Panicum virgatum (2002)
POACEAE
Panicum virgatum L.
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: buds.
Accession: RM (unaccessioned)

Panicum virgatum (2002)
POACEAE
Panicum virgatum L.
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: buds.
Accession: RM (unaccessioned)

Panicum virgatum (2002)
POACEAE
Panicum virgatum L.
U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Stinking Water Creek on County Road 31, ca 34 air mi SSW of Wright; ca 42 air mi NNW of Douglas.
Grassy creek bottom. Phenology: flowering & fruiting.
Peter J. Ebertowski, 2668. 8/5/2002.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Skull Creek on U.S. Hwy 16, ca 8 air mi NW of Newcastle; ca 18.5 air mi SE of Upton.
Roadside in sagebrush/grassland. Phenology: buds.

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Gibson Draw, ca 0.7 mi N of Antelope Creek, on Forest Road 973, ca 25 air mi SE of Wright; ca 53 air mi N of Douglas.
Creek bed and bank. Phenology: flowering.

U.S.A., Arizona, Coconino County: Coconino National Forest: above and in upper Walnut Canyon from County Road 3 (Forest Hwy 3) to the junction with Skunk Canyon, ca 4.5 - 5 air mi SE of Flagstaff.
Elev. 6720 ft.
Canyon bottom. Phenology: fruiting.
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.
Stream bank and adjacent thickets. 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.
with James F. Fowler, Brian Reif

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: northeast end of Mesa Cortado, S of U.S. Hwy 84, ca 17.5-18 air mi SE of Pagosa Springs.
Gambels oak/Rocky Mountain juniper slope with scattered ponderosa pine. Phenology: fruiting.
Annotations:
1. Panicum virgatum L.
Annotated by Jeanette Flaig.

U.S.A., Arizona, Coconino County: Tusayan National Forest.
Elev. 6500 ft.
T22N R2E
In draw. Phenology: flowering & fruiting.
Accession: USFS 424062

U.S.A., Utah, San Juan County: Glen Canyon National Recreation Area: Hardwood Hanging Garden, Alcove Canyon.
Elev. 1170 m.
zone 12, 526840E, 4125133N; Specimen Label
Hanging garden.
with C. L. May and Jon Hak
Accession: (unaccessioned)

U.S.A., Wyoming, Laramie County: Southeastern Plains: along Little Horse Creek (Harding property).
T17N R63W S4
Riparian. Phenology: fruiting.
Accession: (unaccessioned)

U.S.A., Arizona, Coconino County: Flagstaff vicinity.
Elev. 7000 ft.
T21N R7E S16
Phenology: flowering & fruiting.
Accession: RM 31819

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.
Wet draw and creek bottom. 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.
Wet draw and creek bottom. Phenology: buds.

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.
Badland grassland, 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, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 22 air mi ENE of Hermosa and 1 mi W of Swinehart Hill on Rapid Creek.
On the banks of the creek. 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, 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, 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., 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, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 22 air mi ENE of Hermosa and 1 mi W of Swinehart Hill on Rapid Creek.
On banks of creek. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 25 air mi ENE of Hermosa and 3 mi E of Swinehart Hill near the Cheyenne River.
Floodplain with clay and rock and sand soil; area is infested with Tamarisk seedlings and young trees to 1.5" dbh. 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., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 1 air mi NW of Slim Butte.
Eroded clay banks of ephemeral stream. Phenology: flowering & fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 6-6.5 air mi ESE of Cottonwood in South Fork Bad River.
Soils are silty clay. Phenology: flowering & fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 2 air mi ESE of Cottonwood in Cottonwood Creek.
Soils are silty clay. Phenology: flowering & fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 4.5 air mi SSE of Cottonwood in Cottonwood Creek.
Soils are silty clay. Phenology: flowering & fruiting.

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 & fruiting.
with Don Hazlett

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 & fruiting.

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 & fruiting.

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 & fruiting.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 19-19.5 air mi E of Fairburn, Battle Creek.
In and along shores of creek, soils are wet clay and clay with gravel sediments. Phenology: flowering & 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, Custer County: Buffalo Gap National Grassland and Vicinity: ca 10.5 air mi SE of Fairburn.
Soils are sand overlain with gravel sediments. Phenology: flowering & fruiting.

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 & fruiting.

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: fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 3.5 air mi NW of Cactus Flats.
In reservoir at the head of an ephemeral creek, soils are clay loam. Phenology: flowering & fruiting.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 4 air mi SE of Cactus Flats, Martin Dam.
In clay pan drainage of a stock dam, soils are clay. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 11.5-12 air mi ESE of Farmingdale and adjacent to west bank of Cheyenne River.
In an abandoned channel of river, soil of clay muck.. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 9 air mi SE of Farmingdale in Cole Draw.
Soils are shale and silt. Phenology: flowering & fruiting.

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

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

U.S.A., South Dakota, 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 & fruiting.

U.S.A., Utah, Grand County: San Miguel and Lower Dolores River Drainages: Dolores River Drainage: along a dry tributary of the Dolores River.
Along dry creek. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Colorado, Mesa County: San Miguel and Lower Dolores River Drainages: Unaweep Canyon: north side of West Creek below bridge.
Seep on south-facing slope with dense sedges; surrounding riparian area with Populus and Quercus; red, sandy soil. Phenology: flowering & fruiting.

U.S.A., Arizona, Santa Cruz County: West slope of Atacosa Mountains: Sycamore Canyon.
T23S R11E S14; also S23
Canyon bottom, riparian, sycamore-velvet ash-willow community. Phenology: flowering & fruiting.
Accession: RM 525906

U.S.A., Arizona, Coconino County: Coconino National Forest: ca 4 mi SE of Apache Maid.
T15N R8E S9
Sandy among rocks; found in canyon bed. Phenology: vegetative only.
Accession: USFS 424064

U.S.A., Wyoming, Platte County: 2 mi N of Wheatland.
42.0882° N, 104.9534° W; NAD 83, uncertainty 1 mi., Digital Map
Infrequent, in moist ditches. Phenology: flowering.
Accession: RM 195029, Barcode: RM0185948

U.S.A., Wyoming, Albany County: Laramie Range: in Sybille Canyon on Wyo Hwy 34.
41.7186° N, 105.47° W; NAD 83, uncertainty 2 mi., Digital Map
Dry granite hills, with Artemisia, Pinus, and Juniperus; rare, and apparently introduced along roadsides. Phenology: flowering & fruiting.
with Marjorie W. Porter
Accession: RM 278269, Barcode: RM0185947

U.S.A., Arizona, Coconino County: Coconino National Forest: Rattlesnake Tanks.
T16 R7E S17
Phenology: vegetative only.
Accession: USFS 424063

U.S.A., Wyoming, Laramie County: Pine Bluffs.
41.1764° N, 104.0815° W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!
Phenology: flowering & fruiting.
Accession: RM 10816, Barcode: RM0185930

U.S.A., Wyoming, Converse County: Glenrock, near the Platte.
Sandy flats near the Platte. Phenology: flowering & fruiting.

U.S.A., Wyoming, Platte County: Guernsey.
Sand dunes. Phenology: flowering & fruiting.

U.S.A., Wyoming: Wheatland.
Phenology: flowering & fruiting.
with Ruth A Nelson

U.S.A., Wyoming, Goshen County: Fort Laramie.

U.S.A., Wyoming, Platte County: Sybille Creek.
In large clumps on creek bottom. Phenology: flowering & fruiting.

U.S.A., New Mexico, Otero County: Lincoln (Alamo) National Forest: Weed Ranger Station pasture.
Grass-weed community in clay loam of limestone origin on a 15 degree east slope with brush; scattered abundance; distributed in Ponderosa pine community. Phenology: vegetative only.

U.S.A., Wyoming: Athol.

U.S.A., Wyoming, Platte County: E of Wheatland.
Roadside. Phenology: flowering & fruiting.
Gregory P. Hallsten, 104. 7/9/1982.
with Quentin D. Skinner, Alan A. Beetle

U.S.A., Wyoming, Goshen County: U.S. Hwy 85 N of Lingle.
Sandy roadside. Phenology: flowering & fruiting.
Gregory P. Hallsten, 373. 8/9/1982.

U.S.A., Wyoming, Platte County: North Platte River, S of U.S. Hwy 26, 0.5 road mi S of Guernsey.
42.2558° N, 104.7243° W; NAD 83, uncertainty .5 mi., Nat. Geog. TOPO!

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.
Sparse stand of Populus deltoides seedlings, Artemisia campestris, and Sporobolus cryptandrus on sandy terrace. Phenology: flowering & fruiting.
with Steve Kettler

U.S.A., Wyoming, Platte County: Camp Guernsey: 1.4 km N of U.S. Hwy 26, 2.9 km W of Wyo Hwy 270.
Elev. 1353 m.
Sagebrush grassland on rolling to slightly sloping topography of silty loam with Artemisia filifolia, Helianthus annuus, Yucca glauca, Andropogon, Calamovilfa, and Eriogonum spp. Phenology: flowering.
Patricia P. Douglas, 580. 8/25/1995.
with R. M. Smith, N. E. Hastings

U.S.A., Wyoming, Fremont County: Sand Mesa Game Bird Management Unit: near Lake Cameahwait.
T4N R5E S24

U.S.A., Wyoming, Platte County:
T26N R66W S4 NE1/4 of SE1/4
With Equisetum and Ambrosia . Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: 2 mi ENE of Casper, along North Platte River.
Moist flood plain. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: 2 mi ENE of Casper along North Platte River.
Moist flood plain along river with Juncus and Equisetum.

U.S.A., Wyoming, Laramie County: Southeast Plains: Muddy Creek E of Wyo Hwy 214, ca 1 mi S of I-80.
Dense stand of mixed Juncus and grasses on floodplain directly above the stream channel on silty soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Wyoming Game and Fish Department's Rawhide unit along the North Platte River, ca 3 air mi SE of Lingle; ca 7.3 air mi WNW of Torrington.
Dry sandy soil on an island. Phenology: flowering & fruiting.
Steve Kilpatrick, RH172. 7/22/1982.
with J. L. Robinson

U.S.A., Wyoming, Goshen County: Wyoming Game and Fish Department Rawhide unit along the North Platte River, ca 3 air mi S of Lingle; ca 7 air mi WNW of Torrington.
Cottonwood woodland in riparian habitat. Phenology: flowering & fruiting.
Steve Kilpatrick, RH235. 5/27/1982.

U.S.A., Wyoming, Laramie County: Southeast Plains: F. E. Warren Air Force Base: "Unnamed Drainage", first drainage S of high security area, between boundary to Douglas Street, on north side of Parade Road.
41.64° N, 104.8718° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Mesic meadow along banks of creek on subirrigated alluvial soil bordering scattered clumps of Salix exigua and patches of Cirsium arvense.
with Stephanie Mills

U.S.A., Wyoming, Laramie County: Southeast Plains: F. E. Warren Air Force Base: "Unnamed Drainage", first drainage S of high security area, between boundary to Douglas Street, on north side of Parade Road.
41.64° N, 104.8718° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Mesic meadow along banks of creek on subirrigated alluvial soil bordering scattered clumps of Salix exigua and patches of Cirsium arvense. Phenology: flowering & fruiting.
with Stephanie Mills

U.S.A., Colorado, Larimer County: Near Fort Collins.
Phenology: fruiting.
Accession: RMRS (unaccessioned)

U.S.A., Arizona, Coconino County: About 25 miles east of Flagstaff; Turkey Tank.
Phenology: fruiting.
Accession: RMRS (unaccessioned)

U.S.A., New Mexico, San Miguel County: Vicinity of Las Vegas.
Phenology: flowering.
Accession: RM 110456

U.S.A., Colorado, Dolores County: Trimble Springs: N of Durango.
with F. S. Earle and S. M. Tracy

U.S.A., Colorado, Jefferson County: Golden.
Phenology: fruiting.

U.S.A., Colorado, no county County:
Earl Lynd Johnston, 312. //1906.

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

Panicum virgatum ()
U.S.A., Colorado, Weld County: Evans.
River bottom. Phenology: fruiting.
Annotations:
1. Panicum virgatum L.
Annotated by Aven Nelson.
Earl L. Johnston, 523. //.

U.S.A., Colorado, Jefferson County: Semper.

U.S.A., Colorado, Weld County: Roggen.
Sand hill in moist places. Phenology: flowering & fruiting.
Annotations:
1. Panicum virgatum L.
Annotated by C. L. Porter.

U.S.A., Colorado, Weld County: Roggen.
Margins of sinks. Phenology: fruiting.
Annotated by C. L. Porter.

U.S.A., Colorado, no county County: Modern.

U.S.A., Colorado, Boulder County: Near Boulder.
Plains and foothills. Phenology: flowering & fruiting.

U.S.A., Colorado, Boulder County: Near Boulder.
Plains and foothills. Phenology: fruiting.

U.S.A., Colorado, Teller County: Rule Creek.

U.S.A., Colorado, Yuma County: Wray.
George E. Osterhout, 4196. 8/5/1909.

U.S.A., Colorado, Weld County: New Windsor.
George E. Osterhout, 486. 7/13/1894.

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

U.S.A., Colorado, Larimer County: Along railroad and E river.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest: Mestenas Mesa.
Sparse in juniper woodland on east slope. Phenology: fruiting.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: South Ponil Canyon, 1 mi E of Pueblano Camp.
Common in meadow along stream. Phenology: flowering & fruiting.

U.S.A., Colorado, Boulder County: Boulder Mountain Parks.
Pinus ponderosa woodland in openings along small mesic drainage. Phenology: flowering & fruiting.

U.S.A., Colorado, Boulder County: Near Boulder, S of campus.

U.S.A., Colorado, Boulder County: S of Boulder.
39.9351° N, 105.2344° W; NAD 83, uncertainty 5 mi., Nat. Geog. TOPO!
Mesa. Phenology: fruiting.

U.S.A., Wyoming, Platte County: [location and coordinates withheld]
Stony sandbar. Phenology: flowering.
with Jan Pollet

U.S.A., Wyoming, Converse County: Powder River Basin: ca 7.5 air mi NW of Bill, ca 39 air mi N of Douglas on Wyo Hwy 59 along Dry Fork of the Cheyenne River.
Frequent on sand bar with Xanthium and Chenopodium. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole: ca 1-1.5 mi SW of Torrington, S of golf course along North Platte River.
In sandy soil in river bottom with Heterotheca and Ambrosia. Abundant. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole: ca 9 air mi SE of Torrington, ca 1 air mi SW of Henry, Nebraska on north side of North Platte River.
In clay in the river bottom with Solidago, Spartina, and Sorghastrum. Abundant. Phenology: flowering & fruiting.

U.S.A., Wyoming, Goshen County: [location and coordinates withheld]
Roadside and fence line. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek ca 1/4 mi above Little Bear Creek on County Road 153, ca 14.3 air mi SE of Chugwater; ca 38.5 air mi SW of Torrington.
Meadows and low benches along the stream. Phenology: flowering & fruiting.

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Indian Creek off Hat Creek or County Road 64, ca 16 air mi NE of Lusk; ca 19.8 air mi NW of Van Tassell.
Dry flats in the stream bottom. Phenology: flowering & fruiting.

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.

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

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek just W of the mouth of Dater Creek and ca 4 air mi S of Castle Rocks, ca 11 air mi W of La Grange; ca 30 air mi SSW of Torrington.
Brushy, with scattered trees in stream bottom adjacent to natural hay fields. Phenology: fruiting.
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.
Cobblestone gravel bar. Phenology: flowering.
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.
Meadows and banks adjacent to a slough. Phenology: flowering.

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along the Laramie River above and below Chugwater Creek and along Chugwater Creek, ca 7.5 air mi NE of Wheatland.
Riparian benches, streambanks and adjacent meadows. Phenology: fruiting.
with Tim Chumley and Robbin Romberg

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along the Laramie River above and below Chugwater Creek and along Chugwater Creek, ca 7.5 air mi NE of Wheatland.
Riparian benches, streambanks and adjacent meadows. Phenology: flowering.
with Tim Chumley and Robbin Romberg

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Ross or County Road 31 between Dry Fork Cheyenne River and Cheyenne River Draw and along Cheyenne River Draw, ca 36 air mi NNW of Douglas.
Roadside and adjacent right-of-way. Phenology: flowering.

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Goshen Hole: along Horse Creek between County Road 180 and County Road 182, ca 1/2 air mi E of Hawk Springs, ca 19.3 air mi SSW of Torrington.
41.791° N, 104.2552° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!
Along open banks of creek, in grazed pasture and along irrigation ditches in the pasture. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Reuter Campground, ca 3 air mi NW of Sundance.
Bottom of a draw. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Grassland and disturbed soil around lake. 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 Bernadette Kuhn.

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 Bernadette Kuhn.

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

U.S.A., Colorado, Baca County: Comanche National Grassland: side canyon of Holt Canyon, ca 1.5 air mi N of Oklahoma, ca 12 air mi SW of Campo.
Lower slopes and bottom of narrow side canyon with hackberry and soapberry. Phenology: flowering & fruiting.
with Bernadette Kuhn

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., Kansas, Morton County: Cimarron National Grassland: along the Cimarron River, ca 7.5 air mi NW of Elkhart.
Tamarix thickets along dry river bed. 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: fruiting.
with Joe Rankin

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

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: fruiting.
with Amy Tomson

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: 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: 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, Baca County: Comanche National Grassland: Picture Canyon, ca 28.5 air mi SSW of Springfield.
Along creek and sandstone canyon walls. Phenology: flowering & fruiting.
with Cali Hemenway

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
At spring below canyon walls dominated by Salix ad Rumex with Quercus thicket on top of canyon walls. Phenology: flowering & fruiting.
with Darla Jackson, Lonnie Jackson

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Lush creek banks dominated by Rhus aromatica, Populus, and Tamarix. Phenology: flowering.
with Everett Jackson

U.S.A., Colorado, Baca County: Comanche National Grassland: S of County Road G, ca 12 air mi ESE of Campo.
Sandsage prairie. Phenology: flowering.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
Sandstone canyon lined with Selaginella. Phenology: flowering.
with Doug Sedoris

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

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: 0.4 air mi SE of junction of Lookout Canyon and Cerrososo Canyon; 18 air mi NNW of Cimarron.
Recently burned Pinus ponderosa forest, with numerous standing dead trees and widely scattered live trees; understory of scattered sandstone rock outcrops and sandy soil, with grasses, Heterotheca villosa, Erigeron. Rhizomatous; large patch in low sandy depression. Photographed. Phenology: flowering.
Annotated by Ben Legler on 10/18/2008.

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 lower part of East Canyon on northeast side of Crow Canyon; 2.3 air mi N of Koehler.
Dry rocky wash in canyon bottom, with adjacent grassy flats among slopes of Pinus ponderosa and Quercus ×undulata. Forming large tuft iin wash; uncommon. Photographed. Specimen GPS: 36.774609, -104.623032. Phenology: flowering.
Annotated by Ben Legler on 12/30/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along south side of the Vermejo River 0.8 air mi E of I-25; 3.2 air mi SSW of Maxwell.
River bottoms and adjacent dry washes, with Salix exigua, Helianthus annuus, and Schizachyrium scoparium; silty soil. Loosely tufted; stems over 1 meter tall; uncommon on river bank. Photographed. Specimen GPS: 36.490314, -104.559151. Phenology: flowering.
Annotated by Ben Legler on 12/30/2008.

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. Loosely tufted; uncommon on river bank. Specimen GPS: 36.509529, -104.601044. Phenology: flowering.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in and around draws SE of junction of North Divide or Forest Road 3125 and Forest Road 3145 in the vicinity of Camp Spring, ca 4.5 air mi S of Reva Gap, ca 19 air mi ESE of Buffalo.
Spring-fed draw dominated by green ash and grasses. Phenology: flowering.
Accession: USFS 889939, Barcode: USFS0054853

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.
Wet meadow. Phenology: flowering.
Accession: (unaccessioned), Barcode: USFS0050436

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Russel Spring just S of Camp Needmore off of Forest Road 3104, ca 6.5 air mi SE of Ekalaka.
Open ponderosa pine and grass-dominated woodland. Phenology: flowering & fruiting.
Accession: USFS 886446, Barcode: USFS0030450

U.S.A., South Dakota: Custer National Forest: North Cave Hills: vicinity of Nursery Draw and Fuller Canyon.
Slope 10% west; sandy loam soil. Not common. Phenology: flowering & fruiting.
Accession: USFS 424070, Barcode: USFS0068574

U.S.A., South Dakota, Fall River County: Erskine-Hot Springs.
T7S R5E S10
In crevices of exposed rocks. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: French Creek Natural Area.
T4S R6E S11 NE1/4
Steep hillside, rocky soil. Phenology: flowering & fruiting.

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

U.S.A., South Dakota, Lawrence County: Black Hills National Forest:
Slope 25%, northwest aspect; shallow clay soil; mixed prairie, oak brush; with Quercus macrocarpa, Rhus cismontana, Andropogon scoparius. Uncommon. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: South Dakota School of Mines and Technology Campus.
Clay loam soil; slope 10%, east exposure; meadow at bottom of draw; with Sppa, Rowo, Amca, Stcom. Occasional. Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: bank near steps from vistors center to parking lot.
T4S R2E S1
(Landscaped?) Phenology: flowering & fruiting.

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: U.S. Highway 16 between Jewel Cave Road and east boundary.
T4S R2E S1 NE1/4
Roadside in ponderosa pine forest. Phenology: flowering & fruiting.

U.S.A., South Dakota, no county County: Bad Lands.

U.S.A., South Dakota, no county County:
Alluvial soil. Phenology: flowering & fruiting.

Panicum virgatum ()
U.S.A., South Dakota, no county County:
In wet places. Abundant. Phenology: flowering & fruiting.
S. A. Skinner, 14. //.

Panicum virgatum ()
U.S.A., South Dakota, no county County:
Alluvial soil near moisture. Phenology: flowering & fruiting.

U.S.A., Montana, Custer County: Miles City.
Annotated by J. W. Blankinship.
J. W. Blankinship, s.n.. 7/6/1901.

U.S.A., Montana, Wibaux County: Wibaux.
Annotated by J. W. Blankinship.

U.S.A., Montana, Roosevelt County: 2 km SW of Froid.
Silt loam soil; 3% slope, west-northwest aspect; wet meadow range site that has not been grazed or hayed for at least 40 years; associated with Spatina and Carex. Phenology: flowering & fruiting.
Annotated by Blaine H. M. Mooers.

U.S.A., Montana, Custer County: US Range Livestock Experiment Station.
Draw, southwest corner of Pasture N; sandy loam soil. Phenology: flowering & fruiting.
Annotated by Jason R. Swallen.

U.S.A., Montana, Custer County: Along highway #10: Custer Flat.
Annotated by D. W. H..

U.S.A., South Dakota, Harding County: Boxelder Creek.
Flood plain. Phenology: flowering & fruiting.
Annotated by A. N..

U.S.A., South Dakota, Harding County: Boxelder Creek.
Flood plain. Phenology: flowering & fruiting.
Annotated by S. S. Visher.

U.S.A., South Dakota, Grant County: Big Stone Lake.
Bluff. Phenology: flowering & fruiting.
Annotated by L. R. M..

U.S.A., South Dakota, no county County: Sand Lake.
There is a Sand Lake located in Todd County and in Campbell County. Phenology: flowering & fruiting.
Annotated by David Griffiths.
David Griffiths, s.n.. //1891.

U.S.A., Nebraska, Richardson County: Southeast of Rulo.
Low meadow. Phenology: flowering & fruiting.
Annotated by Howard C. Reynolds.

U.S.A., Nebraska, Kearney County:
Elev. 500 m.
Prairies and sandhills. Phenology: flowering & fruiting.
Annotated by P. A. Rydberg.

U.S.A., Nebraska, Gage County:
Annotated by W. C. Knight.
W. C. Knight, s.n.. //.

U.S.A., Nebraska, Sheridan County: Metcalf Public Hunting Grounds, 13 mi N of Hay Springs.
Open ridges and Pinus ponderosa forest; bottoms and stream banks. Phenology: flowering & fruiting.
Annotated by Elray S. Nixon.

U.S.A., Nebraska, Kearney County: Minden.
Annotated by Harry Hapeman.
Harry Hapeman, s.n.. 7/26/1891.

U.S.A., Nebraska, Scotts Bluff County: Platte, Horse Creek.
Annotated by P. A. Rydberg.

U.S.A., North Dakota, Benson County: Leeds.
Prairies. Phenology: flowering & fruiting.
Annotated by J. Lunell.

U.S.A., North Dakota, Stutsman County: Jamestown.
Annotated by C. C. Schmidt.

U.S.A., North Dakota, Benson County: Minnewaukon.
Annotated by M. A. Brannon.

U.S.A., North Dakota, Ransom County:
Low places on clay loam soil. Phenology: flowering & fruiting.
Annotated by W. B. Bell on 8/3/1909.

U.S.A., North Dakota, Nelson County:
On prairies, sandy loam. Phenology: flowering & fruiting.
Annotated by no collector.

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: along Purgatorie River, north end of Trinidad.
Riparian, ditch, wetlands. Phenology: flowering & fruiting.
with Elizabeth Mark

U.S.A., Colorado, Delta County: Uncompahgre Plateau: Escalante Canyon, BLM land just past Cap Springs, ca 14 air mi WSW of Delta.
Low elevation riparian area in sparse pinyon/juniper. Phenology: flowering & fruiting.
1. Panicum virgatum L..

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: Roubideau Creek, above junction with Potter Canyon to 2 trail mi upstream, ca 11 1/4 air mi SW of Delta.
Riparian area in canyon with sparse pinyon/juniper. Phenology: flowering & fruiting.
1. Panicum virgatum L..

U.S.A., Colorado, Delta County: Uncompahgre Plateau: Escalante Canyon, seep area in canyon wall, just up the road from Caps Spring, ca 15 air mi SW of Delta.
Seep/intermittent creek in sandstone canyon. Phenology: flowering.
1. Panicum virgatum L..
with Kim Hansen and Linda Deeds

U.S.A., Wyoming, Goshen County: Packer Lake ca 5 mi ESE of Huntley.
Lake shore, with Muhlenbergia asperifolia and Schoenoplectus pungens. Phenology: flowering.

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.
Wet meadow. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Sand Mesa Game Bird Management Unit: near Lake Cameahwait.
Uplands. Phenology: flowering & fruiting.