not abundant. Phenology: fruiting.

U.S.A., Wyoming, Hot Springs County: Near Kirby.
43.8034° N, 108.1827° W; NAD 83, uncertainty 2 mi., Digital Map
Dry sagebrush hills, gravelly soil. Phenology: flowering.
with Marjorie W. Porter

Sporobolus cryptandrus ()
U.S.A., Arizona, no county County: Sitgreaves National Forest.
Annotated by W. A. Dayton & A.S.H..

U.S.A., Wyoming, Albany County: 2 mi E of Laramie.
41.3067° N, 105.5476° W; NAD 83, uncertainty 1 mi., Digital Map
Sandy prairie. Phenology: flowering & fruiting.
with Marjorie W. Porter

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: Salitral Creek and spring, 4.5 air mi WNW of Coyote, where Forest Road 148 crosses creek. Collection within 1/4 mi up and down creek and at nearby spring.
Riparian and sandy banks. Significant salt deposits. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 4 at Soda Dam, 1.7 air mi N of Jemez Springs, S 0.5 mi to bridge .
Travertine deposits and edge of hot spring pools. Phenology: flowering.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Rio Frijoles Trail 154 just E of Santo Domingo de Cundiyo Land Grant, 8 air mi SE of Chimayo. SE in canyon along trail for 0.2 air mi from E edge of land grant.
Riparian of river, and meadows, in canyon bottom with mixed conifer slopes. Canyon tightening upstream with encroachment of granitic cliffs. Phenology: flowering & fruiting.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Santa Fe Municipal Watershed, 3 air mi ENE of Santa Fe, in vicinity of Randall Davey Audubon Center. E on road to 0.2 air mi.
Roadside through pinyon-juniper woodland along contour, and just S of the river. Wet roadside culverts. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: 3 road mi NNE of Ponderosa.
Roadside, streamside. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: drainage and benchland to Window Rock Trick Tank.
Sandy stream bottom and slopes. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: Canyon Madera, first mile from road.
Sandy slopes and stream bottom. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: Forest Road 144, Los Cerros area, 11 air mi W of Espanola.
Roadside and ponderosa pine forest. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Arroyo Gavilan, 2.3 road mi S of Taos County on U.S. Hwy 285.
Sandy drainage. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: 16 air mi NNE of Espanola to 0.5 road mi S on U.S. Hwy 285.
Roadside. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Jemez Mountains: 16 air mi NNE of Espanola to 0.5 road mi S on U.S. Hwy 285.
Roadside. Phenology: fruiting.

U.S.A., New Mexico, Lincoln County: Lincoln National Forest: Ruidoso District, near Ranger Station on river.
Scattering on level silty loam with Helianthus. Lincoln/Otero counties Phenology: spores.
Robert S. Campbell, 6. 8/20/1928.
with Vance A. Thomas

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Battleship Rock Trail 137, 5 air mi NNE of Jemez Springs. N35.8271 W106.6408 at prominent switchback SE 0.4 air mi on trail to N35.8228 W106.6363.
Ponderosa pine forest, with juniper, oak, and pinyon pine below, ascending west-facing canyon slope over scattered volcanic boulders. Phenology: flowering.

U.S.A., New Mexico, Los Alamos County: [location and coordinates withheld]
Roadside and canyon bottom on tuft/volcanics in ponderosa pine forest. Phenology: flowering.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Anton Chico Grant: along Arroyo Leguino just below the northwest end of Mesita de los Ladrones, ca 7.5-8 air mi E of Villanueva; ca 21 air mi S of Las Vegas.
Sandy flats along the arroyo channel. Phenology: flowering.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Anton Chico Grant: 5 air mi ENE of Villanueva, from Forest Road 45 S to Pecos River.
Open mesa, matchweed dominant, with scattered candelabra Opuntia and juniper on fine sediment. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: 0.5 air mi S of Pablo Creek at forest boundary, 12 air mi WSW of Las Vegas.
Gentle north-facing ponderosa pine slope with scattered Gambels oak and grass below. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Jemez Mountains: Caja del Rio Plateau: Caja del Rio Canyon from County Road 77 (Buckman Road), ca 4 air mi ESE of White Rock. Within 0.4 air mi of N35.806 W106.142, up or down canyon.
Narrow dry wash with juniper and tamarisk through sheer cliffs of columnarly-jointed volcanic rock. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Ca25.5 air mi SW of Green River and 17 air mi NE of Mckinnon.
Sandy soil in barren sagebrush with Tetradymia canescens, Eriogonum cernum, Allium, Astragalus and Bromus tectorum. Phenology: flowering & fruiting.

U.S.A., New Mexico, Catron County: Apache National Forest: Jewett, S of Fox Springs.
Yellow pine community in sandy loam soil on a south aspect; distributed on dry aspects; abundance scattered. Phenology: vegetative only.

U.S.A., Wyoming, Laramie County: Pine Bluffs.
41.1733° N, 104.0808° W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!
Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Fairbanks.
Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Platte River.
Dry ground. Phenology: flowering & fruiting.

U.S.A., Arizona, Santa Cruz County: Coronado National Forest.
T24S R13E S6
Grass and blue and mesa grama community in dry rocky adobe soil on moderate and open aspect; not very abundant; well distributed. Phenology: flowering.

U.S.A., Wyoming, Platte County: Platte Canon near Badger.
River bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Guernsey.
Sandy hillsides. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Wheatland.
Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: 10 mi S of Woods Landing, Boswell Creek Road , above Johnson Creek.
Among rocks above creek. Common. Phenology: flowering & fruiting.
with Ron Hartman

U.S.A., Wyoming, Platte County: Camp Guernsey: ca 0.2 km SW of Guernsey Reservoir, near Stokes Siding.
Elev. 1370 m.
Disturbed site within ponderosa pine/juniper woodland on gentle to moderate slopes of gravelly loamy sand with Pinus ponderosa, Juniperus scopulorum, Carduus nutans, Ambrosia psilostachya, and Bromus tectorum. Phenology: fruiting.
with D. Hazlett

U.S.A., Wyoming, Platte County: Camp Guernsey: ca 0.1 km E of North Platte River, ca 0.4 km N of U.S. Hwy 26, and ca 1.6 km S of Hartville Canyon.
Elev. 1330 m.
Disturbed mixed grass prairie with level to steep slopes of gravelly loamy sand with Opuntia polyacantha, Rhus trilobata, Thelesperma megapotamicum, Bouteloua gracilis, and Bromus tectorum. Phenology: flowering & fruiting.
with D. Hazlett, M. Arnett

U.S.A., Wyoming, Campbell County: Ca 70 air km E of Rt 59.
Elev. 1524 m.
Uncommon in oil well. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Platte County: Sybille Creek.

U.S.A., Wyoming, Laramie County: Horse Creek.
Annotated by Robert L. Lang in 1939.

U.S.A., Wyoming, Big Horn County: Sykes Mountain.
Sandstone uplift to clay flat. Phenology: flowering & fruiting.

U.S.A., Wyoming, Big Horn County: 1.5 mi S of Kane.
Riparian bottom to clay flat in mostly Salix cover class. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Granger.
In alkali soil. Phenology: flowering & fruiting.
with E. N. Wilcox

U.S.A., Wyoming, Park County: Absaroka Mountains: along U.S. Hwy 14, ca 7 mi W of Cody.
On Road shoulder, with weedy associates. Phenology: flowering & fruiting.

U.S.A., Arizona, Cochise County: border AZ-NM: upper San Simon Valley near Rodeo, NM: ca 6 mi E of Portal Peak, AZ.
Generally fine textured, non-gravelly, valley bottom soils of almost level terrain. Cochise Co., AZ/Hidalgo Co., NM Phenology: fruiting.

U.S.A., Wyoming, Park County: Absaroka Mountains ; along U.S. Hwy 14, 16 and 20 ca 2 mi W of Buffalo Bill Dam.
On road shoulder. Phenology: flowering & fruiting.

U.S.A., New Mexico, Socorro County: Atomic Bomb Test Site: Transect 12, 1200 ft from crater fence.
Phenology: vegetative only.
with D. B. Dunn and Spellman

U.S.A., New Mexico, Socorro County: Atomic Bomb Test Site: Transect 12, 1200 ft from crater fence.
with D. B. Dunn and Spellman

U.S.A., Wyoming, Laramie County: High Plains Grassland Research Station: 5 air mi NW Cheyenne.
Sandstone outcrop. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: City of Laramie.
Football Field, cultivated graminea. Phenology: flowering & fruiting.

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, Carbon County: Haystack Mountains, N of Sinclair.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Indian Hollow.
Woodland-browse community with cliffrose in rocky soil on a 20 degree west aspect. Phenology: vegetative only.

U.S.A., Wyoming, Washakie County: W of Worland, on the lower part of the Fifteenmile drainage area.
Sandy soil, blue grama type vegetation. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: 2 mi N of Wheatland.
42.0897° N, 104.9517° W; NAD 83, uncertainty 0.5 mi., Digital Map
Scattered clumps on the roadside embankment. Phenology: flowering & fruiting.
with Charlotte G. Reeder

U.S.A., New Mexico, Lincoln County: Lincoln National Forest: Gallinas Division.

U.S.A., Wyoming, Sheridan County: Big Horn Range: Tongue River Canyon, ca 3.75 mi SW of Dayton and 2.5 mi N of Steamboat Point.
Sandy area along trail. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Wind River Basin: east shore of Boysen Reservoir across inlet from Poison Creek Picnic Area.
Sandy shore of reservoir. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: In Upper Cabin Creek above the Greys River Valley, east slope of Salt River Range.
Wet area, shaded slope: Picea engelmannii/ Abies lasiocarpa asssociation. Phenology: flowering & fruiting.
with John S. Shultz
Accession: USFS 404308, Barcode: RM0202601

U.S.A., Wyoming, Natrona County: CY Horse Ranch.
Low, sandy swale. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sierra County: Gila National Forest: South Percha Creek bottom.
Weed community with gramas, Bromus Lycurus, June grass, Geranium, Senecio, and browse in clay loam soil on a level aspect; distributed in upper woodland and yellow pine; scattered abundance. Phenology: fruiting.
William R. Chapline, 644. 8/21/1916.

U.S.A., New Mexico, Eddy County: Lincoln National Forest: Guadalupe Mountains: Carson Seep Ranger Station pasture.
Grass community with weeds, browse, side-oats, and grama in shallow clay loam soil on a 10 degree E aspect; distributed in Ponderosa pine; scattered abundance. Phenology: fruiting.
William R. Chapline, 708. 9/28/1916.

U.S.A., New Mexico, Eddy County: Lincoln National Forest: Guadalupe Mountains: Carson Seep Ranger Station pasture.
Grass community with weeds, browse, side-oats grama, adropogons, muhlenbergias, and hairy grama in shallow clay loam soil on a 10 degree E aspect; distributed in yellow pine; scattered abundance. Phenology: fruiting.
William R. Chapline, 721. 9/28/1916.

U.S.A., Wyoming, Goshen County: Southeastern Plains: Wyoming Game and Fish Department Rawhide Unit: on north bank of North Platte River E of Lingle.
Salix exigua community with sapling Populus deltoides and understory of Sporobolus cryptandrus and Phalaris arundinacea on sandy floodplain. Phenology: flowering & fruiting.
with Steve Kettler

U.S.A., Wyoming, Johnson County: Powder River Basin: North Fork Crazy Woman Creek, E of Buffalo in vicinity of Tipperary Road.
Moderately dense Elymus smithii community on terrace adjacent to stream channel. Soil gravelly-cobbley alluvium. Phenology: flowering & fruiting.
with Steve Kettler

U.S.A., Arizona, Cochise County: Chiricahua Mountains: Mouth of Pinery Canyon and adjacent foothills, 4 mi below junction of North and South forks.
T17S R29E S2

U.S.A., Arizona, Cochise County: Near Douglas: Silver Creek.

U.S.A., Wyoming, Campbell County: Black Thunder Strip Mining Area: North Prong of Thunder and Little Thunder creeks.
Stream flood plain; with saltgrass, western wheatgrass, and blue grama; loamy, bare, clayey soil (Absted and Bone Series). Phenology: flowering & fruiting.
with D. W. Sabinske

U.S.A., Wyoming, Fremont County: Bonneville Road west of Lysite.

U.S.A., Wyoming, Niobrara County: Hat Creek Breaks.
Sandy roadside with Cenchrus and Andropogon. Phenology: flowering & fruiting.

U.S.A., Wyoming, Johnson County:
T44N R87W S5 SW1/4 of SW1/4 of SW1/4
pRairie with Bromus, Schedonnardus. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: 3 mi NE of Torrington.
Sandy wash with Croton, Euphorbia. Phenology: flowering & fruiting.

U.S.A., Wyoming, Uinta County: Lonetree.
Roadside with Elymus and Bromus.

U.S.A., Wyoming, Albany County: 2.5 mi ENE of Esterbrook.
Edgeof pavement with Artemisia frigida, Stipa comata. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Wyoming Game and Fish Department's Rawhide unit along the North Platte River, ca 2.3 air mi S of Lingle, ca 8.5 air mi WNW of Torrington.
Wet sandy areas. Phenology: flowering & fruiting.
Steve Kilpatrick, RH153. 7/20/1982.
with J. L. Robinson

U.S.A., Wyoming, Goshen County: Wyoming Game and Fish Departments Rawhide Unit along the North Platte River, ca 2 air mi S of Lingle; ca 8.8 air mi WNW of Torrington.
Cottonwood woodland in riparian habitat. Phenology: flowering & fruiting.
Steve Kilpatrick, RH210. 7/7/1983.

U.S.A., Wyoming, Goshen County: Wyoming Game and Fish Departments Rawhide Unit along the North Platte River, ca 3.3 air mi SE of Lingle; ca 7 air mi WNW of Torrington.
Gravelly soil in riparian habitat. Phenology: flowering & fruiting.
Steve Kilpatrick, RH231. 8/26/1983.

U.S.A., Wyoming, Goshen County: Wyoming Fish and Game Department's Rawhide Unit along the North Platte River, ca 3.3 air mi SE of Lingle; ca 6.5 air mi WNW of Torrington.
Ditch bank. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Wyoming Game and Fish Department's Rawhide unit along the North Platte River, ca 3.3 air mi SE of Lingle, ca 6.8 air mi WNW of Torrington.
Phenology: flowering.
with J. L. Robinson

U.S.A., Wyoming, Natrona County: North Platte River Valley: west side of North Platte River at Alcova, between Alcova Reservoir and Gray Reef Reservoir, ca 0.5 mi SE of Wyo Hwy 220; ca 27 air mi SW of Casper.
Gravelly-sandy dry banks of roadside dominated by Gutierrezia, Grindelia squarrosa, Artemisia campestris, and Bromus tectorum.

U.S.A., Wyoming, Fremont County: Sweetwater River Plateau: ridge ca 0.5-1.5 mi SW of Cranner Rock on south side of U.S. Hwy 287, ca 1.6 mi S of Sweetwater River; S of Split Rock Rest Area.
Low rolling plains on stabilized sand dune; Artemisia tridentata var. wyomingensis/A. nova/Chrysothamnus viscidiflorus community with Stipa comata, Carex filifolia, and Oryzopsis hymenoides. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.
with Laura Welp

U.S.A., Wyoming, Big Horn County: West Slope Big Horn Mountains: 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).
Lower end of trail on gravelly limestone at base of gray limestone cliffs. Weedy site dominated by Bromus and Amaranthus amid Juniperus scopulorum, J. osteosperma, Cercocarpus, and Rhus trilobata. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering & 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, & Potentilla paradox Sampled for molecular study-Rob Massatti, USGS Phenology: vegetative only.

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, & Potentilla paradoxa Sampled for molecular study-Rob Massatti, USGS Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Basin: Laramie at corner of 7th Street and Fremont Street, ca 0.15 mi W of the University of Wyoming.
Edge of weedy lawn and sidewalk on clay-rich soil. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Jemez Falls Road to turn south; two track and bushwack to southwest corner of Ranch.
Ponderosa pine forest with rock outcrops and swales. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: NM Hwy 4, from Bandelier National Monument boundary W 0.5 road mi.
Roadsides and along fenceline with some outcrops of volcanics. Phenology: flowering & fruiting.

U.S.A., New Mexico, San Juan County: 5 miles east of Prieta Mesa.
with W. F. Bond
Accession: RMRS (unaccessioned)

U.S.A., New Mexico, Rio Arriba County: 15 miles north of Espanola.
with E. McClintock
Accession: RMRS (unaccessioned)

U.S.A., New Mexico, Catron County: Jornada Experimental Range; near quadrat H. 3 P.
Accession: RMRS (unaccessioned)

U.S.A., Arizona, Navajo County: Apache National Forest; Sitgreaves National Forest; Heber area.
Phenology: flowering.

U.S.A., Arizona, Pima County: Tucson.

U.S.A., Colorado, Kiowa County: 2 mi SW of Arlington.
Grassland in loam. Phenology: flowering & fruiting.
Annotated by Jason R. Swallen.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest.
High ridge. Phenology: flowering & fruiting.
Alexander Best, 7. 8/28/1914.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest: Cow Creek.
High ridge. Phenology: flowering & fruiting.
Alexander Best, 8. 8/22/1914.

U.S.A., Colorado, Montrose County: Dolores River Canyon: ca 8.7 mi due E of Paradox.
Roadside in clay with Atriplex, rabbit brush and knappweed. Phenology: fruiting.

U.S.A., Colorado, Arapahoe County: Engelwood: field N of 6136 S Niagara Court; near housing development.
Common in prairie near housing development with Buchloe, Gutierrezia and Chrysothamnus. Phenology: fruiting.

U.S.A., Colorado, Gunnison County: 3 mi E of Sapinero.
With Artemisia. Phenology: fruiting.
Annotated by Harold D. Harrington in 1944.
with George Piranian & B. L. Richards Jr.

U.S.A., Colorado, Baca County: Campo Research Natural Area: Colorado Commanche National Grassland: W of U.S. Hwy 385; 3.5 mi S of Campo.
Abundant on 4% slope, 344 degree aspect, in loamy fine sand. Phenology: flowering & fruiting.
Annotated by C. H. Wassen in 1985.

U.S.A., New Mexico, Rio Arriba County: Chama.
Annotated by F. L. Scribner.

U.S.A., Colorado, Mesa County: Region of the Gunnison Watershed: Deer Run.

U.S.A., Colorado, Mesa County: Region of the Gunnison Watershed: Deer Run.
Annotated by Theodor Holm.

U.S.A., Colorado, Mesa County: Colorado National Monument.
Common in juniper/pinyon woodland in dry sandy soil. Phenology: fruiting.
with Marjorie W. Porter

U.S.A., Colorado, Saguache County: Cochetopa National Forest: Saguache Ranger Station. Also in
Occasional in grassland in gravelly loam. Phenology: flowering & fruiting.

U.S.A., Colorado, no county County: Cochetopa National Forest: dog hair country.
Infrequent in meadow in sandy loam. Phenology: flowering & fruiting.

U.S.A., Colorado, Montezuma County: Ute Indian Reservation: 15 mi SW of Towaoc.

U.S.A., Colorado, Weld County: Fort Lupton.

U.S.A., Colorado, Wed County: Evans.
Earl L. Johnston, 593A. //1909.

U.S.A., Colorado, Weld County: Evans.
Annotated by Aven Nelson.
Earl L. Johnston, 617. //1909.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest: 6 mi S of Glorieta Mesa.
Sparse in park in sand. Phenology: fruiting.
Frederic G. Renner, 13. 10/3/1922.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest: Santa Fe Creek: near boundary.
Sparse in woodland on decomposed granite. Phenology: flowering & fruiting.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest: Dalton Creek.
Common in sandy loam. Phenology: flowering & fruiting.
Frederic G. Renner, 46. 8/5/1923.

U.S.A., Colorado, Saguache County: Villa Grove.
Dry grassland. Phenology: flowering & fruiting.
Annotated by C. L. Porter.

U.S.A., Colorado, Alamosa County: Alamosa.
Annotated by C. L. Porter.

U.S.A., Colorado, Weld County: Roggen.
Common on sand hills. Phenology: fruiting.
Annotated by C. L. Porter.

U.S.A., Colorado, La Plata County: San Juan National Forest: MacDonald Ranch.
Frequent in Pinus ponderosa forest on 15 degree southwest slope in gravelly clay with Agropyron, Muhlenbergia, and Aster. Phenology: flowering & fruiting.
Gasper A. Loughridge., 476. 9/15/1934.

U.S.A., Colorado, Logan County: Sterling.

U.S.A., Colorado, Weld County: Windsor.
George E. Osterhout, 7963. 7/4/1933.

U.S.A., Colorado, Lincoln County: Burlington to Limon.
Also in Kit Carson County. Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest: 5 mi NW of Tres Piedras.
Ponderosa pine opening on 5% east slope in shallow and rocky loam with Chrysothamnus, Gutierrezia, Actinea, Bouteloua and Erigonum. Phenology: fruiting.

U.S.A., Colorado, no county County: Pike National Forest: South Platte Burn.
Open grassland in decomposed granite. Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Ca 7 mi E of El Rito on Hwy 96.
In sandy area at base of an eroding cliff. Phenology: fruiting.

U.S.A., Colorado, Boulder County: Colorado Tallgrass Prairie Natural Area: Parcel 7: S of Boulder; beginning of Colo Hwy 93.
Xeric tallgrass community on moderately steep terraces in cobbly and sandy soil. Phenology: fruiting.
Kanya Santanachote, 266. 8/28/1989.

U.S.A., Colorado, Arapahoe County: Buckley Air Force Base: transect across the slope, west end of the transect 880 m N of the southwest corner of the installation. 521144E 4393376N to 521290E 4393214N to 521319E 4393176N.
Shortgrass prairie on up to 10 degrees slope on silty loam; with Opuntia polyacantha, Artemisia frigida, Cirsium arvense, Elymus elymoides, Bouteloua gracilis, Buchloe dactyloides, Aristida purpurea, Bromus japonicus. Phenology: fruiting.
with N. E. Hastings

U.S.A., Colorado, Moffat County: Along Craig Meeker Road; ca 0.5 mi S of Axial.

U.S.A., New Mexico, Sandoval County: Jemez Creek: between Sierra Nacimento and Jemez Mountains; 12 mi N of San Ysidro on NM Hwy 4; 1 mi S of Jemez Springs.
Above creek in pinyon/juniper woodland in red sands. Phenology: fruiting.
Annotated by Arthur H. Holmgren.
with John S. Shultz

U.S.A., Colorado, Weld County:
Annotated by Jason R. Swallen.

U.S.A., Colorado, El Paso County: Pike National Forest: Broadmore slope near Colorado Springs.
Ponderosa pine in oak brush. Phenology: fruiting.
Annotated by Jason R. Swallen.

U.S.A., Colorado, El Paso County: Pike National Forest: Manitou Park.
Sandy creek bottom. Phenology: fruiting.

U.S.A., Colorado, Cheyenne County:
Sandy soil. Phenology: flowering & fruiting.
Annotated by Agnes B. Chase.

U.S.A., Colorado, Cheyenne County:
Plains in sandy soil. Phenology: flowering & fruiting.
Annotated by Harold D. Harrington in 1944.
1.
Annotated by Agnes B. Chase in 1944.

U.S.A., Colorado, Larimer County: W of Fort Collins.
River flats. Phenology: fruiting.

U.S.A., New Mexico, Colfax County: Ute Park.
In sandy meadow along creek. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sandoval County: 5 mi E of Mesa Prieta.
with W. F. Bond

U.S.A., Colorado, Moffat County: Sheep Head Basin.
Woodland. Phenology: flowering & fruiting.

U.S.A., Colorado, Garfield County: White River National Forest: Grizzly Creek: headwaters.
Scattered on level slope in moist loam sites. Phenology: flowering & fruiting.
Rich R. Thomson, RT-36. //1927.

U.S.A., Colorado, Garfield County: White River National Forest: Lookout Mountain.
Sparse on 30% west slope in moist loam. Phenology: flowering & fruiting.
Rich R. Thomson, RT-39. //1927.

U.S.A., Colorado, Washington County: Ca 15 mi ENE of Anton.
Sand hills with Palafoxia sphacelata and Eriogonum annuum. Phenology: fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest: Cebolla Mesa.
Scattered on west canyon side. Phenology: flowering & fruiting.

U.S.A., New Mexico, Lincoln? County: Carson National Forest.

U.S.A., New Mexico, Lincoln? County: Carson National Forest: ranger station pasture.
Sparse on west slope. Phenology: fruiting.

U.S.A., Colorado, Wed County:
Grassland. Phenology: fruiting.

U.S.A., Colorado, Boulder County: Boulder Mountain Parks: between Kohler and Enchanted Mesas.
Pinus ponderosa woodland. Phenology: fruiting.
Annotated by B. E. Nelson in 2011.

U.S.A., Colorado, Las Animas County: Mesa de Maya Region: Dripping Springs.
Growing in sandstone cliffs. Phenology: fruiting.
with Dina Clark and Rick Brune.

U.S.A., Colorado, Saguache County: Sangre de Cristo Range: Luis Maria Baca No 4 Grant; along road between Spanish and Cottonwood Creek; ca 5 mi S of Crestone.
Pinyon/juniper in sandy soils. Phenology: flowering & fruiting.

U.S.A., Colorado, Saguache County: Rio Grande National Forest: Sangre de Cristo Range: Hot Springs Canyon drainage.
Pinyon/juniper and oak woodlands. Phenology: fruiting.

U.S.A., Colorado, Lincoln County: 8 mi SW of Aroya.
Sand sage area. Phenology: fruiting.

U.S.A., Colorado, Baca County: 2 mi S of Walsh.
Sandy fields. Phenology: flowering & fruiting.
with R. C. Wittmann

U.S.A., Colorado, Boulder County: Sunshine Canyon.

U.S.A., New Mexico, Lincoln County: Lincoln National Forest: Ruidoso District, near Ranger Station on river.
Scattering on level silty loam with Helianthus. Lincoln/Otero counties Phenology: spores.
Robert S. Cambell, 6. 8/20/1928.
with Vance A. Thomas

U.S.A., Wyoming, Albany County: Laramie Range: along North Laramie River.
Along trail to river. Phenology: fruiting.
with T. McGowan & J. Brondum

U.S.A., Wyoming, Carbon County: South-central Wyoming: sand hills on Dry Cow Creek drainage, ca 5 air mi SW of Doty Mountain; ca 29 air mi SSW of Rawlins.
Sand dunes. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: Mill Creek bridge on U.S. Hwy 395, ca 1.5 road mi W of Colville.
Sandy streambank. Phenology: flowering & fruiting.
with Diane Pavek
Accession: (unaccessioned)

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Bench exposed due to draw-down of Palisades Reservoir and adjacent non affected area. Phenology: flowering.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Hat Creek Breaks: ridge between S Bar and East Indian Creeks, ca 1.5 air mi SW of Whitman; ca 18 air mi NE of Lusk.
Roadside. Phenology: flowering & fruiting.

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.
Bench along the stream.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: along Crystal Creek Road above Crystal Creek, ca 17 air mi SE of Lovell.
Sandy clay slopes with scattered sagebrush.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: Katys Nipple and vicinity, ca 9 air mi E of Lovell.
Sandstone rimrock.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: between Lovell Lakes and Little Sheep Mountain, ca 4 air mi SE of Lovell.
Sandy areas between clay flats.

U.S.A., Wyoming, Park County: Bighorn Basin: Along Wyo Hwy 114, ca 3 air mi NNW of Garland, ca 6 air mi NE of Powell.
Low rolling areas of sand.

U.S.A., Wyoming, Big Horn County: Bighorn Basin: just S of Montana, ca 3 air mi NE of Frannie, ca 14 air mi NW of Lovell.
Atriplex gardneri flats.

U.S.A., Wyoming, Park County: Bighorn Basin: Shearing Pens Reservoir above West Branch Whistle Creek, ca 12 air mi SE of Powell.
Flats near reservoir.

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.
Stream bottom with scattered cottonwoods.

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.
Occasional in clay in stream bed with Beckmannia and Echinochloa. Phenology: flowering & fruiting.

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.
Infrequent along river with Elymus and Muhlenbergia. Phenology: flowering & fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: Six Mile Reservoir and vicinity, ca 12 air mi NNW of Worland; ca 9 air mi SW of Manderson.
Sandy to sandy clay sagebrush-saltbush-hopsage plains.

U.S.A., Wyoming, Natrona County: Pathfinder Reservoir, ca 23 3/4 air mi ENE of Muddy Gap Junction (Three Forks).
Sandy beach. Phenology: flowering & fruiting.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Sweetwater Rocks, ca 8 air mi ENE of Jeffrey City.
Moist sides of drainage. Phenology: flowering & fruiting.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Wind River Basin: Ocean Lake, east side, ca 3 air mi WSW of Midvale.
Sagebrush grassland. Phenology: flowering & fruiting.
with Georgia Haines

U.S.A., Wyoming, Platte County: Hartville Uplift: Patten Creek, ca 16 air mi SSE of Glendo.
Margins of deep pools in creek, wet sedge meadows, cutbanks, ponderosa pine slopes, little bluestem grassland on hilltops and slopes, silver sage grassland above creek; with silver sage. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 8 air mi NW of Pine Tree.
Dissected plains, eroded slopes of draw; plains. Phenology: flowering & fruiting.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Johnson County: Powder River Basin: along Willow Creek, ca 3 air mi NW of North Pumpkin Butte.
Plains, flats along creek, eroded banks; flats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Powder River Basin: ca 1 air mi N of Orpha.
Plains along highway right-of-way, dry ditches; ditch. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Sandy plains and draw, sandy roadcut and stream cut bank, sandy hill; roadside. Phenology: flowering & fruiting.

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

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, Laramie County: [location and coordinates withheld]
Stabilizing sand dunes. Phenology: flowering.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: just W of 55 Ranch or County Road 23 and just NW of Rolling Hills, ca 4.2 air mi N of Glenrock; ca 3.5 air mi N of the North Platte River.
Sand dunes with active and stabilized areas and blowouts. Phenology: flowering & fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: W of 55 Ranch or County Road 23 and Dave Johnston Coal Mine, ca 14.3 air mi N of Glenrock or 13.6 air mi N of the North Platte River.
Roadside. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: along Wyo Hwy 159, ca 5.5 air mi N of Torrington; ca 7.5 air mi E of Lingle.
Stabilized sand dunes. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole Rim: between Lone Tree Canyon and Castle Rocks off County Road 155, ca 8-8.5 air mi SW of Hawk Springs; ca 27 air mi SSW of Torrington.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole Rim: between Lone Tree Canyon and Castle Rocks off County Road 155, ca 8-8.5 air mi SW of Hawk Springs; ca 27 air mi SSW of Torrington.
Dune sand area below sandstone outcrops. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
End of wheat and fallow strips and adjacent roadside. Phenology: flowering.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Dickau or County Road 47, on a tributary of West Fork Twentymile Creek, ca 19.5 air mi NE of Douglas; ca 10.8 air mi NNW of Shawnee.
Roadside. Phenology: fruiting.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Lance Creek off Lance Creek or County Road 14, ca 7.3 air mi N of Lance Creek; ca 27.5 air mi NNW of Lusk.
Roadside and adjacent bladed areas. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: [location and coordinates withheld]
Roadside and adjacent shoulders. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: along North Platte River just below mouth of Laramie River, at east edge of Fort Laramie National Historic Site, ca 1.3 air mi SSW of Fort Laramie; ca 20 air mi WNW of Torrington.
Sandy upland and steep slopes along the river. Phenology: buds.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: along the North Platte River on London Flats, ca 2.2 air mi S of Lingle, ca 9.5 air mi WNW of Torrington.
Sand bars, muddy river bank, and low areas in the river bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: [location and coordinates withheld]
Sandy-gravelly floodplain with scattered cottonwoods, Russian olives, and patches of snowberries. Phenology: flowering.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: just N of Wendover in Wendover Canyon along the North Platte River, ca 8 air mi NW of Guernsey.
Along railroad tracks in the canyon. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: divide between Little Teapot and Seven L drainages, ca 3/4 air mi SSE of the south end of Naval Petroleum Reserve No. 3 (Teapot Dome), ca 15.5 air mi SE of Midwest.
Sandy roadside. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: at the northeast base of Castle Rock ca 5 air mi SSE of Midwest, ca 35 mi N of Casper.
Dry mud flats of a small reservoir. Phenology: 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.
Roadside and between road and fence. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Salt Creek between Pine and Little Pine ridges ca 2 air mi E of Naval Petroleum Reserve No. 3, ca 12 air mi SE of Midwest; ca 29.5 air mi NNE of Casper.
Flats along the stream bottom with areas of sand, silt and clay. Phenology: flowering.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Highland Loop or County Road 32, ca 2.3 air mi NW of Lightning Creek, ca 13.3 air mi SSW of Bill; ca 20 air mi N of Douglas.
Sandy area near sandstone knolls. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along County Road 48 just E of Sixmile Creek, ca 4.5 air mi SW of Fort Laramie; ca 23.5 air mi WNW of Torrington.
42.1832° N, 104.614° W; NAD 83, uncertainty 700 ft., Nat. Geog. TOPO!
Roadside and adjacent roadcut. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along County Road 27, ca 1.5 air mi N of the end of Wyo Hwy 159, ca 2.3 air mi NE of Tea Kettle Rock; ca 13.5 air mi N of Torrington.
Roadside furrow and adjacent sandy grassland. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along County Road 32, ca 1.25 air mi W of County Road 27, ca 16.8 air mi N of Torrington; ca 14 air mi SE of Jay Em.
Rolling sandy plains dominated by Calamovilfa. Phenology: fruiting.

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

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: along the Laramie River E of the fort ca 2.5 air mi WSW of Fort Laramie (town); ca 21 air mi WNW of Torrington.
Dry, sandy flats above the river. Phenology: fruiting.
with David Reilly

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: below the Fort Laramie Canal ca 2.5 air mi WSW of Fort Laramie (town), ca 20.5 air mi WNW of Torrington.
Dry, sandy areas in the river bottom. Phenology: fruiting.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Chivington Draw W of Egbert or County Road 154 ca 10 air mi N of Egbert; ca 13.3 air mi NW of Pine Bluffs.
Stony, gravelly channel in the valley. Phenology: flowering.

U.S.A., Wyoming, Laramie County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along County Road 143 ca 1 air mi S of Little Horse Creek and ca 2.5 air mi N of U.S. Hwy 85 at Midway, ca 18.7 air mi W of Albin; ca 28 air mi NE of Cheyenne.
Sandy road right-of-way adjacent to mixed grass plains. Phenology: fruiting.

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Antelope Creek and Ross or County Road 31, ca 31 air mi WNW of Bill, ca 50.5 air mi NNW of Douglas, ca 3.5 air mi SE of Ross.
Dry flats at the base of the bluffs. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 0.5 mi S of Horseshoe Creek along Horseshoe Creek or County Road 59 ca 15.5 air mi SW of Glendo; ca 27.5 air mi NNW of Wheatland.
At the edge of pavement and on the right-of-way. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: along County Road 41, ca 2 air mi N of the North Platte River, ca 3.5 air mi ESE of Lingle; ca 6 air mi NW of Torrington.
Roadside, adjacent right-of-way and fence row. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along County Road 21 ca 6 air mi E of the confluence of Red Cloud Slough and Rawhide Creek, ca 7.8 air mi ESE of Jay Em; ca 28 air mi N of Torrington.
Roadside, adjacent right-of-way and fence row. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along U.S. Hwy 85, ca 5.8 air mi S of Jay Em, ca 16.5 air mi N of Lingle.
Highway right-of-way. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: Bump-Sullivan Reservoir, ca 4 air mi S of Yoder; ca 15 air mi SSW of Torrington.
Two track through sandy-silt area. Phenology: fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: vicinity of the Oregon Trail ruts above the North Platte River, ca 3 air mi W of Fort Laramie (town), ca 23 air mi NW of Torrington.
Sandy plains of sand sage-grassland. Phenology: fruiting.
with David Reilly

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

U.S.A., Wyoming, Converse County: [location and coordinates withheld]
River margin and banks. Phenology: flowering.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
Stream bed and sandy plains. Phenology: flowering.

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: flowering & fruiting.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 7 air mi E of Albany County.
Sandy slopes. Phenology: flowering.

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: flowering.

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

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

U.S.A., Wyoming, Sublette County: Green River Basin: ca 2 air mi S of Boulder.
Gravel roadsides and irrigation ditchsides. 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. Sampled for molecular studey-Rob Massatti, USGS, 2018 Phenology: flowering & fruiting.
with Jane T. Kellett

U.S.A., Wyoming, Crook County: Devils Tower National Monument: Belle Fourche River, ca 100 yds upstream from bridge.
Occasional on coarse alluvial soil with Spartina pectinata. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Devils Tower National Monument: along road to picnic area.

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

U.S.A., Wyoming, Crook County: Black Hills: Belle Fourche River near Mona, ca 14.5 air mi NNE of Hulett.
Disturbed grassland near river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Devils Tower National Monument.
Common on red shale soil with Juniperus scopulorum. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Black Hills: U. S. Hwy 16 near State Line (Gillette Canyon), ca 9.5 air mi SE of Newcastle.

U.S.A., Wyoming, Crook County: Eastern Plains: Little Missouri River, ca 10 mi NW of Oshoto.
Sparse Sarcobatus vermiculatus commuity with understory of Elymus smithii, Bromus squarrosus, and Opuntia polyacantha on silty-clay alluvial terrace. Phenology: fruiting.
with Steve Kettler

U.S.A., Wyoming, Crook County: About 1 1/2 mi SSE of Beulah.
Grassland with Bouteloua, Andropogon. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: 5-6 mi NE of Aladdin.
Uncommon on grassland ridge near ponderosa pine. Phenology: flowering & fruiting.
Ronald G. Schreibeis, AL--70. 7/27/1976.

U.S.A., Wyoming, Crook County: Black Hills: I-90, ca 15 air mi SW of Sundance.

U.S.A., Wyoming, Crook County: Black Hills: Tomcat Creek Oil Field, ca 19 air mi SW of Sundance.
Pinus ponderosa woodland on rolling hills of shale with wet drainages, shale badlands, Sarcobatus vermiculatus flats, and sandy sagebrush Artemisia slopes; salt flats. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: W of I-25 at Exit 2 (Wooten exit).
Dirt road west of freeway at small bridge; riparian with Quercus gambellii. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: along Cimarron River and Turkey Trail ca 1 air mi E of Kan Hwy 27, ca 8.5 air mi N of Elkhart.
Low sand dunes in the river bottom, with scattered cottonwood. Phenology: flowering & 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: flowering & fruiting.
Annotated by Bernadette Kuhn.

U.S.A., Colorado, Otero County: Comanche National Grassland: along County Road N, ca 21 air mi SW of La Junta.
Roadside, near Conservation Reserve Program land dominated by weedy Hordeum and Bromus. Phenology: flowering & fruiting.
Annotated by Bernadette Kuhn.
with B. E. Nelson

U.S.A., Colorado, Baca County: Comanche National Grassland: North Ute Canyon, 27 air mi S of Springfield.
Rocky upland area with Yucca and Opuntia. Phenology: flowering & fruiting.
with B. E. Nelson

U.S.A., Colorado, Otero County: Comanche National Grassland: Timpas Cementary, ca 17 air mi SW of La Junta.
Rocky upland, shortgrass prairie with Stipa comata and Elymus smithii. Phenology: flowering & fruiting.
with Joe Rankin.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 13 air mi SW of Pritchett.
Heavily grazed, shortgrass prairie with lone elm. Phenology: flowering & fruiting.
with Joe Rankin.

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 4 air mi NW of Elkhart.
Shortgrass prairie dominated by Buchloë dactyloides and Elymus smithii. Phenology: fruiting.
with Joe Rankin

U.S.A., Kansas, Morton County: Cimarron National Grassland: Point of Rocks, ca 7 mi N of Elkhart.
At ponds, sandy banks dominated by Tamarix ramosissima, Salix exigua, and Scirpus. Phenology: flowering & fruiting.
with Joe Rankin

U.S.A., Colorado, Baca County: Comanche National Grassland: Campo Cementery, 1 mi E of Campo on County Road J.
Shortgrass prairie flanked by cultivated trees--Ulmus pumila and Gleditsia triocanthos. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: along Purgatoire River Valley near Rourke Ranch, ca 28 air mi SSW of La Junta.
River valley dominated by Solanum elaeagnifolium, Salsola tragus, Bromus tectorum, and Melilotus albus. Phenology: fruiting.
with Quinn Long, Jennifer Moody-Weiss, and Gianna Short

U.S.A., Colorado, Las Animas County: Comanche National Grassland: along Purgatoire River, SW of Rourke Ranch, ca 28.5 air mi SSW of La Junta.
Along river in sandy soil with Sambucus, Bromus tectorum, and Kochia scoparia. Phenology: flowering & fruiting.
with Quinn Long, Jennifer Moody-Weiss, and Gianna Short

U.S.A., Colorado, Otero County: Comanche National Grassland: Withers Canyon Corrals, ca 23 mi SSW of La Junta.
At corrals in heavily grazed shortgrass prairie with Opuntia imbricata. Phenology: fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: Southeastern Colorado Research Station, 7.5 mi WSW of Springfield.
House site and pasture dominated by Aristida sp. and Buchloë dactyloides. Phenology: flowering.

U.S.A., Colorado, Baca County: Comanche National Grassland: Carrizo Canyon, S of picnic area along Carrizo Creek, ca 29 air mi SW of Springfield.
Shortgrass prairie dominated by Aristida purpurea and Bouteloua spp. Phenology: flowering & fruiting.
with Amy Tomson

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 14 air mi SW of La Junta.
Roadside near old irrigation canal. Phenology: flowering & fruiting.
with Joe Rankin

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 15 air mi S of La Junta.
Weedy canyonside dominated by Juniperus monosperma. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: ca 3 mi S of Tobe, ca 56 air mi S of La Junta.
Shortgrass prairie below mesa. Phenology: fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland: Colo Hwy 109 ca 5 mi S of La Junta at the entrance sign to Comanche National Grassland.
Roadside and shortgrass prairie with grama grass and annual sunflower; soils grayish and limestone derived. Phenology: flowering & fruiting.

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 & fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 12 air mi S of Colo Hwy 10 on County Road 12 and 0.5 mi W of County Road K, ca 20.5 air mi SW of Rocky Ford.
Sandy shortgrass prairie, dominated by Opuntia sp. and Elymus elymoides. Phenology: flowering.

U.S.A., Colorado, Otero County: Comanche National Grassland: Timpas Creek, just N of U.S. Hwy 350 and Bloom, ca 13 air mi SW of Timpas.
Scattered Populus and Juniperus monosperma; creek with Juncus sp. and Eleocharis sp. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: ca 1-1.5 air mi W of Kim on County Road 36.
Elm grove along road with heavy cover of Convolvulus arvensis. Phenology: flowering & fruiting.
with Cali Hemenway

U.S.A., Colorado, Baca County: Comanche National Grassland: Picture Canyon, ca 28 air mi SSW of Springfield.
Along sandstone cliffs at park entrance. Phenology: flowering & fruiting.
with Cali Hemenway

U.S.A., Kansas, Morton County: Cimarron National Grassland: at gas compressor station, ca 2 air mi S of Wilburton.
Sandsage prairie. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 3 air mi NE of Wilburton.
Sandsage prairie dominated by Yucca glauca, Artemisia, and Aristida purpurea. Phenology: flowering & fruiting.

U.S.A., Colorado, Otero County: [location and coordinates withheld]
Shortgrass prairie dominated by Aristida purpurea. Phenology: flowering & fruiting.

U.S.A., Colorado, Otero County: [location and coordinates withheld]
Flowing irrigation canal dominated by Salix exigua and Rumex crispus. Phenology: fruiting.

U.S.A., Colorado, Custer County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: from the edge of forest to the San Isabel National Forest Boundary, WSW of the end of County Road 120, S of Westcliffe.
Mixed conifer. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: Whitby Canyon N of Big Hole Spring, ca 21 air mi SSW of Pritchett.
Dakota sandstone canyon dominated by Juniperus monosperma, Quercus sp. and Rhus aromatica. Phenology: flowering & fruiting.

U.S.A., Colorado, Otero County: [location and coordinates withheld]
Roadside dominated by Bothriochloa laguroides and Cucurbita foetidissima. Phenology: flowering & fruiting.

Dominated by Melilotus officinalis, near large Ulmus. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 5 air mi E of Utleyville; ca 20 air mi WSW of Springfield.
Sandsage prairie with large stands of Sporobolus and Andropogon gerardii. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: Middle Sand Canyon on County Road M, ca 15.5 air mi SSW of Pritchett.
Sandy prairie dominated by Sporobolus, Aristida, and Schedonnardus. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Shortgrass prairie upland above creek dominated by Ratibida columnifera, Sphaeralcea coccinea, and Bothriochloa laguroides. Phenology: flowering & fruiting.
with Everett Jackson

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 0.5 air mi N of Cimarron River, ca 8.5 air mi NW of Elkhart.
Sandsage prairie with Yucca glauca, Artemisia filifolia, and Mentzelia sp. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: along County Road B, ca 4.5 air mi W of Elkhart.
Dominated by Ipomoea leptophylla and Artemisia filifolia. Phenology: fruiting.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Sandstone canyon with Ptelea trifoliata, Rhus aromatica, and scattered Juniperus monosperma. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: E of County Road 24, ca 6 air mi SW of Campo.
Sandsage prairie with Thelesperma megapotimicum, Xanthisma spinulosum, and Aristida purpurea. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: SW of the intersection of County Road G and County Road 21, ca 8 air mi WSW of Campo.
Shortgrass prairie with sandy soil, dominated by Sporobolus airoides and Bothriochloa laguroides. Phenology: fruiting.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Dakota sandstone canyon dotted with Juniperus monosperma. Phenology: flowering & fruiting.
with Don Hazlett

At spring, Dakota sandstone canyon dominated by Prunus, Ribes, and Rhus. Phenology: flowering.
with Don Hazlett

U.S.A., Colorado, Otero County: Comanche National Grassland: near Hall Ranch, along two track, 0.5 mi E of Government Reservoir, ca 27air mi SW of La Junta.
Shale outcrops with scattered Juniperus monosperma. Phenology: fruiting.
with Don Hazlett

U.S.A., Colorado, Otero County: Comanche National Grassland: near Hall Ranch, between Christian and Devils canyons, ca 34 air mi SW of La Junta.
In swale dominated by Mirabilis multiflora and Bouteloua. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Dillon Canyon Road (NM Hwy 476) opposite mouth of Gardiner Canyon, on southwest side of golf course on southwest side of Raton.
Dry weedy road shoulders, with Helianthus annuus, Ericameria nauseosa, grasses. Tufted; frequent in bare soil on road edge. Phenology: flowering & fruiting.
Annotated by Ben Legler on 10/18/2008.

U.S.A., Colorado, Fremont County: [location and coordinates withheld]
Roadside and prairie. Phenology: flowering & fruiting.

U.S.A., Colorado, Huerfano County: [location and coordinates withheld]
Prairie. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: in Crow Canyon at mouth of Little Crow Canyon; 3.8 air mi NW of Koehler.
Dry canyon bottom; rocky soil with Melilotus officinalis, Mentzelia multiflora, Kochia scoparia, and Elymus canadensis. Tufted; frequent. Photographed. Specimen GPS: 36.787399, -104.657928. Phenology: flowering.
Annotated by Ben Legler on 1/2/2009.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Van Bremmer Creek on downstreamside of mouth of Trail Canyon; 12.2 air mi NNE of Cimarron.
Dry canyon bottom grassland, with Chenopodium, Ratibida columnifera, Grindelia, Verbena macdougalii, Krascheninnikovia lanata Local in patch of bare disturbed soil. Specimen GPS: 36.686878, -104.868652. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 389 S of Branson at the New Mexico state line.
Quercus. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: road along crest of ridgeline between Left Fork and Right Fork of York Canyon; 4.3 air mi N of Casa Grande.
Gravel road maintained for oil well access, with dry gravelly shoulders and scattered weeds; located in recently burned Pinus ponderosa forest. Tufted; occasional on gravel road shoulder. Photographed. Specimen GPS: 36.951595, -104.971535. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: on south side of Vermejo River 2.2 air mi due W of I-25 and 3.5 air mi SW of Maxwell.
Moist, silty river bottoms with Tamarix chinensis, Helianthus annuus, Kochia scoparia, and Mirabilis nyctaginea. Tufted; occasional. Specimen GPS: 36.509506, -104.601234. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering.

Riparian and prairie. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: hillside on south side of mouth of Van Bremmer Canyon 1.8 air mi NW of U.S. Hwy 64.
Steep sandstone hillside and small cliffs, east-facing, with Pinus edulis, Juniperus monosperma, Cercocarpus montanus, and Bouteloua curtipendula. In small tufts in scree; uncommon. Specimen GPS: 36.579899, -104.814812. Phenology: flowering.
Annotated by Ben Legler on 1/2/2009.

U.S.A., Wyoming, Carbon County: Saratoga Valley: north end of Overland Flats on east side of Wyo Hwy 130, ca 3/4 mi S of Walcott Junction.
Highway right of way. Phenology: flowering & fruiting.

U.S.A., New Mexico, Union County: Kiowa National Grassland: Forest Road K1, 9 air mi SSW of Texline.
Shortgrass prairie, recently grazed, some along dry stream bed. Phenology: flowering & fruiting.
Michael Schiebout, 909. 7/13/2004.

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: along a draw leading into Ward Gulch and to Spring No. 1, ca 17 air mi SW of Buffalo.
Slash burn areas. Phenology: 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.
Grass dominated meadow. Phenology: 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-dominated butte top. Sampled for molecular study-Rob Massatti, USGS Phenology: 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.
Green ash and Prunus spp.-dominated draw. Sampled for molecular study-Rob Massatti, USGS Phenology: fruiting.
with G. Gust

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 1.5 road mi E of Rye.
Roadside and road cut. Phenology: flowering & fruiting.
with Craig Freeman

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: I-25 frontage road to Chicosa Canyon, SE of Hoehne exchange.
Annotated by Brian Elliott.

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: McCoy Gulch, ca 3.2 air mi S of Cotopaxi.
Oak-pinyon-juniper woodland and openings. Phenology: flowering & fruiting.
Annotated by Brian Elliott.

U.S.A., South Dakota, Fall River County: Cascade Falls.
Old orchard. Abundant. Phenology: flowering.
Annotated by A. C. McIntosh.

U.S.A., South Dakota, Fall River County: No locality.
Phenology: flowering.
Annotated by S. S. Visher.

U.S.A., North Dakota, Benson County: Pleasant Lake.
Bare gravelly plain. Phenology: flowering.
Annotated by J. Lunell.

U.S.A., North Dakota, Ransom County: Leonard.
Sand hills. Phenology: flowering.
Annotated by O. A. Stevens.

Sporobolus cryptandrus ()
U.S.A., South Dakota, no county County:
Cultivated ground, rather dry. Not abundant. Phenology: flowering.
Annotated by S. A. Skinner.

U.S.A., Nebraska, Buffalo County: East edge of Pleasanton: north side of South Loup River.
Sandy exposed roadside bank. Phenology: flowering.
Annotated by Ralph E. Brooks.

U.S.A., Nebraska, Kimball County: Pine Bluffs: along intermittant drainage to Lodgepole Creek, 1.8 air mi NE of Pine Bluffs (town).
Weedy sagebrush and grasses. Phenology: flowering.
Annotated by Karin M. Guernsey.

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

U.S.A., Nebraska, Kearney County: Minden.
Annotated by Harry Hapeman.
Harry Hapeman, s.n.. 7/4/1891.

U.S.A., Nebraska, Scotts Bluff County: Near Scotts Bluff
Dry sandy soil. Phenology: flowering.
Annotated by P. A. Rydberg.

U.S.A., Nebraska, Kearney County: Minden.
Annotated by Harry Hapeman.
Harry Hapeman, s.n.. 6//1896.

U.S.A., Nebraska, Sioux County: 5 mi E of Harrison.
Fairly well stabilized sand hills. Phenology: flowering.
Annotated by John R. Reeder.

U.S.A., Nebraska: North of Sidney.
Annotated by George E. Osterhout.
George E. Osterhout, 7745. 7/7/1932.

U.S.A., Nebraska, Douglas County: Valley.
Annotated by C. L. Shear.

U.S.A., South Dakota, Custer County: Harney National Forest: across road from Custer Ranger Station.
On 10% south slope; shallow clay loam soil; open flats. Common. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Lower Cascade Valley.
Waste field. Abundant. Phenology: flowering.

U.S.A., Montana: Custer National Forest: Whitetail Ranger Station.
Slope 5%, south aspect; sandy, gravel loam soil; with prairie clover, rabbit brush, sunflower. Very rare. Phenology: flowering.
Annotated by J. N. Templer.
with W. E. Lockhart

U.S.A., Montana: Custer National Forest: Whitetail Ranger Station.
Northwest alfalfa patch, southeast slope; sandy loam soil. Patchy, slight abundance. Phenology: flowering.
Annotated by James N. Templer.

U.S.A., Montana: Custer National Forest: Fort Howes Ranger Station.
Pasture; gumbo soil; level ground; with sagebrush. Not very abundant; sparse distribution. Phenology: flowering.
Annotated by Robert B. Rolfe.

U.S.A., Montana: Arrow Creek.
Bottom. Phenology: flowering.
Annotated by Frank A. Spragg.
Frank A. Spragg, s.n.. 7/3/1901.

U.S.A., Montana, Madison County: Rochester.
T2S R7W S31 SE1/4
Flat ground, shallow sandy soil; sage; with Ag, Sg, Rg, Yb. Condsiderable abundance. Phenology: flowering.
Annotated by Fred Benson.

U.S.A., Montana, Cascade County: Great Falls.
Annotated by R. S. Williams.

U.S.A., Montana, Dawson County: East of Glendive.
Annotated by E. J. Bell.

U.S.A., Montana, Richland County: Along road from Crane north to Lambert.
Meadow with sandy soil; with other tall grasses. Phenology: flowering.
Annotated by Klaus H. Lackschewitz.
Klaus H. Lackschewitz, 9226. 8/30/1979.

U.S.A., Montana, Big Horn County: CX Coal Site.
Hillside in rocks and sandy soil. Phenology: flowering.
Annotated by D. E. Brink.
with L. M. Mayer

U.S.A., Montana, Silver Bow County: Melrose.
Annotated by C. L. Shear on 8/1/1895.

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 & fruiting.

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 & fruiting.

U.S.A., Wyoming, Natrona County: [location and coordinates withheld]
Sagebrush-grassland. Phenology: flowering.

U.S.A., Colorado, Costilla County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Luis Valley: Forbes Trinchera Ranch: ca 2 mi E of Fort Garland on U.S. Hwy 160.
Along the railroad right-of-way and roadside. Phenology: flowering & fruiting.
with Pete Schneider

U.S.A., Colorado, Costilla County: [location and coordinates withheld]
Riparian (irrigation ditch). Phenology: flowering & fruiting.
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 & 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: fruiting.

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: ca 2 air mi up Box Canyon, ca 5 air mi SE of Salida on south side of U.S. Hwy 50.
Riparian, Pinus edulis. Phenology: flowering & fruiting.
with Elizabeth Mark

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.
Gravelly edge of road. Phenology: flowering & fruiting.

U.S.A., Montana, Phillips County: Along North Whitewater Road ca 5 air mi N of Whitewater; ca 35.5 air mi NNE of Malta.
Gravelly roadside. Phenology: flowering.

U.S.A., Montana, Phillips County: Bjornberg Bridge Fishing Access Site: along the Milk River, ca 7 air mi ENE of Saco.
Parking area. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Sheep Mountain: on the east side near Chokecherry Gulch.
T15N R77W S22; also S23
Phenology: vegetative only.

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: east side of Canon City along U.S. Hwy 50.
with Elizabeth Mark

U.S.A., Montana, Valley County: [location and coordinates withheld]
Empty lot and disturbed graveled area. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 6602. 7/3/2011.

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: flowering & fruiting.
Joseph L. M. Charboneau, 9237. 8/9/2011.

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.

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.
Green ash and Prunus spp.-dominated draw. Phenology: fruiting.
with G. Gust
Accession: (unaccessioned), Barcode: USFS0050419

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.
Grass dominated meadow. Phenology: fruiting.
Accession: (unaccessioned), Barcode: USFS0050420

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: U.S. Hwy 50, 2.5 air mi NW of Howard.
Pinyon-juniper with rock outcrops. Sampled for molecular study-Rob Massatti, USGS Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River Drainage: along U.S. Hwy 14, 16, and 20, ca 0.1 mi W of Rattlesnake Creek.
On road shoulder. Phenology: buds.

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: W of the north end of the Shavano Valley, roadside and wash just NW of Rim Road, ca 7.5 air mi SSW of Olathe.
Sparse pinyon/juniper/shrub/rock mix. Phenology: flowering.
1. Sporobolus cryptandrus (Torr.) A. Gray.

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 & fruiting.

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: 1-2 air mi ESE of Badito Cone.
Pinyon-juniper. Phenology: flowering & fruiting.
Annotated by Brian Elliott.

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.

U.S.A., Colorado, Delta County: Uncompahgre Plateau: Sawmill Mesa; Sawmill Mesa Cutoff Road, Club Gulch above Club Gulch Reservoir, ca 8.5 air mi SW of Delta.
Wash in sandstone canyon in sparse pinyon/juniper/shrub mix. Phenology: flowering.
1. Sporobolus cryptandrus (Torr.) A. Gray.

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: Sawmill Mesa, NW of Stone Basin, ca 15 air mi SW of Delta.
Grassy swale in sagebrush. Phenology: flowering.
1. Sporobolus cryptandrus (Torr.) A. Gray.

U.S.A., Colorado, Delta County: North Fork Valley: roadside off of Colo Hwy 92, ca 4.5 air mi SE of Hotchkiss.
Mancos shale derived adobe hillsides. Phenology: flowering.

U.S.A., Colorado, Delta County: Gunnison Gorge National Conservation Area: West River Trail from trailhead on South River Road, near the confluence of the North Fork Gunnison River and the Gunnison River to the Gunnison Gorge Wilderness area, ca 6 air mi SW of Hotchkiss.
Lowland riparian in sparse/pinyon/juniper/rock. 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.
with Gay Austin

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: Horse Mesa, Tabeguache Trail or SS Road, ca 23 air mi NNW of Delta.
Pinyon/juniper that had been treated (maybe mechanically). Phenology: flowering.
with Gay Austin

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: Cactus Park, ca 0.5 road mi SE of Colo Hwy 141, ca 24 3/4 air mi NW of Delta.
Sagebrush mixed with pinyon/juniper. Phenology: flowering.
with Gay Austin

U.S.A., Colorado, Delta County: Uncompahgre Plateau: Little Dominguez Canyon from Poison Canyon to the bend on the east side of Star Mesa, ca 16.5 air mi WNW of Delta.
Sandy soil in sparse pinyon/juniper/shrub/rock mix. Delta and Mesa County Phenology: flowering.

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Spring Gulch and near highway.
Canyon bottom and sides. Phenology: flowering & fruiting.

U.S.A., Idaho, Lemhi County: Salmon River canyon: alluvial fan at the confluence of the Salmon River and Horse Creek, 22.2 air mi W of Shoup.
<25 individuals estimated in xeric coarse textured soil within herbaceous riparian vegetation, 6 degree slope, SW aspect, granodiorite geology. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Packer Lake ca 5 mi ESE of Huntley.
41° 54' N, 104° 3.7' W; unknown, , Specimen Label
Grassland, with Artemisia filifolia and Calamovilfa. Phenology: flowering & fruiting.

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.

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

U.S.A., Colorado, Mesa County: Uncompaghre Plateau: Unaweep Canyon, lower East Creek, ca 25 3/4 air mi NW of Delta.
Pinyon/juniper next to creek in sandstone canyon. Phenology: flowering.

U.S.A., Colorado, Delta County: Escalante Canyon Road and Dominguez Rim, ca 12 air mi WNW of Delta.
Desert shrub community. Phenology: flowering.

U.S.A., Wyoming, Albany County: Laramie River.
Accession: RM (unaccessioned), Barcode: 10740

U.S.A., Wyoming, Carbon County: Ca 27.5 mi N of Rawlins.
Growing in sandy hills of sagebrush grassland with Calamovilfa longifolia, Stipa comata, Psoralea lanceolata, and Oryzopsis hymenoides. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: West slope Laramie Range: ca 1.3 mi NE of U.S. Hwy 30, ca 3.6 air mi E of downtown Laramie.
Rocky upland slope, gravelly soil, south aspect; with Elymus spicatus, Gutierrezia sarothrae. Phenology: flowering.

U.S.A., Utah, Daggett County: Southwestern Wyoming and Adjacent Utah: Browns Park: Green River, ca 12.2 air mi ESE of Dutch John.
T2N R25E S31 NW1/4; also T2N R24E NE1/4 S36
Sandy soils. Phenology: flowering & fruiting.
with Barbara McNight

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Miracle Mile on North Platte River, ca 1.5 air mi NNE of Kortes Dam.
Sandy sagebrush-grasslands; yucca also common. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: along Poison Spider Road, ca 19.4 air mi SE of Waltman.
Sagebrush-grassland and roadside; red sandy soil. Phenology: flowering.

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.