Pyrrocoma lanceolata var. lanceolata (2002)
ASTERACEAE
Pyrrocoma lanceolata (Hook.) Greene var. lanceolata
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Soukup Draw on Hall Road, ca 16 air mi NNW of Gillette; ca 17 air mi SSE of Recluse.
Creek bed. Phenology: flowering & fruiting.
Accession: RM (unaccessioned)

Pyrrocoma lanceolata var. lanceolata (2003)
ASTERACEAE
Pyrrocoma lanceolata (Hook.) Greene var. lanceolata
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: TA Buttes on two-track road off Union Chapel Road, ca 6 air mi SE of Gillette; ca 4.5 air mi S of Wyodak.
Playa-like area with Sporobolus airoides and Hordeum. Phenology: flowering.
Accession: RM (unaccessioned)

Pyrrocoma lanceolata var. lanceolata (1994)
ASTERACEAE
Pyrrocoma lanceolata (Hook.) Greene var. lanceolata
U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: perimeter and drainage of Little Sand Spring, ca 10 air mi ESE of Lamont; ca 9 air mi NW of Table Mountain.
Side of spring; dense graminoids dominant; wet peaty soil. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: Warm Springs and vicinity, ca 5 air mi S of Sweetwater Station; ca 8 air mi N of Buffalo Basin Oil Field.
Open drainage around spring; dense, grazed graminoids dominant; moist, compact organic soil. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: dammed pond, associated drainages, and nearby slopes, ca 6.5 air mi N of Buffalo Basin Oil Field; ca 11.5 air mi S of Sweetwater Station.
Elev. 6660 ft.
Drainages around pond; dense, grazed graminoids, scattered forbs; moist, dark, soil. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Wyoming, Fremont County: [location and coordinates withheld]
Open creek and surrounding banks; heavily grazed graminoids, scattered Salix; rocky soil; low species diversity. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: along West Fork of Crooks Creek, ca 4.5 air mi SSW of Crooks Peak; ca 4.5 air mi NW of Bare Ring Butte.
Spring on gentle north-facing slope of vegetated sand dune; dense sagebrush dominant at edge of spring, grazed graminoids dominant in center; mucky sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: dry stream ca 1.5 air mi E of Picket Lake; ca 10 air mi N of Bastard Butte.
Elev. 7000 ft.
Small dry spring along stream; grazed graminoids dominant; dry soil. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Bush Rim, ca 7.5 air mi NW of The Pinnacles; ca 10 air mi S of Oregon Buttes.
On sagebrush flats above small spring; dry fine rocky soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: drainage near top of Joe Hay Rim, ca 7 air mi S of Oregon Buttes; ca 10 air mi SE of The Pinnacles.
Open flat plateau on east-facing slope of wide drainage; grazed graminoids dominant, stands of Populus; dark fine soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Separation Lake and vicinity, ca 3 air mi NW of Dry Lake; ca 4 air mi ENE of Rendle Point.
Elev. 6400 ft.
Dry grazed creekbed on greasewood flats; hard clay soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Separation Flats, ca 6.5 air mi S of Table Mountain; ca 9 air mi NE of Rendle Point.
Edge of small dry pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Boggy Meadows, ca 4 air mi W of Table Mountain; ca 8.5 air mi NE of Separation Point.
Edge of small alkaline pond in depression in rolling sagebrush sand dunes; moist sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Little Camp Creek, ca 3 air mi NE of Bairoil; ca 5 air mi SE of Whiskey Peak.
Small dammed creek on north-facing slope in sagebrush hills; graminoids dominant; dry fine rocky soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: [location and coordinates withheld]
On flats near creek; dry graminoids dominant; compacted soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: junction of Sulpher and West Alkali creeks, ca 3 air mi WNW of Buffalo Basin; ca 6.5 air mi SE of North Bear Mountain.
On side of small creek in sandy mucky soil on Sarcobatus plains; some alkaline deposits. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: East Alkali Creek, ca 5 air mi N of Buffalo Basin; ca 8 air mi E of North Bear Mountain.
Near narrow creek in rolling sagebrush hills; grazed graminoids dominant, some scattered Sarcobatus. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Ferris Mountains: foothills ca 7 air mi NW of Ferris; ca 9 air mi ENE of Lamont.
Shaded spruce stand near creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: in Chain Lakes Basin, ca 22.5 air mi SW of Bairoil; ca 18 air mi N of Creston Junction.
Small moist patches of interwoven graminoids and mosses scattered in salt flat. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Great Divide Basin: Five Fingers Butte, ca 8 air mi S of Picket Lake; ca 7 air mi NE of Buffalo Hump Basin.
Alkaline wash with low sand dunes; silty soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Crooks Mountain: summit ca 5.5 air mi SE of Warm Springs; ca 8 air mi NE of Buffalo Basin oil field.
Dry, rocky east facing slope with grasses and scattered juniper and pine; rocky silty soil, granitic rocks. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Star Valley: Salt River Drainage: along Wyo Hwy 238 ca 2.4 mi N of Auburn, ca 8 air mi NW of Afton.
Thick and colorful in moist areas around sulphur spring. Phenology: flowering.
Accession: RM 723977, Barcode: RM0309501

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Twin Creek, ca 1.5 air mi E of Nugget.
Stagnant water in salty flats, surrounding sagebrush. Phenology: flowering & fruiting.
with Ronald L. Hartman
Accession: RM 607968, Barcode: RM0309502

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Bear River, ca 3.5 air mi N of Leefe.
Riverside meadows, marshes, and willows. Phenology: flowering & fruiting.
with Ronald L. Hartman
Accession: RM 607967, Barcode: RM0309503

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Saline playa. Phenology: flowering.
Accession: RM (unaccessioned)

U.S.A., Wyoming, Sweetwater County: Wetlands and Adjacent Areas: Big Sandy River, ca 37 air mi NW of Rock Springs.
Dry sandy uplands. Phenology: flowering.

U.S.A., Wyoming, Albany County: Wetlands and Adjacent Areas: Meeboer Lake, ca 15 air mi SW of Laramie.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: confluence of Horse Creek and Fish Creek, ca 34 air mi SW of Casper.
Moist banks and flood plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wetlands and Adjacent Areas: Hams Fork, ca 11 air mi NW of Kemmerer.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Uinta County: Wetlands and Adjacent Areas: Muddy Creek, ca 19 air mi E of Evanston.
Moist alkali-covered banks and flood plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Wetlands and Adjacent Areas: Muddy Springs, ca 28 air mi WNW of Rawlins.
Moist banks of spring-fed pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Wetlands and Adjacent Areas: Chain Lakes, ca 33 air mi NW of Rawlins.
Dry shores. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Wetlands and Adjacent Areas: Sweetwater River, ca 38 air mi SE of Lander.
Exposed mud flats and river banks. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Wetlands and Adjacent Areas: East Fork River, ca 15 air mi SE of Pinedale.
Moist banks and flood plains. Phenology: flowering & fruiting.

U.S.A., Colorado, Larimer County: Roosevelt National Forest and Vicinity: Front Range: Pfister Draw State Wildlife Management Area: off Laramie River Road (County Road 103), ca 50 air mi NW of Fort Collins.
Flat Artemisia rangeland, with some dry red sandstone and white calcareous soils and marshy in draw bottom. Phenology: flowering.
Accession: RM 766637

U.S.A., Wyoming, Albany County: Little Laramie River Valley: ca 20 mi NW of Laramie, along Sprague Lane.
41.4204° N, 105.7892° W; NAD 83, uncertainty 2 mi., Digital Map
Common on gravelly banks. Phenology: flowering & fruiting.
with Marjorie W. Porter

U.S.A., Wyoming, Albany County: Laramie, south edge of town.
41.3036° N, 105.5831° W; NAD 83, uncertainty 0.75 mi., Digital Map
Common in strongly alkaline soil. Phenology: flowering & fruiting.
with Marjorie W. Porter

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Jackson Lake N of Wyo Hwy 220, ca 8.6 air mi NE of Three Forks Junction.
Dry saline lake shores dominated by graminoids and bordered by sagebrush and greasewood. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: tributary of Second Sand Creek, ca 7.6 air mi NE of Elk Mountain townsite; ca 10.4 air mi SW of Medicine Bow townsite.
Dry swale with moist patches. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Near Kemmerer.
Elev. 2100 m.
Relatively moist ground in draw. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Shirley Basin Reservoir N of Wyo Hwy 77, ca 25 air mi NW of Medicine Bow townsite.
Saline lake shores bordered by rabbitbrush and greasewood. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Centennial. [Middle Fork Little Laramie River*].
*Field book. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie.
Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie.
*Lake" Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Poison Spider Creek.
Phenology: flowering.

U.S.A., Wyoming, Albany County: Centennial. [Middle Fork Little Laramie River*].
Wet, saline flats. *Field book. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Centennial.
Stony saline flats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: 0.8 mi from Elk Mountain/I-80 turnoff along Rattlesnake Pass Road.
Common in alkaline and grassy areas along the road; Aster frondosus and A. brachyactys here also. Phenology: flowering & fruiting.
with Ronald L. Hartman

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

U.S.A., Wyoming, Albany County: Rock River.
Open grassy bottoms. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Between Laramie and Tie Siding.
Plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Medicine Bow National Forest.
Gentle northern slope; shallow loam; park habitat with yarrow, vetch, brome, and wheatgrass; common. Phenology: flowering & fruiting.
Accession: USFS 402367, Barcode: USFS0072087

U.S.A., Wyoming, Albany County: Laramie.
Grasslands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Centennial.
41.3045° N, 106.1267° W; NAD 83, uncertainty 0.5 mi., Digital Map
Semi-meadowed flats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Muskrat Creek.
42.9016° N, 107.7067° W; NAD 83, uncertainty 0.5 mi., Digital Map
Grassy, alkaline bottoms. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Star Valley-Greys River in the Afton Area: Thomas Fork, 300 ft SE of Giraffe Creek.
Growing in dry open canyon bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie; adjacent to Spring Creek.
Saline flats; abundant in stands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: 4th Street and Lyons, Laramie.
Vacant lot. Phenology: flowering & fruiting.
Richard Alan Mayes, 143. 7/24/1974.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Saratoga Lake E of Wyo Hwy 130, ca 1.2 air mi ENE of Saratoga; ca 18 air mi N of Encampment.
Wetlands and disturbed gravelly area surrounding lake. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Slate Creek.
Wet alkali flat with Salicornia and Triglochin. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: 28 mi N of Wamsutter.
Along pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Just N of the Hogsback on Dry Piney Creek.
Elev. 2200 m.
T27N R113W S6
Growing in meadow with Potentilla fruticosa. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Just E of the Green River on Wyo Hwy 351.
Elev. 2100 m.
Moist meadow communtiy. Phenology: flowering.

U.S.A., Wyoming, Albany County: West Laramie Basin: adjacent to Wyo Hwy 130, 3 road mi E of Centennial, due S of Union Pacific rail line.
Moist, open roadside ditch with Agrostis stolonifera and Deschampsia; slightly drier soil by fence line. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Sweetwater River Valley: bend of Sweetwater River, ca 5 air mi SW of Sweetwater Station (TNC Sweetwater Preserve).
Grassy, open banks of river with Agrostis stolonifera, Cirsium arvense, and scattered willows. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Basin: flats on south side of Spring Creek, N of I-80 near U.S. Hwy 287 exit (3rd St. exit) on south side Laramie.
Moist, whitish alkali-clay flants dominated by Distichlis, Hordeum, Muhlenbergia asperifolia, and Juncus balticus within matrix of semi-disturbed Sarcobatus vermiculatus. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Basin: south shore of Meeboer Lake, ca 1.2 mi NW of Wyo Hwy 230; ca 4.2 mi E of east end of Lake Hattie; ca 12 air mi SW of Laramie.
Community of Elymus repens/Deschampsia cespitosa/Juncus balticus on low slope on banks rimming lake; soils dry to slightly moist, coarse sandy-clay. Phenology: flowering.
with Laura Welp

U.S.A., Wyoming, Carbon County: Great Divide Basin: unnamed drainage on west side of U.S. Hwy 287, ca 2.25 air mi SSE of Lamont; ca 4.5 mi N of Bull Spring Lake.
Banks of seasonally wet wash on alkali-affected gray to tan clay soils; meadow along wash dominated by Juncus balticus, Distichlis spicata, and Puccinellia nuttalliana; low clay mounds on bank with Sarcobatus, Atriplex gardneri, and Sporobolus airoides. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Basin: north shore of Leazenby Lake between the two north arms of the lake, ca 0.5 mi E of U.S. Hwy 287, ca 8.8 air mi S of Laramie.
Distichlis spicata- Muhlenbergia richardsonis- Sporobolus airoides meadow on reddish clay soil on flats on bank of lake. Phenology: flowering.
with Laura Welp

U.S.A., Wyoming, Natrona County: Sweetwater River Valley: playa lakes ca 1.2-1.6 air mi W of Sanford Peak and 0.7 mi ESE of Steamboat Lake, ca 1 mi N of Pathfinder Reservoir (at high water) and 1.3 mi S of Wyo Hwy 220.
South shore of dry alkali lake on alkaline clay soil. Community of Distichlis stricta and scattered Spartina on lakeshore with vegetative cover 15-25%. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Sweetwter River, ca 3 air mi NE of Jeffrey City.
Meadow north of river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Tributary of Buffalo Creek; ca 12 air mi ENE of Jeffrey City.
Meadows beside creek. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Soda Lakes: eastern shore and marsh along eastern shore of the lake farthest east; ca 8.5 air mi ENE of Jeffrey City.
Edge of marsh. Phenology: flowering & fruiting.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Sweetwater River, north of bridge across river on Agate Flats Road, ca 9.5 air mi ENE of Jeffrey City.
Moist area at top edge of river bank, in clump of rocks. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Lincoln County: Slate Creek.
Wet alkali flat with Salicornia and Triglochin. Phenology: flowering & fruiting.
Accession: RM 383970

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: east side of Walden Reservoir, just W of Walden.
Roadside to shore. Phenology: flowering & fruiting.
Accession: RM 757526

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: 3.5 air mi S of Cowdrey.
Greasewood flats and vicinity. Phenology: flowering.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: Carlstrom Reservoir (Cowdrey Lake), ca 1.2 air mi S of Cowdrey.
Shoreline to sagebrush uplands including old railroad bed and irrigation ditch. Phenology: flowering & fruiting.
Annotations:
1. Pyrrocoma lanceolata (Hook.) Greene var. lanceolata
Annotated by B. E. Nelson.

U.S.A., Wyoming, Albany County: Laramie Range: Leazenby Lake, ca 8.5 air mi S of Laramie off of U.S. Hwy 287.
Lakeside. Phenology: flowering & fruiting.
with J. Brondum and T. McGowan

U.S.A., Colorado, Larimer County: Around Mineral Springs, Lake John.
Phenology: flowering & fruiting.
Annotations:
Annotated by Richard Alan Mayes in 1976.

U.S.A., Colorado, Eagle County: McCoy.
Hillsides. Phenology: flowering.
Annotations:
Annotated by Richard Alan Mayes in 1976.
Earl Lynd Johnston, 309. 8/4/1917.
with George G. Hedgecock

U.S.A., Colorado, Eagle County: McCoy.
Hillsides. Phenology: flowering.
Annotated by Richard Alan Mayes in 1976.
Earl Lynd Johnston, 309. 8/4/1917.

U.S.A., Colorado, Grand County: Hot Sulphur Springs.
Phenology: flowering.
Ellsworth Bethel, 6297. 8/5/1921.

U.S.A., Colorado, Saguache County: N of Moffat.
Meadow. Phenology: flowering & fruiting.

U.S.A., Colorado, Rio Grande County: Monte Vista.
Among greasewood, moist places. Phenology: flowering.

U.S.A., Colorado, Jackson County: Lake John.
Phenology: flowering.
with J. Ewan

U.S.A., Colorado, Jackson County: North Park.

U.S.A., Colorado, Jackson County: North Park.
George E. Osterhout, 216. 8//1894.

U.S.A., Colorado, Routt County: Steamboat Springs.
George E. Osterhout, 2262. 9/2/1900.

U.S.A., Colorado, Routt County: Steamboat Springs.

U.S.A., Colorado, Jackson County: North Park: north fork.
George E. Osterhout, 5191. 8/7/1914.

U.S.A., Colorado, Jackson County: North Park, on Colorado Creek.
George E. Osterhout, 5797. 8/7/1918.

U.S.A., Colorado, Larimer County: Roaring Fork.
Muddy swales. Phenology: flowering.

Dry plains. Phenology: flowering.

U.S.A., Colorado, Gunnison County: Along the road to the Powderhorn Post Office.
In a ditch. Phenology: flowering.
Richard Alan Mayes, 106. 8/15/1973.

U.S.A., Colorado, Jackson County: 2 mi E of Lake John on County Route 74.
Meadow. Phenology: flowering.
Richard Alan Mayes, 142. 7/23/1974.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Commissary Ridge: ca 0.5 air mi SE of Kemmerer Reservoir along powerlines E of paved road; ca 12 air mi NW of Kemmerer.
Rolling sagebrush-grasslands, southwest exposure with some aspen on northeast side of gravelly ridge, also along roadside. Phenology: flowering.
Accession: 1010620, Barcode: RM0288548

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Meadow in the creek bottom with areas of salt deposits. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: [location and coordinates withheld]
Banks and margin of a very saline stream. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: along BLM Road 4412 in the Shell Creek drainage, ca 3.5 air mi SE of the Eversole Ranch, ca 44 air mi SE of Rock Springs; ca 25.5 air mi SW of Wamsutter.
Saltgrass meadow with spongy white alkali "balds". Phenology: flowering.

U.S.A., Wyoming, Carbon County: South-central Wyoming: Washakie Basin: along Red Creek just above the confluence of Red and Sand creeks, ca 1 air mi N of the confluence of Sand Creek and Little Snake River; ca 10.5 air mi W of Baggs.
Adjacent to alkali flat and creek. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: spring area ca 1 air mi W of Sand Creek, ca 1.5 air mi S of Cedar Breaks Draw; ca 15 air mi WNW of Baggs.
Spring area. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: Grindstone Spring and adjacent area, ca 2 air mi N of Powder Rim; ca 3 air mi S of Prehistoric Rim; ca 24.5 air mi WNW of Baggs.
Spring area. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: Rotten Springs and adjacent area, ca 2.5 air mi N of Powder Rim; ca 1 air mi S of Reader Cabin Draw; ca 20.5 air mi WNW of Baggs.
Spring area. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: Rotten Springs and adjacent area, ca 2.5 air mi N of Powder Rim; ca 1 air mi S of Reader Cabin Draw; ca 20.5 air mi WNW of Baggs.

U.S.A., Wyoming, Carbon County: South-central Wyoming: Little Snake River floodplain on the south side of the river, ca 1 air mi W of the confluence of the Little Snake River and Sand Creek; ca 12 air mi WSW of Baggs.
T12N R93W S8 South1/2; also N1/2 S17
Moist terrace above river. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: Onion Creek, ca 9 air mi SW of Daniel Junction.
Sagebrush-grassland and alkaline stream. Phenology: flowering.
with Bruce Embury

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Commissary Ridge: 0.5 air mi SE of Kemmerer Reservoir along powerlines E of paved road; ca 12 air mi NW of Kemmerer.
Rolling sagebrush-grasslands, southwest exposure with some aspen on northeast side of gravelly ridge, also along roadside. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: 1 air mi E of Hogsback Ridge, ca 22 air mi SW of Big Piney.
Marshy area and edge of stock pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: Sweetwater River, ca 3 air mi NE of Jeffrey City.
T30N R92W S36
Meadow north of river.

U.S.A., Wyoming, Fremont County: Tributary of Buffalo Creek; ca 12 air mi ENE of Jeffrey City.
Meadow beside creek.

U.S.A., Wyoming, Fremont County: Soda Lakes: eastern shore and marsh along eastern shore of the lake farthest east; ca 8.5 air mi ENE of Jeffrey City.
Edge of marsh.

U.S.A., Wyoming, Fremont County: Sweetwater River, north of bridge across river on Agate Flats Road, ca 9.5 air mi ENE of Jeffrey City.
Moist area at top edge of river bank.

U.S.A., Wyoming, Sweetwater County: Rock Springs Uplift: along Deadman Wash, ca 3 air mi NE of Point of Rocks.
Alkali meadow along wash. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Ice Slough, ca 9 air mi WNW of Jeffrey City.
Marsh with very boggy peat deposits and adjacent margins. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Southeastern Absarokas: drainage immediately NW of confluence of Jack Creek and the Greybull River.
Meadows, aspen groves, marshy drainages, and spruce forests; marshy drainage. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Plains: Laramie, open area SW of intersection of 9th Street and Russell along Spring Creek.
Alkaline basins and flats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Laramie Plains: I-80, 0.8 mi NW of Elk Mountain Interchange.
Saline flats and ditches along frontage road. Phenology: flowering & fruiting.
with Barry Hammel

U.S.A., Wyoming, Sublette County: Green River Basin: south end of Elk Mountain.
Sagebrush and greasewood flats and adjacent ridge. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Green River Basin: Eden Reservoir, south side, ca 8.5 air mi NE of Farson.
Reservoir margin and edge of canal. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: McNinch Reservoirs 1 and 2, ca 8.5 air mi NW of Big Piney.
Reservoir edge, meadows, and sagebrush with outflow stream meadowed edges. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: edge of Green River, ca 1 air mi N of La Barge.
Riverside mudflats, meadows, and willows. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Webb Draw, ca 5.5 air mi ENE of Merna.
Small reservoir, meadowed draw, hillside spring, aspen grove, and ridgetop sagebrush. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Green River, ca 9 air mi S of Big Piney.
Riverside meadows, sagebrush, and sagebrush bluff. Phenology: flowering.
with Ben and Becky Cramer

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

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

U.S.A., Wyoming, Sublette County: Green River Basin: Muddy Creek, ca 8 air mi NNE of Big Piney.
Winding creek through Sarcobatus saltflats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Plains; P. Johnson's Ranch.
T14N R76W S31

U.S.A., Wyoming, Sweetwater County: 8 mi N of Wamsutter.
T24N R93 W S18
Along pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Plains: just E of Sheep Mountain, ca 2 air mi N of Lake Hattie, ca 9 air mi ESE of Centennial.
Seep on plains, salty, sandy clay soil. Phenology: flowering.
with Bonnie Heidel, Richard McNeill, Benjamin S. Legler

U.S.A., Montana, Valley County: Along West Fork Poplar River at Mason Road crossing, ca 10.5 air mi ENE of Opheim; ca 54 air mi NNE of Glasgow.
Low marshy flats and drier meadows along the river. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Mont Hwy 24 at bridge over Dry Fork Creek, ca 8.5 air mi SE of Forsman Reservoir, ca 23.5 air mi NNE of Glasgow.
Sagebrush-grasslands on clay soil. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 2468. 7/29/2010.

U.S.A., North Dakota, Mountrail County: Stanley.
Alkali flats. Phenology: flowering.
2. Pyrrocoma lanceolata (Hook.) Greene var. lanceolata

U.S.A., Wyoming, Uinta County: [location and coordinates withheld]
Muddy roadside, alkaline clay flats. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Upland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: White horse Creek Wilderness Study Area: lower Whitehorse Creek, ca 4 air mi WNW of Oregon Butte summit, ca 14 air mi SW of South Pass City.
Broad alkaline meadow; with Juncus balticus, Elymus trachycaulus, Erigeron spp. Phenology: flowering.

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

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Steamboat Lake S of Wyo Hwy 220, ca 19 air mi W of Alcova townsite.
Alkaline flats near lake. Phenology: flowering & fruiting.