Bouteloua curtipendula var. curtipendula (2002)
POACEAE
Bouteloua curtipendula (Michx.) Torr. var. curtipendula
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ridge and ravines leading to Wild Horse Creek on gravel road off York or Forest Road 900, ca 30 air mi NNE of Gillette; ca 30 air mi NNW of Moorcroft.
Narrow ravine floor, grassy, with exposed bedrock. Phenology: flowering & fruiting.
Accession: RM (unaccessioned)

Bouteloua curtipendula var. curtipendula (2003)
POACEAE
Bouteloua curtipendula (Michx.) Torr. var. curtipendula
U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hills NW of confluence of Hay and Beaver creeks, on Old Highway 85 or County Road 9, ca 20 air mi S of Newcastle; ca 4 air mi N of Niobrara County.
Rocky hill with Bouteloua curtipendula and B. gracilis. Phenology: flowering.
Accession: RM (unaccessioned)

Bouteloua curtipendula var. curtipendula (2003)
POACEAE
Bouteloua curtipendula (Michx.) Torr. var. curtipendula
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills N of confluence of North Fork Duck Creek and Duck Creek, off dirt road to Dickinson Ranch, ca 39 air mi NNE of Gillette; ca 39 air mi NNW of Moorcroft.
Slopes forming ravine in silver sagebrush grassland. Phenology: flowering.
Peter J. Ebertowski, 5883. 7/3/2003.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: tributary of Skull Creek, E of Sunquist Draw, on County Road 14, ca 13 air mi ESE of Upton; ca 15 air mi NE of Newcastle.
Grassy slope with Stipa comata and Schizachyrium. Phenology: flowering.
Peter J. Ebertowski, 6149. 7/7/2003.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Turner Creek, on Forest Road 914, ca 16 air mi NW of Newcastle; ca 12 air mi ESE of Upton.
Rocky slope with little bluestem, eastern blue and sideoats gramas. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: West Fork Duck Creek, on two-track off Forest Road 903, ca 34 air mi NNE of Gillette; ca 34 air mi NNW of Moorcroft.
Slope of broken rock and sandy soil, with yucca and little bluestem. Phenology: flowering & fruiting.
Peter J. Ebertowski, 7572. 8/2/2003.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Little Powder River, on Wyo Hwy 59, ca 11 air mi N of Gillette; ca 30 air mi NW of Moorcroft.
Scoria hill with ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills ca 1 mi E of Dry Fork Spring Creek, on two-track road off York or Forest Road 900, ca 29 air mi NNE of Gillette; ca 31 air mi NW of Moorcroft.
Little bluestem grassland. Phenology: fruiting.

U.S.A., Arizona, Coconino County: Kaibab National Forest: Coconino Plateau: along small canyon leading to Coconino Wash, ca 4 air mi S of South Rim Grand Canyon, ca 8 air mi ESE of Tusayan; ca 55 air mi NNW of Flagstaff.
Open ponderosa pine forest on limestone. Phenology: flowering.
with James F. Fowler

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: buds.
with James F. Fowler, Brian Reif

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.
Annotations:
1. Bouteloua curtipendula (Michx.) Torr. var. curtipendula
Annotated by B. E. Nelson.
with James F. Fowler

U.S.A., New Mexico, Colfax County: NM Hwy 72, 4 road mi E of I-25 (milepost 4).
Elev. 6700 ft.
Grassy roadside. Phenology: flowering.
Accession: RM 960745, Barcode: RM0217012

U.S.A., New Mexico, Union County: NM Hwy 325, ca 5 road mi NNE of Capulin.
Elev. 7000 ft.
Pinyon-juniper woodland and grassland. Phenology: flowering & fruiting.
Accession: RM 960743, Barcode: RM0216992

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.
Accession: RM 960744, Barcode: RM0217011

U.S.A., Arizona, Yavapai County: Coconino National Foerst: Beaver Creek watershed, Stoneman Lake Road, 1 mi E of Ariz Hwy 79.
Juniper-pinyon pine forest. Phenology: flowering & fruiting.
Accession: USFS 415143

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 19 air mi N of Crawford and 1.5 mi W of NE Hwy 71 and NE Hwy 2.
In silt soils and rock beds. Phenology: flowering & fruiting.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 27.5-28 air mi NW of Crawford.
On ridge of rockand sand. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 17 air mi SE of Hermosa and 12 air mi ESE of Fairburn and 0.5 mi E of County Road 19 near French Creek.
On side slopes and in drainages of creek with sand and gravel soil. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 20.5-21 air mi SSW of Wall and 0.5 mi E of Forest Road 7133.
On east and south faces of revegetated and stabilized sand bluffs. Phenology: flowering & fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 8.5-9 air mi WSW of Kadoka and 0.5 mi N of County Road CH6.
Elev. 2300 ft.
Badland grassland, clay soil. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 17 air mi SSE of Hermosa.
On ridge of rock and slopes and upland of clay soil. Phenology: flowering & fruiting.

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 13 air mi NE of Hermosa and 4-4.5 mi W of County Road 121.
Clay water catchment site. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 16.5 air mi ENE of Hermosa and 0.5 mi W of County Road 121.
On butte and butte slopes of clay and gravel soil. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 18.5 air mi ENE of Hermosa and 1.5 mi E of County Road 121.
On typical clay badland soils. 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, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 12.5-13 air mi WNW of Edgemont immediately E of Wyoming/South Dakota stateline. North of the Cheyenne River.
In silt and revegetated, stabilized banks of sand north of the river. Area is severely overgrazed. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.
Butte rock slopes and top. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi WNW of Edgemont; Moss Agate Creek.
In side drainage of creek. Side slopes of rock and gravel. Phenology: flowering & fruiting.

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

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 10 air mi NW of Crawford and 3/4 mi N of Sand Creek Road.
On buttes of clay soil. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 11.5 air mi ESE of Smithwick and 1.5 mi S of County Road 1.
On buttes and badlands; soils are typical badland clay. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 10.5-11 air mi ENE of Smithwick.
On ridge slumps of silty soils in Yucca glauca plant community. Phenology: flowering & fruiting.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 14.5 air mi NW of Crawford on Hudson-Meng Bison Bonebed Trail, 0.5 mi SW of Toadstool Geologic Park.
Soils are heavy white clay below with clay sand mix at top of "toadstool" geologic formations. Phenology: flowering & fruiting.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 12.5-13 air mi NW of Crawford.
On rocky ridge and side slopes. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 21 air mi ENE of Hermosa and 0.5 mi E of Forest Road junction 7068 and 7067.
On rock beds and side slopes of shale and silt. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7.5 air mi W of Scenic, near Spring Draw.
On sand bluffs overlooking draw. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 2 air mi W of Edgemont and 0.5 mi N of U.S. Hwy 18.
On mesa top and slopes of rock and gravel. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 18 air mi SSW of Edgemont.
In alkali draw of silt. Phenology: flowering & 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, Custer County: Buffalo Gap National Grassland and Vicinity: ca 15.5-16 air mi SSE of Hermosa, French Creek.
Along banks of creek. Soils are silty and mucky in creek bottom. Phenology: flowering & fruiting.
with Steve Popovich

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

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 15-15.5 air mi SSE of Hermosa and 0.5 mi NW of Forest Road 7064.
In cattle exclosure around spring seep in the hillside. Area is floristically diverse and permanently protected from grazing. Phenology: flowering & fruiting.

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 6-6.5 air mi NW of Crawford, Little Cottonwood Creek.
In creek of actively flowing water.. Phenology: flowering & fruiting.

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 21 air mi SW of Edgemont.
Silver sagebrush plant community in silty soils of ephemeral draws. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 15.5-16 air mi SSE of Hermosa along French Creek.
Creek banks with moist clay and silt soils. Phenology: flowering & fruiting.

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

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

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

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

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

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

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

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 1.5 air mi SSW of Scenic.
In badlands floodplain, soils are deep heavy white clay. Phenology: flowering.

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

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

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

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi ESE of Fairburn and 1/4 mi due S of County Road 18 at French Creek.
On north and east facing slopes of creek, soils are rock and gravel. Phenology: flowering.
with Don Hazlett

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi ENE of Hermosa.
In agate/rock bed, soils interstices are clay. Phenology: flowering.

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

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

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi NE of Hermosa.
In rolling prairie uplands, soils are clay loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6.5 air mi SW of Scenic in Indian Creek.
Soils are clay overlain with gravel and sand. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7 air mi SW of Scenic in Indian Creek.
In deep cut side drainage of the creek, soils are clay overlain with gravel. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 4 air mi SW of Scenic in Indian Creek.
In deep cut side drainage, soil is clay overlain with gravel. Phenology: flowering.

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

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

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

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 11.5 air mi SE of Fairburn, Cheyenne River.
On bluffs overlooking river, south aspect, soils are sand. Phenology: flowering.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 18 air mi ESE of Fairburn, Cheyenne River.
On sand bluff overlooking the river, south aspect, soil is sand. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 2 air mi NE of Cactus Flats in Big Buffalo Creek.
Wooded draw exclosed from grazing, soils are loam and loamy clay. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 2 1/4 air mi WSW of Kadoka, Kadoka Lake.
On the shores near and around lake, soils are clay loam. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7 air mi NW of Cactus Flats in Big Foot Creek.
Soils are clay loam. Phenology: flowering.

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: near the White River, ca 9 air mi SW of Kadoka.
In large deep cut stream channel emptying into the river, soils are clay. 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.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 17 air mi SSE of Wall in Conata Basin.
At site of large reservoir, soils are white mucky clay. Phenology: flowering.
with David Jones

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

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 16.5 air mi SW of Kadoka.
In a deep-cut stream channel in badlands floodplain. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi SW of Kadoka.
In wetland, soils are clay. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: Rancho del Rio Grande Grant: along Rio Chiquito on Forest Road 437, ca 2.5 air mi SE of Ranchos de Taos.
Rocky, southerly-facing pinyon/juniper slope. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: NM Hwy 75, ca 1 air mi N of Dixon.
Pinyon/juniper woodland. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Devisidero Loop Trail from Taos Canyon to Devisidero Peak, ca 1 air mi E of Canyon.
Pinyon/juniper woodland and south aspect slopes. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: NM Hwy 111, Canada de la Cueva, ca 1.5 air mi S of La Madera.
Arroyos and mesa top with pinyon/juniper and Artemisia tridentata. Phenology: flowering.

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.
Pinyon/juniper woodland. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Jicarilla Ranger District: Forest Road 309, Laguna Seca Mesa near Cabresto Electronic Site, W of Dulce.
Pinyon/juniper woodland with rocky sandstone slopes, grassy openings with Bromus tectorum. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Jicarilla Ranger District: Forest Road 209A, Anselmo Bench, N of Cabresto Canyon, W of Dulce.
Mesa top with Cercocarpus, chamisa, burned and bulldozed with gas pads. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Cerrito Blanco, ca 1.5 air mi NW of Abiquiu.
Badlands with rabbitbrush flats and juniper mesas. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: 0.2 air mi W of Cerro to top of Guadalupe Mountain.
Pinyon/juniper to top with Douglas fir/ponderosa pine. Phenology: buds.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: northwest spur ridge off Cerro Azul just off Forest Road 556, ca 7.5 air mi E of Ojo Caliente.
Quartzite-schist mountain on sandy to sandy-clay plains. Phenology: fruiting.

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: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: west of U.S. Hwy 84 and Canjilon Creek, ca 1 air mi NNE of Echo Amphitheater Recreational Site, ca 8 air mi SSE of Canjilon.
Pinyon/juniper woodland on Chinle formation sandstone and shale. Phenology: buds.

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.
Pinyon/juniper woodland with Gutierrezia sarothrae, Hilaria jamesii, and Opuntia polyacantha. Phenology: buds.

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.
Pinyon/juniper woodland with Artemisia tridentata and Gutierrezia sarothrae. Phenology: buds.

U.S.A., New Mexico, Rio Arriba 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.
Pinyon/juniper woodland with Pinus ponderosa in lower drainage areas. Phenology: buds.
with Cheryl Archuleta

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Francisco Montes Vigil Grant: ca 1 air mi E of NM Hwy 76, ca 2 air mi NE of Truchas, just S of Canada de las Entranas, on Forest Road 155.
Thinned ponderosa pine forest with Juniperus scopulorum and pinyon/juniper intermixed on southwest exposure. Phenology: flowering.

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, 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: buds.

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. Phenology: buds.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Juan Jose Lobato Grant: Forest Road 23, ca 1 air mi E of junction of U.S. 84 and NM Hwy 96, ca 2 air mi E of east high waterline of Abiquiu Reservoir, ca 6 air mi NW of Abiquiu.
Pinyon/juniper woodland on sandstone. Phenology: buds.

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. Phenology: buds.

U.S.A., Colorado, Mesa County: [location and coordinates withheld]
Dry creek bed and canyon bottom with pinyon, juniper, and single leaf ash. Phenology: flowering & fruiting.
with Laura Cosse
Accession: (unaccessioned)

U.S.A., Colorado, Mesa County: [location and coordinates withheld]
Along dry creek bed with pinyon, juniper, and occasional Populus. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Wyoming, Goshen County: Wetlands and Adjacent Areas: Newell Bay, Guernsey Reservoir, ca 2 air mi NW of Guernsey.
Dry rocky slopes. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Wetlands and Adjacent Areas: Black Canyon Point, Guernsey Reservoir, ca 3 air mi NW of Guernsey.
Rocky dry slopes. Phenology: flowering.

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Redwater Creek, ca 2 air mi W of Beulah; ca 14 air mi NE of Sundance.
Dry, sandy uplands. Phenology: flowering.

U.S.A., Wyoming, Weston County: Wetlands and Adjacent Areas: seeping spring, ca 7 air mi NE of Newcastle.
Dry, sandy Pinus forest. Phenology: flowering.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Dry, wooded uplands. 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.
Roadside. Phenology: flowering.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 83 E of Lower Colonias in vicinity of Ruidoso Ridge, 7 air mi ESE of Pecos. From Forest Road 83/203 junction SW on Forest Road 83 0.8 air mi.
Roadside through mixed conifer forest and skirting sedimentary rock bands on descent of exposed ridge. 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. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: intersection of NM Hwy 485 and NM Hwy 4.
Roadside and river margin. Phenology: fruiting.

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: 14 air mi NNE of Espanola on U.S. Hwy 285.
Roadside. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Arroyo Montasa canyon, 1 air mi up canyon from junction with the Rio Grande River and across river from Bandelier National Monument. W 0.3 air mi to N35.716 W106.256 at pour off.
Riparian bottom; steep, metamorphoic canyon walls with juniper . Phenology: flowering.

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, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Anton Chico Grant: vicinity of a tributary of Arroyo Leguino, ca 1.3 air mi E of La Mesita, ca 20.5 air mi S of Las Vegas.
Sandy slopes and flats in juniper/grassland. Phenology: flowering.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Anton Chico Grant: top of Mesita de los Ladrones, ca 8-8.5 air mi E of Villanueva; ca 21-22 air mi S of Las Vegas.
Sandstone pavement areas with scattered ponderosa pine and oak thickets. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Sierra Nacimiento: Joaquin Canyon on the north side of Mesa Venado, ca 0.5 air mi W of Rio Guadalupe, ca 6 air mi W Jemez Springs; ca 19.5 air mi SSE of Cuba.
Rocky, open young ponderosa pine forest with scattered pinyon and juniper. 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.
Grassy mesa, Bouteloua dominant, with scattered pinyon and juniper. 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. N35.2365 W105.2558 to NE 0.5 air mi along Pecos River.
River bottom, mostly juniper with Russian olive and narrowleaf cottonwood. 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. Phenology: flowering.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Jemez Mountains: Caja del Rio Plateau: County Road 77 (Buckman Road) at Rio Grande River and Buckman, 2 air mi due E of White Rock.
Juniper hills on sedimentary soils east of river. Phenology: flowering.

U.S.A., Arizona, Pima County: Santa Rita Experimental Range: 200 mi [sic] N of Forest Station.
Steep north slope: scarce on heavy red clay: with Bouteloua filiformis and Bouteloua chrondrosoides. Phenology: flowering & fruiting.
Accession: USFS 415163

U.S.A., Wyoming, Niobrara County: 6 mi ENE of Mule Creek Junction.
Rocky slope with B. gracilis and Yucca.

U.S.A., Colorado, El Paso County: Manitou.
Elev. 2100 m.
Phenology: flowering & fruiting.
with E. S. Clements
Accession: RM 33959

U.S.A., Colorado, Bent County: Rule Creek.
Phenology: fruiting.
Annotations:
4. Bouteloua curtipendula (Michx.) Torr.
Annotated by Kandres Halbrook on 5//2012.
3. Bouteloua curtipendula (Michx.) Torr. var. curtipendula
Annotated by F.W. Gould & Z.J. Kapadia in 1926.
2. Bouteloua curtipendula (Michx.) Torr.
Annotated by C. L. Porter in 1940.
Accession: RM 165869

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: near Old Abreu Lodge.
Occasional along roadside. Phenology: fruiting.
Accession: RM 299674

U.S.A., Wyoming, Albany County: Laramie Range: Soldier Creek, ca 20 air mi SW of Douglas.
East facing mountain slope with granite outcrops. Phenology: fruiting.
with J. Brondum and T. McGowan
Accession: (unaccessioned)

U.S.A., Wyoming, Converse County: Laramie Range: along Poison Lake or County Road 4 about halfway between Poison Lake and Wagon Hound Creek, ca 12.5 air mi SW of Douglas.
Rocky flats with patches of mountain mahogany. Phenology: fruiting.
Annotations:
1. Bouteloua curtipendula (Michx.) Torr. var. curtipendula
Annotated by B. A. Packer.

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: northeast corner of pasture #10.
Sandy loam to compact adobe; with grama, 3-awn and soapweed. Phenology: fruiting.
with C. L. Forsling
Accession: USFS 418092

U.S.A., New Mexico, Catron County: Datil National Forest: Tularosa Ranger Station pasture.
North slope; fairly abundant on gravelly soil; grass type. Phenology: fruiting.

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

U.S.A., Wyoming, Goshen County: 3 mi SW of Ft. Laramie.
T26N R64W S30 SE1/4 of SE1/4 of
Stoney slope with Artemisia frigida and Dalea. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Gold Hill above Hall Creek.
Rocky slope with Artemisia nova and Elymus spicatus.

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

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Sparse pinyon-juniper-Quercus and prairie-grassland. 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.
Silty flats in open cottonwood forest. Phenology: flowering & fruiting.
Annotated by B. E. Nelson.

U.S.A., Kansas, Morton County: Cimarron National Grassland: along Cimarron River and Turkey Trail ca 4 air mi ENE of Kan Hwy 27, ca 10.5 air mi NNE of Elkhart.
Low sand dunes and sand flats along the river channel. Phenology: flowering & fruiting.
Annotated by B. E. Nelson.

U.S.A., Kansas, Morton County: Cimarron National Grassland: Point of Rocks and along the Santa Fe Trail and vicinity above the Cimarron River, ca 2.5 air mi W of Kan Hwy 27, ca 7 air mi NNW of Elkhart.
Chalky cliffs, sandstone cliffs, and slopes below. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: Holt Canyon, ca 1 air mi N of Oklahoma, ca 12.5 air mi SW of Campo.
Steep easterly-facing slope with sandstone cliffs, pavement, and large blocks. Phenology: flowering & fruiting.
with Bernadette Kuhn

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 3/4 air mi W of County Road 25 at the east edge of the Shale Hills, ca 17 air mi SSW of La Junta.
Clayey slopes or benches with limestone chiprock. Phenology: flowering & fruiting.
with Bernadette Kuhn

U.S.A., Colorado, Baca County: Comanche National Grassland: just N of the North Fork Cimarron River, ca 15 air mi SSE of Vilas.
Shortgrass prairie dominated by Buchloë dactyloides and Bouteloua spp. Phenology: flowering & fruiting.
Annotated by Bernadette Kuhn.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 13 air mi SE of Vilas.
Shortgrass prairie dominated by Buchloë dactyloides and Bouteloua sp. Phenology: flowering.
Annotated by Bernadette Kuhn.

U.S.A., Kansas, Morton County: Cimarron National Grassland: at Recreation Area along the Cimarron River, 9.5 mi NNE of Elkhart.
Cottonwood gallery forest along the river with large stands of Tamarix; sandy soil. Phenology: flowering.
Annotated by Bernadette Kuhn.

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 29 air mi SW of La Junta.
On rocky hills with limestone outcrops. Phenology: flowering & fruiting.
with B. E. Nelson

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 10.5 air mi SW of Springfield.
Shortgrass prairie dominated by Bromus japonicus and Elymus sp. Phenology: flowering & fruiting.
with B. E. Nelson

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

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

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 9 air mi SE of La Junta.
Rocky prairie with scattered Juniperus monosperma Phenology: flowering & fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland: Shale Hills, ca 17 air mi SSW of La Junta.
Rough breaks with dense limestone chip. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: North Picket House Draw, 7 air mi SE of Campo.
Shortgrass praire dominated by Buchloë dactyloides and Bouteloua sp. Phenology: flowering.

U.S.A., Colorado, Baca County: Comanche National Grassland: Carrizo Work Center, ca 7.5 air mi S of Springfield.
Old home site surrounded by shortgrass prairie; scattered Juniperus and Ulmus. Phenology: flowering & fruiting.

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

U.S.A., Colorado, Las Animas County: Comanche National Grassland: Potato Butte, ca 14.5 air mi SE of Kim.
Small pools below butte; dominated by Rhus aromatica, Bouteloua spp., and Elymus spp. Phenology: flowering & fruiting.
with Kelly Kindscher

U.S.A., Colorado, Las Animas County: Comanche National Grassland: Cottonwood Creek near Potato Butte, ca 14.5 air mi SE of Kim.
Wet area along creek and below butte. Phenology: flowering & fruiting.
with Kelly Kindscher

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: fruiting.
with Joe Rankin.

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 19 air mi SW of La Junta.
Prairie with rocky upland and low spring. 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: flowering & fruiting.
with Joe Rankin

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 5.5 air mi NNE of Elkhart.
Shortgrass prairie; overgrazed pasture. Phenology: flowering & fruiting.
with Joe Rankin

U.S.A., Kansas, Morton County: Cimarron National Grassland: Cimarron National Grassland Recreational Area: ca 10 air mi NE of Elkhart.
Around pond in recreational area dominated by Helianthus annuus, Ambrosia sp., and Populus deltoides. Phenology: flowering & 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.

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 13.5 air mi NE of Elkhart.
Small rocky knob of prairie hill dominated by Bouteloua spp., Bothriochloa laguroides, and Aristida purpurea. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 15 air mi NE Elkhart.
Sandsage prairie with heavy cover of Yucca glauca. Phenology: fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland: Higbee Canyon, ca 14 air mi SSE of La Junta.
Canyon dominated by Bouteloua gracilis, Bouteloua curtipendula, and scattered Populus deltoides. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: 5 air mi E of Campo on County Road J.
Sandsage prairie. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: 5.5 mi W of Campo on County Road J.
Grazed pasture with lone Morus rubra. Phenology: flowering & fruiting.

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

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 12 air mi SE of Springfield.
Sandsage prairie. Phenology: 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: flowering & fruiting.
with Quinn Long, Jennifer Moody-Weiss, and Gianna Short

U.S.A., Colorado, Las Animas County: Comanche National Grassland: along Purgatoire River, ca 29 air mi SSW of La Junta.
Along river on rocky upland slope with scattered Juniperus monosperma and Yucca glauca. Phenology: flowering & fruiting.
with Quinn Long, Jennifer Moody-Weiss, and Gianna Short

U.S.A., Colorado, Otero County: Comanche National Grassland: near base of Shale Hills, ca 16.5 air mi S of La Junta.
Rocky prairie with Helianthus annuus, Atriplex, and Aristida purpurea. 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 & fruiting.

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: fruiting.
with Amy Tomson

U.S.A., Colorado, Baca County: Comanche National Grassland: Carrizo Creek, Carrizo Canyon, ca 29 air mi SW of Springfield.
Near picnic area along creek. Hillside and lush creek banks. Uplands dominated by Bouteloua spp. and scattered Rhus aromatica. Creek banks with Salix exigua and Typha. Phenology: flowering & fruiting.
with Amy Tomson

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 25.5 air mi SW of Springfield.
Rocky hillside with limestone at surface; grazed with abundant Melilotus albus. Phenology: fruiting.
with Amy Tomson

U.S.A., Colorado, Las Animas County: Comanche National Grassland: Purgatoire River Valley, ca 26 air mi SSW of La Junta.
In river valley dominated by Bouteloua sp, Opuntia sp., and scattered Juniperus sp. Phenology: fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: between Bravo Canyon and Bent Canyon, ca 29 air mi SSW of La Junta.
Along canyon dominated by Juniperus monosperma, Bouteloua curtipendula, and Cercocarpus montanus. Phenology: fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: between Bravo Canyon and Purgatoire River, ca 29.5 air mi SSW of La Junta.
Along base of sandstone outcrops, dominated by Juniperus monosperma, Bouteloua curtipendula, and Cercocarpus montanus. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: at dinosaur tracks along Purgatoire River, ca 25.5 air mi S of La Junta.
Area dominated by Salix exigua, Cyperus sp., and Bromus japonicus. Phenology: flowering & fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland: Shale Hills near Packers Gap, ca 17.5 air mi SW of La Junta.
Hills dominated by Stipa sp., Bouteloua curtipendula, and Rhus aromatica. Phenology: fruiting.

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.

U.S.A., Colorado, Otero County: Comanche National Grassland: N of Lower Sheep Canyon, ca 26 air mi SW of La Junta.
Rocky uplands near canyon. Phenology: fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: Bravo Canyon, ca 30 air mi S of La Junta.
Sandstone canyon with Ptelea, Cercocarpus, and Gutterizia. Phenology: fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 15 air mi S of La Junta.
Weedy canyonside dominated by Juniperus monosperma. 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.
Annotated by Brian Elliott.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: junction of U.S. Hwy 160 and the Villegreen Road, ca 9.5 ai WSW of Kim; 6 mi S of Villegreen.
Roadside in shortgrass prairie. Phenology: fruiting.
Annotated by Brian Elliott.

U.S.A., Colorado, Baca County: Comanche National Grassland: at junction of County Road M and County Road 13, ca 16 mi S of Pritchett.
Shortgrass prairie and roadside, sandy soil. Phenology: fruiting.
Annotated by Brian Elliott.

Limestone shale hills with scattered Juniperus virginiana. Phenology: fruiting.

U.S.A., Colorado, Otero County: Comanche National Grassland and Vicinity: along Colo Hwy 350, ca 3.7 air mi SW of Timpas.
Limestone and shale roadcut, dominated by Oryzopsis hymenoides. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Dakota sandstone, dominated by Stipa and Elymus elymoides. Phenology: flowering.

U.S.A., Colorado, Morton County: Cimarron National Grassland: at Prairie Chicken Viewing area, ca 4 air mi NW of Elkhart.
Sandsage prairie dominated by Yucca glauca and Cucurbita foetidissima. Phenology: fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: along Forest Road 627, ca 0.5 air mi N of Cimarron River, ca 10.5 air mi NNE of Elkhart.
Rolling sandsage prairie, dominated by Yucca glauca and Artemisia. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: along County Road 10, ca 2.5 air mi NE of Elkhart.
Shortgrass prairie dominated by Bothriochloa laguroides. Phenology: flowering.

Rocky prairie and adjacent ditch dominated by Bothriochloa laguroides. Phenology: flowering.

U.S.A., Colorado, Baca County: [location and coordinates withheld]
Pasture dominated by Cirsium undutatum and Bothriochloa laguroides. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 14 air mi SW of Springfield.
Windmill in center of section, pature dominated by Opuntia and Buchloë dactyloides. Phenology: flowering.

U.S.A., Colorado, Baca County: Comanche National Grassland: abandoned Kirkwell Post Office, ca 16 air mi SSW of Pritchett.
Pasture dominated by Bothriochloa laguroides, Hilaria jamesii and Buchloë dactyloides. Phenology: flowering & fruiting.

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

U.S.A., Colorado, Otero County: [location and coordinates withheld]
Dominated by Melilotus officinalis, near large Ulmus. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland: on County Road 30, ca 5 air mi S of Andrix; ca 9.5 air mi ESE of Kim.
Prairie pasture dominated by Aristida purpurea and Buchloë dactyloides with scattered Ipomoea leptophylla. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Sandy, shortgrass prairie, scattered Mentzelia and Ipomoea amid large clumps of Bothriochloa laguroides. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Comanche National Grassland and Vicinity: along east side of County Road 201, ca 5 mi S of Kim.
Canyon of Dakota sandstone with patches of Mentzelia. 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: ca 14 air mi SSW of Pritchett.
Stock tank, overflowing into open pool, dominated by Amaranthus and Polygonum. Phenology: flowering & fruiting.

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

U.S.A., Colorado, Baca County: Comanche National Grassland: E of East Carrizo Creek, ca 11 air mi S of Utleyville; ca 20 air mi SW of Pritchett.
Dakota sandstone canyon dominated by Rhus aromatica, Pinus edulis, and Juniperus monosperma. 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., Kansas, Morton County: Cimarron National Grassland: along North Fork Cimarron River, ca 13.5 air mi W of Richfield.
Roadside with Ulmus stand. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: ca 2.5 air mi S of Rolla.
In sandsage prairie, along two track leading to well. Phenology: flowering & fruiting.

U.S.A., Kansas, Morton County: Cimarron National Grassland: along Cimarron River, ca 7.5 air mi SE of Richfield.
Sandsage prairie along the river. Phenology: flowering & fruiting.

Rocky uplands with Dakota sandstone. Phenology: fruiting.
with Doug Sedoris

Top of canyon with shale outcrops. Phenology: flowering & fruiting.

Lush creek banks dominated by Typha and Scirpus. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: 1/4 mi S of County Road C, along two track, ca 13.5 air mi SE of Campo.
Sandsage prairie, dominated with Tribulus terrestris as ground cover. Phenology: flowering & fruiting.

U.S.A., Colorado, Baca County: Comanche National Grassland: at intersection of County Road 25 and two-track road, ca 3 air mi SW of Campo.
Blowouts and sandy rolling hills dominated by Artemisia filifolia and Yucca glauca. Phenology: flowering & fruiting.

U.S.A., Colorado, Otero County: [location and coordinates withheld]
At spring, Dakota sandstone canyon dominated by Prunus, Ribes, and Rhus. Phenology: flowering & fruiting.
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: flowering & fruiting.
with Don Hazlett

Dry, gravelly creek bed below dominated by Aster falcatus, Populus, and Grindelia; Dakota sandstone canyon walls above with scattered Rhus aromatica and Juniperus monosperma along canyon walls. Phenology: flowering.

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 0.5 air mi N of David Canyon Road, along two-track road, ca 16 air mi S of La Junta.
On top of shale hills dominated by Mentzelia and Artemisia. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: western-most hill in the Cedar Hills, on east side of No. 2 Lake; 9 air mi E of Cimarron.
Small hill of eroding shale and sandstone capped by conglomerate, with scattered Juniperus monosperma and Cercocarpus montanus, surrounding flats dominated by Cylindropuntia imbricata, Opuntia sp., and short-grass prairie. Uncommon and scattered, spikelets all nodding to one side of inflorescence. Photographed. Phenology: flowering.
Annotated by Ben Legler on 8/30/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: rocky promitory on north side of Ponil Creek 3.2 air mi E of Cimarron.
Gently sloping rocky hill on shortgrass prairie, with sparse herbaceous vegetation and scattered Rhus aromatica var. trilobata, Cercocarpus montanus, Cylindropuntia imbricata; dry soil. Tufted; common on rocky slopes. Phenology: flowering.
Annotated by Ben Legler on 8/30/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small rise on north side of Van Bremmer Creek 0.3 air mi SW of junction with Vermejo River; 3.7 air mi SE of Colfax.
Small, rounded, eroding shale slope in short-grass prairie with sparse herbaceous cover. Rhizomatous, forming loose patches; common. Phenology: flowering & fruiting.
Annotated by Ben Legler on 8/30/2008.

U.S.A., Colorado, Las Animas County: Vermejo Park Ranch: steep bluff on west side of Long Canyon diagonally opposite from mouth of Joe Baker Canyon; 0.65 air mi N of New Mexico and 16 air mi SW of Raton.
37° 0' 10.8" N, 104° 42' 9" W; WGS 84, uncertainty 5 m., GPS reading
Steep eroding slope of sandstone and fine coal scree, with scattered shrubby Quercus spp., Cercocarpus montanus, Pinus edulis and P. ponderosa. Formong loose patches in scree; common. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small wash on west side of Gardiner Road (County Road 20A) 0.4 mi N of junction with NM Hwy 555; 3.0 air mi SW of Raton.
Dry sandy wash, still moist from recent rains, among pinyon-juniper woodland, with Rhus trilobata, Quercus ×undulata, Helianthus annuus. Spikelets pendant; stems in loose tufts; occasional in sand in wash. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: SE end of ridge between Ashenfelder Canyon and Beardon Canyon; 1.15 air mi SSW of Koehler townsite.
Steep rocky slope with Pinus edulis, Juniperus monosperma, Cercocarpus montanus, Quercus ×undulata. In loose tufts; frequent. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: south-facing slope on north side of Vermejo Park, 2.9 air mi NW of Casa Grande and 1.1 air mi ESE of Bartlett Mine.
Steep loose rock slide and fine scree, with scattered Pinus edulis, Cercocarpus montanus, Bromus richardsonii, other grasses. In loose clumps; occasional. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: old strip mine at junctions of York Canyon and Road Canyon near end of NM Hwy 555; 3.5 air mi SE of Casa Grande.
Old coal strip mine adjacent to old mine administration building, now revegetated. Robust plant forming very large clump in moist soil; uncommon. Phenology: flowering.

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

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 160, ca 0.5 mi E of junction with Colo Hwy 350. Center of section.
Prairie. Phenology: flowering & fruiting.

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

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: 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 Spikes nodding; stems scattered in loose patches in bare rocky soil. Specimen GPS: 36.687298, -104.868752. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: crest of small hill 0.3 air mi S of the Vermejo River and 1.2 air mi E of I-25; 3.6 air mi S of Maxwell.
Rocky knoll on prairie, with Artemisia bigelovii, Eriogonum jamesii var. jamesii, and Bouteloua curtipendula. Spikes nodding; stems in loose patches; frequent. Specimen GPS: 36.485477, -104.555244. Phenology: flowering.

U.S.A., Colorado, Las Animas County: Vermejo Park Ranch: south side of unnamed ridge on north side of Left Hand Fork Martinez Canyon 1.9 air mi up canyon from its junction with Right Hand Fork; 15.8 air mi WSW of Trinidad.
Dry southwest facing slope with Pinus edulis, Quercus ×undulata, Cercocarpus montanus, Bouteloua curtipendula, and Muhlenbergia montana. Short-rhizomatous, forming loose clumps; common. Specimen GPS: 37.015701, -104.7631. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: ridge between Gachupin Canyon and the Vermejo River 2.6 air mi NW of mouth of Gachupin Canyon.
Revegetated coal strip mine among hills dominated by Pinus edulis; mine surface dominated by Atriplex canescens var. canescens, Salsola spp., and Bouteloua gracilis. In loose tufts with short rhizomes; common. Specimen GPS: 36.804661, -104.900131. Phenology: flowering.

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. Rhizomatous; abundant throughout area. Specimen GPS: 36.578171, -104.812515. Phenology: flowering.

U.S.A., New Mexico, Harding County: Kiowa National Grassland: Forest Road K126, E of Mills.
Elev. 1792 m.
Shortgrass prairie on hilly ground. Phenology: fruiting.
Michael Schiebout, 752. 7/12/2004.

U.S.A., New Mexico, Union County: Kiowa National Grassland: Forest Road K37, 5 1/4 air mi ESE of Clayton.
Elev. 1479 m.
Sandy soil. Phenology: flowering & fruiting.
Michael Schiebout, 160. 6/29/2004.

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: I-25 and Burnt Mill Road (County Road 246).
Grassland and roadcut. Phenology: flowering & fruiting.
with Brian Elliott

Bouteloua curtipendula var. curtipendula ()
U.S.A., North Dakota, no county County:
Phenology: flowering & fruiting.
Annotated by Frank W. Gould in 1962.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: vicinity of Cow Creek Camp/ Picnicground on Cow Creek ca 5.5 air mi W of Fort Howes Work Center, ca 25 air mi S Ashland.
Forb meadow on top of the ridge. Phenology: flowering & fruiting.
Accession: USFS 889430, Barcode: USFS0056147

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: near the head of Schleichart Draw ca 0.5 air mi W of Riley Pass, ca 18 air mi N of Buffalo.
Sandy slopes below the sandstone cliffs. Phenology: flowering.
Accession: USFS 889429, Barcode: USFS0056146

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: at the mouth of Spring Canyon and just below at the northwest base of Rustler Ridge, ca 20.5 air mi SE of Ekalaka.
Open slope and ponderosa pine savannah. Phenology: flowering & fruiting.
Accession: USFS 889428, Barcode: USFS0056145

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: Iron Spring and vicinity and down stream, ca 18 air mi SE of Ekalaka.
Sandy slopes around large sandstone outcrops. Phenology: flowering & fruiting.

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

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

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in and around Seymour Reservoir, ca 0.5 air mi N of Taylor Creek or Forest Road 4127, ca 7 air mi SE of Fort Howes and ca 27 air mi SSE of Ashland.
About reservoir. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in the vicinity of Red Bluff Spring, just W of Forest Road 3117, ca 5 air mi SSW of Mill Iron and ca 16.5 air mi ESE of Ekalaka.
East-facing rocky slope with mix of ponderosa pine, green ash, and hardwood shrubs. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: Cook Mountain Hiking and Riding Area: in the vicinity of Cliff Spring and areas SE, W of Forest Road 4772, ca 9 air mi NE of Ashland.
Grass-dominated rocky slope. Phenology: flowering.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just NW of unnamed 4WD road ca 1.5 air mi SW of The Breaks Coulee, ca 15 air mi NE of Ashland.
Ponderosa pine and grass-dominated draw. Phenology: flowering & fruiting.
Accession: (unaccessioned), Barcode: USFS0050002

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

U.S.A., South Dakota, Harding County: Custer National Forest: South Cave Hills: in and around McKenzie Gulch, S of Forest Road 3113, ca 10 air mi N of Buffalo.
Grass-dominated meadow. Phenology: flowering & fruiting.
Accession: 889526, Barcode: USFS0056918

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

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

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just E of Forest Road 3117, ca 1/4 air mi SE of Iron Spring, ca 18 air mi NW of Camp Crook, SD.
Grass-dominated meadow into wind-thrown ponderosa pine woodland. Phenology: flowering & fruiting.
with G. Gust

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Gundlach Well off of Forest Road 3103, ca 6 air mi ESE of Ekalaka.
Open grass and ponderosa pine-dominated woodland. Phenology: flowering & fruiting.
with G. Gust

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colorado City, Colo Hwy 165 N of Greenhorn Meadow Park.
Roadside, road cut, and field. Phenology: flowering & fruiting.
with Craig Freeman

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.
Roadside. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Ca 1 air mi N of Belle Creek Road, ca 4 air mi E of its junction with Mont Hwy 59, ca 19 air mi SSE of Broadus.
Grass and sagebrush-dominated grazing land with some moist draws and scattered small areas of badlands. Phenology: fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Forest Road 4516, ca 2 air mi W of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi NNW of Fort Howes.
Grass and sagebrush-dominated grazing land. Phenology: fruiting.

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

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Suicide Pass near Forest Road 4777, ca 1 air mi N of U.S. Hwy 212, ca 18.5 air mi E of Ashland.
Ponderosa pine woodland. Phenology: flowering & fruiting.

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Cabin Spring near the junction of Forest roads 4425 and 4776D, ca 1.5 air mi N of U.S. Hwy 212, ca 15 air mi E of Ashland.
Ponderosa pine woodland with grass-dominated understory. Phenology: fruiting.

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

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Cow Creek, just S of Forest Road 4095, ca 1.5 air mi W of Otter Creek Road or Mont Hwy 484, ca 2 air mi WSW of Fort Howes.
Burned hillside with rocky, sandy soils and scattered rock outcrops. Phenology: fruiting.

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

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in the vicinity of O'Dell Reservoir, ca 1 air mi ENE of Poker Jim Butte, ca 19 air mi SSW of Ashland.
Mixed sagebrush and grass-dominated steppe and hardwood draw with scattered ponderosa pine; heavily grazed and trodden on by cattle. Phenology: flowering & fruiting.

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

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

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

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

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: Tongue River Breaks Hiking and Riding Area: in the vicinity of Black Eagle Spring N of Forest Road 4023, ca 3.5 air mi WNW of Poker Jim Butte, ca 19 air mi SSW of Ashland.
Open ponderosa pine forest with grass-dominated understory. Phenology: fruiting.
Accession: USFS (unaccessioned)

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: just SE of Cottonwood Spring in vicinity of unnamed reservoir off of Forest Road 4801, ca 2.5 air mi WSW of Poker Jim Butte, ca 21 air mi SSW of Ashland.
Rocky and sandy slope above reservoir with green ash, ponderosa pine, Juniperus, and grasses. Phenology: fruiting.

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: I-25 exit 41, ca 11 mi S of Walsenburg.
Roadside. Phenology: flowering & fruiting.
with Elizabeth Mark

Pinyon-juniper with oak on sandy hillside. Phenology: flowering & fruiting.
with Elizabeth Mark

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96 at the junction of Siloam Road, ca 6 air mi E of Wetmore.
Roadside and grassland. Phenology: flowering & fruiting.
with Elizabeth Mark

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: 2.5 air mi S of Apache City, I-25 and County Road 110.
Roadside along frontage road. Phenology: flowering & fruiting.

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: Ideal Canyon, County Road 330, ca 7 air mi S of Walsenburg.
Pinyon-juniper woodland. Phenology: flowering & fruiting.

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Little Fishers Peak Mesa, 0.7 air mi NE of Lake Maloya.
Steep slope of mesa with tall vegetation. Phenology: flowering & fruiting.

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. Phenology: flowering & fruiting.

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: Roubideau Canyon, along Roubideau Creek ca 1 trail mi above junction with Potter Creek, ca 9.5 air mi SW of Delta.
Desert canyon with sparse pinyon/juniper. Phenology: flowering.
1. Bouteloua curtipendula (Michx.) Torr. var. curtipendula .

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 67, 5.5 air mi S of Florence.
Grassland with some pinyon pine and juniper. Phenology: flowering & fruiting.

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

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: Badito Cone.
Phenology: flowering & fruiting.

U.S.A., Colorado, Delta County: Uncompahgre Plateau: Escalante Canyon: Cottonwood Spring, ca 9 3/4 road mi up the canyon from the Gunnison River, ca 15.5 air mi SW of Delta.
Sandstone canyon in pinyon/juniper. Phenology: flowering & fruiting.
1. Bouteloua curtipendula (Michx.) Torr. var. curtipendula .
with Gay Austin

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., Wyoming, Platte County: Camp Guernsey: ca 0.1 km SW of North Platte River, ca 1.5 km NW of Guernsey Reservoir.
zone DMC, 512900E, 4688200N; unknown, GPS reading
75-90 deg slope; sandstone/limestone cap cliffs; sandy loam to loam; with Pinus ponderosa, Juniperus scopulorum, Koeleria cristata, Ribes, and Bromus spp. Infrequent; ascending rhizomatous perennial herb; 25 cm tall. Phenology: flowering.
Patricia P. Douglas, 376. 6/29/1995.
with Nancy E. Hastings, Rosalie M. Smith

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: along canyons and ridges off Temple Canyon or County Road 3 ca 5 air mi SW of Canon City.
In a deep dry wash with vertical rock walls. Phenology: flowering.

U.S.A., Colorado, Pueblo County: East-central Colorado: Mosquito Range to Plains: Great Plains: along Meridian Road or County Road 501 ca 0.3 mi S of El Paso County, ca 1.5 air mi E of Henkel; ca 18 air mi N of Pueblo.
In cholla grassland. Phenology: flowering.

U.S.A., Colorado, Jefferson County: East-central Colorado: Mosquito Range to Plains: Platte Canyon: along the South Platte River and adjacent canyons and ridges ca 4.7 air mi NE of town of South Platte.
zone 13
Steep, rocky slopes above the river with sandy soils in mountain mahogany and Gambel's oak. Phenology: fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Beaver Creek State Wildlife Area: along Beaver Creek and adjacent meadows, ridges and gulches off County Road 132 at terminus, ca 15 air mi NE of Canon City.
On the sandy-gravelly banks of the creek. Phenology: flowering.