Lepidium ramosissimum (1997)
BRASSICACEAE
Lepidium ramosissimum A. Nelson
U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: South Park: at eastern boundary of Muddy Springs State Wildlife Area, on access road ca 1 air mi W of Elkhorn or County Road 15, ca 5.5 mi N of intersection with U. S. Hwy 24; ca 7 air mi NE of Hartsel.
Elev. 9660 ft.
Roadside in Artemisia frigida-Bouteloua gracilis grassland. Phenology: fruiting.
with Irene Thien
Accession: RM (unaccessioned)

Lepidium ramosissimum (1997)
BRASSICACEAE
Lepidium ramosissimum A. Nelson
U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: South Park/Puma Hills: off Forest Road 231 at forest boundary, ca 1 air mi NE of Glentivar.
Roadside in Artemisia frigida-Bouteloua gracilis grassland. Phenology: fruiting.
with Irene Thien
Accession: RM (unaccessioned)

Lepidium ramosissimum (1996)
BRASSICACEAE
Lepidium ramosissimum A. Nelson
U.S.A., Wyoming, Fremont County: Wind River Range: Fitzpatrick Wilderness Area: Old Glacier Trail to Arrow Mountain.
Wooded and grassy slopes through sedimentary material. Phenology: fruiting.
with David Rosenthal
Accession: RM 679733, Barcode: RM0009748

U.S.A., Wyoming, Fremont County: Wind River Range: Shoshone National Forest: from intersection of Forest Service Road 540 (Pelham Lake Trail) and 4wd trail crossing Clint Creek, ca 15 air mi NW of Dubois.
Along creek with Populus and Salix below and spruce and pine above. Phenology: fruiting.
Accession: RM 680358, Barcode: RM0009749

U.S.A., Wyoming, Fremont County: Wind River Range: Shoshone National Forest: end of Forest Road 533 at intersection of Crow Creek, old pack trail to Continental Divide and S along divide, ca 18.5 air mi W of Dubois.
Stream bottom and pine/spruce forest to ridge crest. Phenology: fruiting.
Accession: RM 680357, Barcode: RM0009750

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: vicinity of Hawks Rest Patrol Cabin, ca 1.3 air mi S of Yellowstone National Park.
Elev. 8050 ft.
Edge of Pinus-Picea forest and adjacent meadows.
Accession: 671343

U.S.A., Wyoming, Park County: North Fork Shoshone River Drainage: Absaroka Mountains: along Crow Creek, ca 1 mi W of confluence with North Fork Shoshone River, ca 1.3 mi N of U.S. Hwy 14, 16, & 20.
Elev. 7180 ft.
Dry, rocky openings in Douglas fir forest, prominent species included: Artemisia tridentata ssp. vaseyana, Selaginella densa, Gayophytum diffusum, and Eriophyllum lanatum var. integrifolium. Phenology: fruiting.

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Dry slopes near pond, sagebrush dominant. Phenology: fruiting.
Accession: 673200

U.S.A., Wyoming, Teton County: Mount Leidy Highland Area: Shadow Mountain, 6 air mi NE of Moose from base of mountain to and above Antelope Springs.
Grassy and wooded valley. Phenology: fruiting.
Accession: 655574

U.S.A., Colorado, Routt County: Sierra Madre\Park Range: Park Range: Routt National Forest: In canyon along Rock Creek, ca 16.5 air mi SE of Yampa, ca 4 air mi NNE of McCoy.
Brushy bench above the creek. Phenology: flowering & fruiting.
with Michelle Nelson

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Tunp Range: Rock Creek Ridge, from Pine Creek Ski Area
Grassy and wooded slopes. Phenology: flowering & fruiting.
with Charmaine Refsdal
Accession: (unaccessioned)

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Southern Sublette Range: Chalk Creek, ca 7 air mi N of Cokeville.
Hillside seeps, streamside, and sagebrush canyon bottom. Phenology: flowering & fruiting.
with Jane T. Kellett
Accession: (unaccessioned)

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: First Sand Creek and ridge to west, ca 7.2 air mi N of Elk Mountain townsite; ca 15.2 air mi SE of Hanna.
Disturbed roadside. Phenology: fruiting.
Accession: RM 667653

U.S.A., Wyoming, Albany County: Laramie Basin: flats S of Spring Creek and N of I-80 at Third Street exit in Laramie.
Whilte alkali playa in community of Scirpus maritimus, S. nevadensis, and Distichlis stricta. Soil seasonally flooded, fine-textured clay. Vegetative cover ca 30%. Phenology: fruiting.
Accession: RM 683924

U.S.A., Wyoming, Teton County: Bridger-Teton National Forest: Teton Wilderness: on Gravel Creek, ca 12 air mi NE of Moran; ca 28.5 air mi NE of Moose.
Scoured stream bottomland with sand and gravel bars; dominant species Populus balsamifera, Populus angustifolia, Alnus sp. Phenology: fruiting.
Annotations:
1. Lepidium ramosissimum A. Nelson
Annotated by David Scott.
with Tacheeni Scott

U.S.A., Wyoming, Teton County: Southwestern Absarokas: ca 9.5 air mi E of Moran Junction along "Rosies Ridge" (Forest Road 30060), ca 1/4 mi N of U.S. Hwy 26-287.
Along roadside.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness.
Lodgepole pine forest with some spruce and fir. No other locality data is provided. -RCR

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: ca 12 air mi NE of Moran Junction, near Pacific Creek.
Along small stream.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: ca 12.5 air mi NE of Moran Junction; along Gravel Creek.
Sandbar with cobbles along creek.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: ca 11.5 mi N of Togwotee Pass.
In wet ground near stream.

U.S.A., Wyoming, Fremont County: Southwestern Absarokas: ca 21 air mi NW of Dubois in vicinity of Forest Service Road 513.
Lodgepole pine/Aspen-sagebrush ecotone and roadside.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: ca 18.5 air mi NE of Moran Junction above Two Ocean-North Buffalo Fork Trail.
Open meadows with SE exposure on fine limestone talus.

U.S.A., Wyoming, Park County: Southwestern Absarokas: vicinity of South Fork Ranger Station, ca 45 air mi SW of Cody.
Artemisia and Salix along stream.

U.S.A., Wyoming, Park County: Southwestern Absarokas: vicinity of South Fork Ranger Station, ca 45 air mi SW of Cody.
Mixed Artemisia-Salix.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: vicinity of Hawks Rest Patrol Cabin, ca 1.3 air mi S of Yellowstone National Park.
Edge of Pinus-Picea forest and adjacent meadows.
Accession: (unaccessioned)

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness: vicinity of packbridge crossing North Buffalo Fork, ca 7 mi NW of Togwotee Pass.
Open lodgepole forest along river.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Teton National Forest: ca 8 mi E of Moran Junction along U.S. Hwy 26 at Blackrock Ranger Station, near Blackrock Creek.
Open sage with scattered Salix near creek; some disturbed areas.

U.S.A., Colorado, Routt County: White River National Forest.
Northwest slope; clay loam soil; aspen and open parks. Phenology: fruiting.
Annotations:
4. Lepidium ramosissimum A. Nelson
Annotated by Ihsan A. Al-Shehbaz on 9//2009.
Edward L. Besondy, EB-42. 7/16/1938.
Accession: USFS 461395

U.S.A., Colorado, Summit County: South Fork Swan River, 5 mi E of Tiger.
T7S R76W S6
Sandy to rocky soil with Picea and Abies. Common annual. Phenology: flowering & fruiting.
Annotations:
3. Lepidium ramosissimum A. Nelson
Annotated by Ihsan A. Al-Shehbaz on 9//2009.
Accession: RM 358470

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Tunp Range: Rock Creek Ridge, 0.5 air mi S of Pine Creek Ski Area.
Grassy and wooded slopes. Phenology: flowering & fruiting.
with Charmaine Refsdal

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Chalk Creek, ca 7 air mi N of Cokeville.
Hillside seeps, streamside, and sagebrush canyon bottom. Phenology: flowering & fruiting.
with Jane T. Kellett

U.S.A., Idaho, Bonneville County: Targhee National Forest: Snake River Range: ridge between Conglomerate Canyon and Little Elk Creek.
T1S R45E S11
Creek bottom.
with Rafael Molina

U.S.A., Idaho, Clark County: Targhee National Forest: Western Centennial Mountains: roadside along Pleasant Valley Creek, ca 8 air mi NW of Spencer.
T13N R35E S34
Mostly roadside weeds and grasses.

U.S.A., Idaho, Teton County: Targhee National Forest: East Slope Big Hole Mountains: trail along Corral Creek to Red Creek, ca 5.5 air mi W of Victor.
T3N R44E S2; also S11
Coniferous forest dominated by Pinus contorta, Abies lasiocarpa and Pseudotsuga menziesii, with some riparian.

U.S.A., Wyoming, Teton County: Targhee National Forest: East Slope Teton Range: trail from Wyo Hwy 22 to intersection with trail to Phillips Pass, ca 7.5 air mi W of Jackson.
Coniferous forest, dominated by Abies lasiocarpa, Pinus contorta, and Sorbus scopulina.

U.S.A., Idaho, Bonneville County: Targhee National Forest: West Slope Snake River Range: Sheep Creek Canyon, ca 2-3 air mi NE of Palisades Townsite.
T1N R45E S33; also S34
Open valley bottom dominated by shrubs and forbs, bordered by coniferous-aspen forest with some riparian.

U.S.A., Wyoming, Teton County: Targhee National Forest: Crest of Teton Range: south face of Mt. Glory, ca 9 air mi NW of Jackson.
Forested slope dominated by Abies lasiocarpa, Picea engelmannii, and Pinus flexilis.

U.S.A., Idaho, Clark County: Targhee National Forest: Western Centennial Mountains: along Modoc Creek, 2 air mi S of National Forest boundary, ca 22 air mi NW of Dubois.
T13N R35E S4; also S9
Canyon with mostly Artemisia, many forbs and grasses.

U.S.A., Idaho, Clark County: Targhee National Forest: Centennial Mountains: west side of Beaver Creek near confluence with Stoddard Creek, ca 16 air mi N of Dubois.
Moist meadow dominated by forbs and grasses.

U.S.A., Idaho, Clark County: Targhee National Forest: Western Centennial Mountains: along Irving Creek, ca 27 air mi NW of Dubois.
T13N R33E S17
Plants just above riparian area.

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: along Jeep Trail 250 to Long Park N of the North Fork White River, ca 13 air mi NE of Buford; ca 28 air mi E of Meeker.
On trail. Phenology: fruiting.

U.S.A., Wyoming, Carbon County: Sierra Madre: SW of Encampment ca 3 air mi.
T14N R84W S22
Disturbed dry soil. Few plants. Phenology: flowering & fruiting.

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: north shore of Columbia River at China Bend, ca 9 air mi SW of Northport; east bank of mouth of Flat Creek and 1 mi north along river bank.
Riverbank above and below floodline; sand, cobble patches, ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Washington, Ferry County: Western Colville National Forest and Vicinity: west of the Kettle River, ca 2.5 air mi SW of Danville.
West and south facing slopes with rock outcrops and scattered ponderosa pines. Open areas heavily infested with knapweed, cheatgrass, and goatweed. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: along Cliff Creek E of Burnt Creek, ca 40 air mi NW of Pinedale.
Aspen forest. Phenology: fruiting.
with Russ Nelson

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: along Cliff Creek E of Burnt Creek, ca 40 air mi NW of Pinedale.
Stony sand bars. Phenology: fruiting.
with Russ Nelson

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: along Strawberry Creek in Strawberry Canyon, ca 4.5-5 air mi W of Bedford, ca 13.5 air mi NNE of Afton.
Dry, open southerly-facing slope. Phenology: fruiting.
with Russ Nelson

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: upper Hoback Canyon ca 4 air mi SSE of Hoback Peak, ca 13 air mi SW of Bondurant, ca 37 air mi WNW of Pinedale.
Along truck road. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Caribou Range: west side of Star Valley above the Salt River, ca 2.5-3 air mi SW of Thayne; ca 12.5-13 air mi NW of Afton.
Sagebrush-forb ridge top and upper slope. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: along South Fork North Horse Creek, ca 35 air mi W of Pinedale.
On old logging road through spruce-fir forest. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: upper end of Squaw Creek drainage, ca 7 air mi SE of Alpine; ca 26.5 air mi N of Afton.
Open aspen woods in spruce-fir forest. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: Middle Ridge E of Greys River, ca 11.5-12 air mi SE of Alpine, ca 26 air mi NNE of Afton.
Meadow on saddle on ridge. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: unnamed tributary of Fisherman Creek ca 1 mi W of Sled Runner Creek, ca 8 air mi SE of Bondurant; ca 28 air mi NW of Pinedale.
Roadside in sagebrush-grassland. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: near the head of Smiths Fork, ca 2 air mi SSE of Sheep Pass; ca 14 air mi SE of Afton.
Disturbed area. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: Indian Grave Flat, ca 15.5 air mi SE of Alpine Junction.
Old floodplain with hills covered with Pinus contorta and Picea surrounding. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: convergence of Blind Bull Creek and Greys River, ca 22 air mi NE of Afton.
Open area with stream on edge. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: Willow Creek Drainage: Adams Creek, 1-3 air mi E of Rimrock Ranch; 9 air mi SE of Hoback Junction.
Stream sides and adjacent coniferous slopes.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: Pickle Pass and 1 mi SW of it.
Open slopes.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: Phillips Creek, ca 5 air mi N of Afton.
Lodgepole pine and Douglas fir on north exposures, grass and herb communities and sagebrush on south exposures with Rocky Mountain juniper and some maple on ridges and slopes, also streamside; along or adjacent to stream. Phenology: flowering & fruiting.
with Bruce Embury

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: Coal Creek and South Piney Creek; ca 21 air mi W of Big Piney.
Shaley open slopes bordering on Douglas fir, lodgepole pine, and aspen woodland and streamside and adjacent moist slopes; streamside. Phenology: fruiting.
with Bruce Embury

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 & fruiting.
with Bruce Embury

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: Jeep trail SE from end of Dry Creek Road, ca 8 air mi ESE of Afton.
Meadows and open coniferous forests. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: Jamb Creek and lower slopes of ridge to N; ca 3.5 air mi ESE of Hoback Peak.
Open subalpine fir forests with grassy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: Deadman Mountain trail, 1-2 miles from trailhead; 0.5-1 air mi N of Deadman Mountain summit.
Scattered forests with meadows. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: junction of Sled Runner Creek with Fisherman Creek; 7 air mi SE of Bondurant.
Stream bottoms with willow thickets and adjacent slopes with Douglas fir and lodgepole pine. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: between Chall Creek and the South Fork Middle Beaver Creek, S of South Rim; ca 20 air mi NW of Daniel Junction.
Drainage, meadow, and adjacent lodgepole pine forest. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: South Cottonwood Creek at confluence of South Fork South Cottonwood Creek and at south end of Triple Peak; ca 28 air mi SW of Daniel Junction.
Stream bottom with willows and meadows and adjacent coniferous forests; meadows. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Wyoming Range: North Fork Sheep Creek from Sheep Creek to 1.5 mi upstream; ca 3 air mi W to WNW of McDougal Gap.
Sagebrush grassland, stream with willow thickets, and gravelly slopes (limestone); stream. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: from end of Murphy Creek Road to base of drainage W of peak 9988 (feet); just W of Star Peaks.
Streambed, roadside, and coniferous forest. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: Straight Creek just S and a little E of Mount Schidler; ca 2-2.5 air mi NE of Middle Piney Lake.
Stream side and banks. Phenology: fruiting.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: W end of Angle Mountain above Togwotee Overlook, ca 8 air mi NW of Togwotee Pass, ca 37 air mi NE of Jackson.
Gravelly slope with scattered sagebrush.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Fox Park along the Snake River, ca 1 air mi S of Yellowstone National Park, ca 50 air mi NNE of Jackson.
Around patrol cabin and hitching rail.
with Neil Snow

U.S.A., Wyoming, Park County: Southwestern Absarokas: Ishawooa Hills and Creek.
Sedimentary substrate of shales and sandstone and derivatives; sagebrush hills and slopes and badlands.
with Neil Snow

U.S.A., Colorado, Pitkin County: [location and coordinates withheld]
Meadows and roadcuts. Phenology: flowering & fruiting.
Michael K. Kirkpatrick, 2161. 7/1/2010.
Accession: RM (unaccessioned)

U.S.A., Colorado, Summit County: Gore Range: Arapaho National Forest: North Rock Creek near boundary of Eagles Nest Wilderness, ca 7 air mi NW of Silverthorne and ca 9 air mi SSE of Green Mountain Reservoir.
Mixed conifer forest and openings. Phenology: flowering & fruiting.
Michael K. Kirkpatrick, 2572. 7/8/2010.
Accession: USFS 898652, Barcode: USFS0060082

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Tigiwon Road (Forest Road 707) near the Cross Creek Trailhead, ca 2.5 air mi SSE of Minturn.
Moist, north-facing aspen hillside with scattered Douglas fir, buffaloberry and thimbleberry. Phenology: fruiting.
Michael K. Kirkpatrick, 4121. 8/9/2010.

U.S.A., Colorado, Pitkin County: White River National Forest: hills adjacent to Forest Road 800, ca 0.5 air mi N of confluence of West Divide and Little Beaver creeks and ca 14 air mi WSW of Carbondale.
Aspen forest, meadow, and rocky outcrops. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Green River Basin: near Elkol, ca 6 air mi SW of Kemmerer.
T20N R1182 S9
Voucher for Elkol/ Sorenson Mine Ecosystem reconstruction Project. Phenology: flowering & fruiting.
Alan T. Carpenter, 372. //1981.

U.S.A., Wyoming, Uinta County: [location and coordinates withheld]
Gentle sagebrush slopes. Phenology: fruiting.

U.S.A., Utah, Summit County: [location and coordinates withheld]
New growth in old fire area; steep, west-facing slopes; some clay soils. Phenology: fruiting.

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Tigiwon Road (Forest Road 707) near the Cross Creek Trailhead, ca 2.5 air mi SSE of Minturn.
Moist, north-facing aspen hillside with scattered Douglas fir, buffaloberry and thimbleberry. Phenology: fruiting.
Accession: USFS (unaccessioned), Barcode: USFS0060741

U.S.A., Wyoming, Uinta County: Basins and Mountains of Southwest Wyoming: ca 13 air mi SW of Mountain View; ca 4.1 road mi S of County Road 271 on both sides of road.
Cushion plants and sagebrush on gentle slopes. Phenology: flowering & fruiting.
with R. H. Lathrop

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Tarryall Mountains: off Forest Road 207, on the banks and slopes above the South Platte River, ca 1/2 road mi N of USFS Happy Meadows Campground; ca 2-1/2 air mi N of town of Lake George.
Open fields above the river. Phenology: flowering & fruiting.

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: South Park: along the southeastern shore of Antero Reservoir and adjacent hills, ca 4 air mi NE of Antero Junction; ca 6.5 air mi SW of Hartsel.
Roadside in broad, grassy flats beside the lake. Phenology: flowering & fruiting.

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Platte River Mountains: Hall Valley along the North Fork of the South Platte River and adjacent slopes, ca 4.7 air mi NW of Webster.
Roadside. Phenology: flowering & fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: off County Road 9, ca 5.5 air mi N of Canon City; ca 0.2 road mi S of Garden Park Interpretive Site.
Sandy-gravelly drainage with rocky pinyon-juniper uplands; mostly on Dakota sandstone with underlying Morrison formation occasionally outcropping. Phenology: fruiting.
Timothy W. Chumley, 525. 6/1/1995.

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Tarryall Mountains: along Forest Road 56 or Lost Park Road on North Fork of Lost Creek and surrounding slopes, ca 7 air mi ESE of Jefferson.
Roadside. Phenology: flowering & fruiting.

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: South Park: off County Road 15 or Elkhorn Road, ca 1.8 rd mi S of intersection with County Road 687, ca 5 air mi SE of Como.
Roadside in fringed sage-rabbitbrush grassland. Phenology: flowering & fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: East Gulch: along East Gulch and surrounding slopes and ridges, at end of County Road 27, ca 5.2 air mi N of town of Texas Creek. C1/2
In a deeply eroded, moderately shaded rocky wash with a small running stream. Phenology: fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Cable Gulch: off Forest Road 174, ca 12.4 air mi NE of Salida.
Roadside in ponderosa pine forest. Phenology: fruiting.
with Irene Thien

U.S.A., Wyoming, Albany County: Laramie. [County not given on label.]
Phenology: flowering & fruiting.
Type Specimen: Syntype for Lepidium ramosissimum A. Nelson. Bull. Torrey Bot. Club 26: 124. 1899. Type" was often scribed on a sheet by Nelson long after he published the name. If we designate said specimen as a syntype, it may need to be lectotypified.
4. Lepidium ramosissimum A. Nelson.
3. Lepidium ruderale L. var. robustum Hook. comb. nov.
Annotated by C. Leo Hitchcock on 6/3/1935. 6/3/1935 verbatim date.
2. Lepidium ramosissimum A. Nelson sp. nov.
Annotated by Aven Nelson in 1899. Type.
1. Lepidium apetalum Willd..

U.S.A., Wyoming, Albany County: Laramie. [County not given on label.]
Phenology: flowering & fruiting.
Type Specimen: Syntype for Lepidium ramosissimum A. Nelson. Bull. Torrey Bot. Club 26: 124. 1899. Co-type.
4. Lepidium ramosissimum A. Nelson.
3. Lepidium ruderale L. var. robustum Hook. comb. nov.
Annotated by C. Leo Hitchcock on 6/6/1935. 6/6/1935 verbatim date.
2. Lepidium ramosissimum A. Nelson sp. nov..
1. Lepidium virginicum L..

Lepidium ramosissimum var. bourgeauanum (2004)
Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins
U.S.A., Arizona, Coconino County: Sitgreaves National Forest: Forest Road 34 (continuation of Ariz Hwy 99) at Forest Road 75, ca 68 air mi SSW of Winslow.
Roadside and adjacent ponderosa pine understory. Phenology: flowering & fruiting.
1. Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins
Annotated by B. E. Nelson.

Lepidium ramosissimum var. bourgeauanum (2004)
Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins
U.S.A., Arizona, Coconino County: Coconino National Forest: County Road (Forest Hwy) 3, just SW of Mormon Lake Ranger District Office, for 0.7 air mi SW of coordinate.
Ponderosa pine woodland and adjacent highway right of way. Phenology: flowering & fruiting.
1. Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins
Annotated by B. E. Nelson.

Lepidium ramosissimum var. bourgeauanum (2005)
Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins
U.S.A., Arizona, Coconino County: Coconino National Forest: Skunk Canyon where Forest Road 720 crosses, ca 3.5 air mi S of Flagstaff.
Tank dam. Phenology: fruiting.

U.S.A., Colorado, Hinsdale County: Eastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 W to Forest Road 520 SW to West Lost Creek Trailhead.
Grassy meadow. Phenology: fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: U.S. Hwy 160 W to County Road 600, N to Forest Road 629, W to Forest Road 923 then S; ca 9 air mi from Pagosa Springs. W center
Ponderosa pine forest. Phenology: fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: U.S. Hwy 160 W to County Road 600 to Forest Road 630 then W 3 mi; ca 12 air mi NAW from Pagosa Springs.
Roadside. Phenology: fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: U.S. Hwy 160 W to Forest Road 37 then
Ponderosa pine, Douglas fir and aspen forest. Phenology: fruiting.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 E to Monte Vista S on Colo Hwy 15, 4 air mi W to County Road 2S, turns into Forest Road 28 continue S for 17.8 road mi.
Creek side with aspen and Douglas fir, rocky south-facing slope in aspen woodland with Douglas fir and ponderosa pine; coniferous forest to summit. Phenology: flowering & fruiting.

U.S.A., Colorado, Mineral County: Eastern San Juan Mountains: San Juan National Forest: Fourmile Trail, ca 11 air mi N of Pagosa Springs.
Spruce, fir, and aspen forest. Phenology: flowering & fruiting.

U.S.A., Colorado, Conejos County: Eastern San Juan Mountains: Rio Grande National Forest: Stunner Campground.
Roadside. Phenology: fruiting.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: South Fork Guard Station, ca 1.5 air mi SW of South Fork.
Ponderosa pine, spruce and aspen forest and xeric meadow. Phenology: fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: U.S. Hwy 160 W to Forest Road 620 then ca 4 road mi NNW; ca 21 air mi W of Pagosa Springs. Central
Roadside and grazed opening in ponderosa pine forest. Phenology: fruiting.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Rio Grande National Forest: along Forest Road 345; east edge of Hogback Mesa, ca 15 air mi SW of Del Norte.
Open grassy slope. Phenology: flowering & fruiting.
with B. E. Nelson

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: Colo Hwy 151, 6 air mi NW of Forest Road 613.
Sandy at bottom then shale and sandstone outcrops with ponderosa pine forest and scattered Gambel oak and Fendlera understory above; sandy areas and outcrop. Phenology: fruiting.
1. Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins
Annotated by Jeanette Flaig.
with Jeanette Flaig

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: Tierra Amarilla Grant: along Archuleta Creek and Archuleta or Trail 124, ca 2 air mi W of Rio Chama, ca 28 air mi SE of Pagosa Springs.
Stony flats above the creek. Phenology: fruiting.
Annotated by Jeanette Flaig.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: Opal Lake Trailhead and along Opal Lake Trail 564, between Rio Blanco and Flattop Mountain, ca 14.5-15 air mi ESE of Pagosa Springs.
Stony meadow adjacent to the parking area, with patches of willows, cottonwood, and scattered white fir and blue spruce. Phenology: flowering & fruiting.
Annotated by Jeanette Flaig.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: the high point on Forest Road 766 above the head of Spring Creek, Ritter Canyon, Armstrong Canyon, and Salt Canyon, ca 10.5 air mi NE of Ignacio; ca 7.5 air mi ESE of Bayfield.
Meadows and openings among Gambels oak thickets. Phenology: fruiting.

U.S.A., Colorado, Conejos County: Eastern San Juan Mountains: Osier Park at the head of Toltec Creek and Massey Gulch, ca 1 mi E of Osier Mountain, ca 6.5 air mi SW of Fox Creek; ca 16 air mi WSW of Antonito.
Moist to dry meadows with patches of Potentilla fruticosa and Veratrum. Phenology: fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: Blanco Basin or Forest Road 012, Spring Basin just S of Blue Mountain, 12 air mi SE of Pagosa Springs.
Ponderosa pine/oak woodland in open bottomland with dense oak woodland on southwest-facing slope of 35 deg. Phenology: fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: First Fork or Forest Road 622, just N of Cooper Canyon, ca 17 air mi ENE of Bayfield.
Ponderosa pine and Quercus woodland with scattered Pseudotsuga menziesii; heavily grazed area with dense covering of Bromus tectorum. Phenology: flowering & fruiting.

U.S.A., Colorado, Rio Grande County: Eastern San Juan Mountains: Limekiln Peak, Old Spanish Trail, Limekiln, SW of Sevenmile Plaza, 7.5 air mi SE of Del Norte.
Rock outcrops in pinyon/juniper woodland with scattered Douglas fir on west-facing slope. Phenology: fruiting.

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: Rio Grande National Forest: Moon Pass, California Gulch, Forest Road 675, ca 27 air mi ENE of Creede.
Spruce/aspen forest on south-facing slope. Phenology: fruiting.

U.S.A., Colorado, Saguache County: [location and coordinates withheld]
Irrigation canal. Phenology: fruiting.

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: Rio Grande National Forest: Forest Road 675, South Fork Carnero Creek, ca 15 air mi WNW of La Garita.
Creekside and open meadow. Phenology: flowering & fruiting.

U.S.A., Colorado, La Plata County: Eastern San Juan Mountains: San Juan National Forest: Weminuche Wilderness: Eolus and North Eolus Peaks, Needles Creek Trail, N of Chicago Baisin, Needleton Creek Trailhead, ca 15.5 air mi SSE of Silverton.
Mixed conifer forest with openings at canyon mouth and along river. Phenology: fruiting.
with Kurt Flaig

U.S.A., Colorado, Saguache County: Eastern San Juan Mountains: Rio Grande National Forest: Forest Road 787, Salt House, Forest Boundary, W of Saguache Park, ca 23 air mi NE of Creede.
Aspen forest. Phenology: flowering & fruiting.

U.S.A., Colorado, Hinsdale County: Eastern San Juan Mountains: San Juan National Forest: Weminuche Wilderness: Pine Creek Trail, Los Pinos River.
Mixed conifer forest in canyon with southeast-facing upslope and river with open meadows and willow thickets. Phenology: fruiting.

U.S.A., Colorado, Hinsdale County: Eastern San Juan Mountains: Brown Lakes State Wildlife Area: Colo Hwy 149, Forest Road 515, ca 16 air mi W of Creede.
Open meadow by lake shore with spruce forest on west-facing slope. Phenology: flowering & fruiting.

U.S.A., Colorado, Clear Creek County: Arapaho National Forest: Front Range: E of Colo Hwy 103, ca 0.5 air mi N of Chicago Forks Campground, ca 6 air mi SW of Idaho Springs.
Roadside. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Arapaho National Forest: Rabbit Ears Range: North Fork Cabin Creek along Cabin Creek Road, ca 3 mi W of Colo Hwy 125, ca 9 air mi N of Hot Sulphur Springs.
Along creek and roadside. Phenology: fruiting.

U.S.A., Colorado, Grand County: Middle Park: Wolford Mountain Dam on Muddy Creek, ca 4 air mi NNW of Kremmling, and ca 1 mi W of Wolford Mountain.
Area of standing water along creek. Phenology: flowering & fruiting.

U.S.A., Colorado, Clear Creek County: Arapaho National Forest: Front Range: West Chicago Creek along Colo Hwy 103, ca 5.5 air mi WSW of Idaho Springs and ca 5 mi E of Georgetown.
Along road and creek. Phenology: fruiting.

U.S.A., Colorado, Grand County: Middle Park: S of Colorado River, ca 1.5 air mi W of Parshall and ca 10.5 air mi E of Kremmling.
Dry pond. Phenology: fruiting.

U.S.A., Colorado, Grand County: Middle Park: Pass Creek just N of Colo Hwy 134, ca 3 air mi NW of Wolford Mountain and ca 6.5 air mi NW of Kremmling.
Along creek. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Middle Park: Wolford Mountain Reservoir, ca 7.5 air mi NNW of Kremmling and ca 3.5 air mi NW of Wolford Mountain.
Sedimentary slopes and drainages adjacent to reservoir. Phenology: fruiting.

U.S.A., Colorado, Grand County: Rabbit Ears Range: Antelope Creek, ca 12.5 air mi NNE of Kremmling and ca 18.5 air mi NW of Hot Sulphur Springs.
Along dry irrigation ditch. Phenology: flowering & fruiting.
with Tony Sloan

U.S.A., Colorado, Grand County: Middle Park: Sulphur Gulch, ca 6 air mi WNW of Kremmling and ca 9 air mi W of Hot Sulphur Springs.
Gulch. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Middle Park: Junction Butte Wetland Project along Colorado River, ca 1.5 air mi ESE of Kremmling and ca 9.5 air mi W of Parshall.
Along river. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Middle Park: Muddy Creek, ca 2 air mi NNW of Kremmling and ca 2 air mi SW of Wolford Mountain.
Drainage gully through sagebrush. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Gros Ventre Area: Game Creek, ca 6-7 air mi N of Hoback Junction.
Open stream area and lower slopes, calcareous. Phenology: fruiting.
Annotated by Robert D. Dorn in 2000.

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: on and below Continental Divide above Spring and Low creeks at Twin Groves, ca 19.5 air mi WSW of Saratoga.
In old sheep pens at edge of lodgepole pine-aspen forest. Phenology: flowering & fruiting.
Annotated by Robert D. Dorn in 2000.

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: ca 10 mi NNW of Blackhall Mountain.
Rolling sagebrush-grassland. Also S20. Phenology: flowering & fruiting.
Annotated by Robert D. Dorn in 2000.
with Lee Huston and Sunny Kastning

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: Raven Mesa, ca 2.5 air mi S of Paonia Reservoir.
On top of mesa; oak forest and open meadow; sagebrush, Prunus, Amelanchier, and Symphoricarpos. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: [location and coordinates withheld]
Uplands near constructed wetland along river. Phenology: flowering & fruiting.
with John Gutrich

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 4.5 air mi ESE of Parlin.
Wet drainage (no surface water); Salix and Pentaphylloides. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 1.5 air mi NE of Parlin.
Sagebrush hills. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: West Elk Wilderness: ca 10 1/4 air mi S of Kebler Pass.
Burned Engelmann spruce forest (ca 10 years old); aspen (6-10 ft high), fireweed, Ribes, and Sambucus. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Forest Road 421 in Canada Biscara, ca 3/4 air mi N of U.S. Hwy 64, ca 1 air mi W of Tusas Ridge and ca 10 air mi NW of Tres Piedras.
Cattle-grazed meadows along drainage areas with Chrysothamnus nauseosus. Phenology: fruiting.

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

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: ca 2 to 3 air mi NW of Tres Piedras, Palmer Canyon to granite batholith SE of Tom Bryan Canyon.
Ponderosa pine woodland and granite; granite. Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: ca 1 air mi W of Tres Piedras crossroads, just N of Tres Piedras Canyon.
Granitic outcrops with degradation products in between. Phenology: fruiting.

U.S.A., Colorado, Saguache County: Southern Gunnison Basin: Cochetopa Hills: ca 2.2 air mi NNW of Cochetopa Pass; ca 5.5 air mi SE of Cochetopa Dome; ca 19 air mi SW of Sargents along Forest Road 805-1A.

U.S.A., Colorado, Saguache County: Southern Gunnison Basin: ca 4.3 air mi NW of Razor Creek Dome; ca 8 air mi NE of Agency Peak; ca 20 air mi WSW of Sargents along Colo Hwy 114.
Roadside riparian. Phenology: flowering & fruiting.

U.S.A., Colorado, Saguache County: Southern Gunnison Basin: ca 4.8 air mi S of Sawtooth Mountain; ca 0.6-2.6 road mi from intersection with Forest Road 788 (mostly between the first and second gates); ca 17.8 air mi ENE of Lake City on Forest Road 806.
Sagebrush-dominated openings in mixed conifer foothills. Phenology: flowering & fruiting.

U.S.A., Colorado, Saguache County: Southern Gunnison Basin: Cochetopa Park: Gunnison National Forest: north side of Forest Road 804, ca 1.5 road mi from intersection with County Road NN-14; ca 2.2 air mi ESE of Cochetopa Dome.
Ash beds in mountain parkland. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: San Juan Mountains: ca 6.8 air mi W of Round Mountain, ca 7.3 air mi SSE of Halfway House.
Open mixed conifer woodland. Phenology: fruiting.
Annotated by Ronald L. Hartman in 2008.

U.S.A., Wyoming, Albany County: Wetlands and Adjacent Areas: Little Laramie River, ca 5 air mi SE of Centennial.
Dry uplands with Artemisia. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Wetlands and Adjacent Areas: New Fork River, ca 21 air mi S of Pinedale.
Dry uplands. Phenology: fruiting.

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

U.S.A., Wyoming, Albany County: Wetlands and Adjacent Areas: Mortenson Lake, ca 16 mi SW of Laramie.
Sandy, dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Wetlands and Adjacent Areas: Horsetail Creek, ca 7 air mi E of Kelly; ca 14 air mi NE of Jackson.
Dry, rocky uplands and hillside. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Park County: Yellowstone National Park: Soda Butte.
On the disintegrated formation. Phenology: flowering & fruiting.
with Elias Nelson

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

U.S.A., Wyoming, Albany County: Centennial: [Middle Fork Little Laramie*].
In waste ground. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Centennial.
Bottom lands. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Near Big Piney
42.598° N, 110.1551° W; NAD 83, uncertainty 0.75 mi., Digital Map
Moist alkali flat. Phenology: flowering & fruiting.
with Lois B. Payson

U.S.A., Wyoming, Albany County: Cooper Creek Meadow, 1/4 mi W I-80.
Meadow. Phenology: flowering & fruiting.
Accession: USFS 620779

U.S.A., Wyoming, Albany County: Rock River.
Phenology: flowering & fruiting.
Annotated by B. E. Nelson in 2002.

U.S.A., Wyoming, Albany County: Rock River.
Disturbed ground. Phenology: fruiting.

U.S.A., Wyoming, Albany County: Laramie.
Annotated by B. E. Nelson in 2002.
J. Francis Macbride, s.n.. //1913.

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

U.S.A., Wyoming, Fremont County: Bonneville National Forest: NW of Dubois.
Phenology: fruiting.
Accession: USFS 404221, Barcode: USFS0056065

U.S.A., Wyoming, Albany County: Rock River.
Disturbed ground. Ecological Survey of Vegetative Succession under Irrigation. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: general route - west gate (Sulphur Springs Road) N along west side fence to Sulphur Point and San Antonio Mountain E on road to 9200 ft and bushwack to Sulphur Springs Road; just S of Sulphur Point.
Rocky slopes in mixed conifers. Phenology: fruiting.

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

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: northern part of Green Ridge on Forest Road 285, ca 7-7.5 air mi SE of Oak Creek; ca 4.5 air mi NE of Yampa.
Small meadows in mixed conifer forest. Phenology: flowering & fruiting.

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: on the east side of Green Ridge just N of Muddy Slide (The Slide), ca 6-6.5 air mi E of Yampa; ca 9.5-10 air mi SE of Phippsburg.
Open area among aspen-subalpine fir on Mancos shale. Phenology: fruiting.

U.S.A., Colorado, Jackson County: North-central Colorado: Rabbit Ears Range: along the Continental Divide ca 0.5-1 air mi NW of Chimney Rock, ca 8 air mi ESE of Muddy Pass; ca 27.5 air mi SSW of Walden.
Disturbed areas. Phenology: fruiting.

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: along Forest Spur Road 471.1 from Forest Road 471 to upper Long Draw, NE of Mount Candy, ca 2.5 air mi SE of Clark; ca 14 air mi N of Steamboat Springs.
Roadside and parking area. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: off of G Road just above F Road, ca 1 air mi N of Cerro Santa Rosa, just N of Valle San Antonio, ca 12.5 air mi NW of Los Alamos.
Logged ponderosa pine forest. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: from 3/4 mi E to N35.9775 W106.4870 in Rito de los Indios drainage, ca 3/4 air mi N of north summit of Cerros de Trasquilar, ca 12.5 air mi NW of Los Alamos.
Disturbed areas. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: from tributary of Rito de los Indios NW to summit of ridge, ca 1 1/2-1 3/4 air mi N of north summit of Cerros de Trasquilar, ca 13 air mi NW of Los Alamos.
Open, grassy slopes with scattered ponderosa pine. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: along G Road ca 1 3/4 mi N of F Road, ca 2 1/2-2 3/4 air mi N of Cerro Santa Rosa, ca 13.5 air mi NW of Los Alamos.
Meadow. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: on the ridge W of Valle Grande, ca 1 1/4-1 3/4 air mi N of Ranch Headquarters, ca 12.5 air mi W of Los Alamos.
Roadside through mixed conifer forest. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: ridge S and E of Valle Jaramillo, ca 1 air mi NW of Cerro Pinyon, ca 12 air mi W of Los Alamos.
Clearcut Douglas fir forest with mostly blue spruce/white fir regeneration. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: along K Road at the northeast base of San Antonio Mountain from N35.9449 W106.5925 to N35.9437 W106.5989, ca 17 air mi W of Los Alamos.
Roadside and adjacent open mixed conifer/aspen forest. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: along the northeast and north side of San Antonio Mountain to the west boundary, ca 17-18 air mi WNW of Los Alamos.
Along old logging road, mixed conifer/aspen forest, and clearings. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: on the south side of Cerros del Abrigo along the Abrigo Trail for 0.3 mi on either side of N35.9232 W106.4768, ca 10-10.5 air mi WNW of Los Alamos.
Along old logging road, roadcut, and adjacent southwestern white pine/white fir/Douglas fir forest. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: on the east slope of Cerros del Abrigo above the Abrigo Trail for 0.3 mi on either side of N35.9301 W106.4726, ca 10-11 air mi WNW of Los Alamos.
Along old logging road, slopes in open mixed conifer/aspen forest, and open areas. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Alamo Canyon, south side over a mi stretch to near lower end.
Scattered at edge of wet area over lower half of boggy portion. Phenology: fruiting.
with Jonathan Coop

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Puerta de Trasquilar NW up end of Trasquilar.
South exposure with oak and aspen. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Valle Jaramillo, near "B" and "M" road intersection.
Grassy meadow with creek and mud areas on slope with upwelling of water. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Valle Toledo: crossing of Pipeline Road and San Antonio Creek to 0.4 air mi to NE then S to 0.3 air mi upstream.
Wetlands along creek to slopes to N with upwellings (seeps) with barren ground and adjacent "bouncy" ground (like a bog). Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: East Fork Jemez River, short segment in Preserve ca 1 air mi SW of El Cajete (center of caldera).
Along river with blue spruce and white fir on slopes, willow and birch scattered on bank. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Banco Bonito, 0.8-0.9 air mi NE of southwest corner of Preserve.
Roadside through ponderosa pine. Phenology: fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Pajarito Mountain, ca 1 air mi WNW of summit.
Lower grassy slopes to scattered ponderosa pine. Phenology: flowering & fruiting.

U.S.A., Colorado, Park County: 2 mi N of Guffey.
Semi-shade; gravelly soil. Phenology: fruiting.
Annotated by B. E. Nelson in 2005.
Accession: USFS 461377

U.S.A., Colorado, Montrose County: Paradox.
Dry valley bottoms. Phenology: fruiting.
Annotated by Ronald L. Hartman in 2008.

U.S.A., Colorado, Mesa County: Badger Wash.
Salt desert shrub. Phenology: fruiting.

U.S.A., Colorado, Mesa County: Badger Wash.
Salt desert shrub. Phenology: fruiting.
Annotated by Jane W. Roller.

U.S.A., Colorado, Routt County: Yampa.
Phenology: fruiting.

U.S.A., Colorado, Grand County: Hot Sulfur Springs.
Phenology: fruiting.
George E. Osterhout, 3242. 6/8/1906.

U.S.A., Colorado, Larimer County: Chamber's Lake.

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

U.S.A., Colorado, Grand County: Hot Sulfur Springs.
George E. Osterhout, 7659. 6/8/1906.

U.S.A., Colorado, Clear Creek County: Bakerville, above Graymont.
In deep alluvium of stream bench. Phenology: fruiting.
1.
Annotated by C. Leo Hitchcock in 2005.

U.S.A., Colorado, Clear Creek County: Idaho Springs

U.S.A., Colorado, Moffat County: Carr Ranch
In dry draws; sagebrush; 10% slope; clay loam soil. Phenology: flowering & fruiting.

U.S.A., Colorado, Rio Grande County: Monte Vista: near the Rio Grande National Forest:
Meadow; level slope; sandy loam. Phenology: fruiting.

U.S.A., Colorado, Park County: Near U.S. Hwy 285, ca 1.5 mi W of Grant.
with Kathryn W. Rollins

U.S.A., Colorado, no county County: White River National Forest.
Rather dry places; soil: gravel and sand silt; shade or sun. Phenology: fruiting.
Thomas C. Parkinson, 19. 8/4/1913.

U.S.A., Colorado, Gunnison County: Vicinity of Mount Carbon.
Elev. 2700 m.

U.S.A., New Mexico, Sandoval County: Rito de los Frijoles.
Annotated by Ronald L. Hartman in 2008.

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Flat Tops Wilderness: Lost Solar Creek, ca 24 air mi NNW of Glenwood Springs.
Slopes above creek and meadows, with scattered clumps of Engelmann spruce, subalpine fir, and aspen. Phenology: fruiting.
James P. Vanderhorst, 1614. 8/11/1990.

U.S.A., Wyoming, Sublette County: Upper Green River Basin: Cretaceous Mountain/Hogsback Ridge Area: ca 15 air mi SW of Big Piney.
Shady slopes with sagebrush. Phenology: fruiting.

U.S.A., Wyoming, Park County: Northern Absarokas: south end of Bald Ridge, 3-4 air mi NE of Dead Indian Pass, ca 23 air mi NW of Cody.
Grassy slopes. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Southeast edge of Trail Lake at inlet of Torrey Creek, ca 8.2 air mi SSE of Dubois; ca 6.9 mi S on Trail Lake Road.
Sagebrush grassland. Phenology: fruiting.
with Georgia Haines

U.S.A., Wyoming, Sweetwater County: Green River Basin: east side of Pine Mountain, just below summit.
Rocky slopes with sagebrush, zone of fir and lodgepole pine, with seepages and small openings, zone of aspen above this, and a few limber pine near top; on top, along trail. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: West Slope Wind River Range: South Pass, on W side of Wyoming Highway 28, ca 1.5 mi NE of bridge over Sweetwater River, ca 6 air mi SW of South Pass City.
Dry, sandy-rocky roadside in barren sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Boulder Creek, 0.5 air mi NW of Boulder.
Streamside, marshy areas, and beneath Populus angustifolia. Phenology: fruiting.
with Tom Cramer

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 4.5 air mi S of Boulder.
Riverside meadows and cottonwood/willows with adjacent sagebrush. Phenology: flowering & fruiting.
with Jane T. Kellett

U.S.A., Wyoming, Fremont County: Green River Basin: West Willow Creek and vicinity, ca 2.5 air mi NW of South Pass City.
Sagebrush hillsides, streamsides, meadows, and granite outcrops. Phenology: flowering & fruiting.

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

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

U.S.A., Wyoming, Sublette County: Green River Basin: Green River, ca 6.5 air mi W of Pinedale.
Riverside mudbanks, sloughs, meadows, and willows and sandstone bluffside. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 3 air mi WNW of Boulder.
Riverside meadows, willows and cottonwoods, stagnant ponds, irrigation ditchsides, and piney bluffside. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: along Oregon Trail Draw, ca 4 air mi W of Big Sandy.
Sandstone outcrop in sagebrush. Phenology: flowering & fruiting.

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: W of Colo Hwy 69 on Forest Road 559, S of Westcliffe.
Mixed conifer. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Vermejo Park Ranch: flats on east side of Casias Creek 0.9 air mi SE of Beaver Lake; Costilla Creek valley.
Gravelly glacial outwash plain covered by dry meadows with Festuca arizonica, Oxytropis lambertiii, and Erigeron flagellaris. Plant bushy-branched, erect, to 35 cm tall; apparently an annual; single robust plant in patch of disturbed soil. Photographed. Specimen GPS: 36.924618, -105.263069. Phenology: flowering & fruiting.
Annotated by Ben Legler on 3/25/2009.

U.S.A., Colorado, Saguache County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: North Rock Creek, ca 2.5 road mi E of Alder.
Oak woodlands intermixed with grassy slopes. Phenology: fruiting.
Annotated by Brian Elliott.

U.S.A., Colorado, Saguache County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Hayden Pass Creek, Forest Service boundary NE to roadside mine, toward Hayden Pass.
Annotated by Brian Elliott.

U.S.A., Montana, Valley County: On Little Beaver Road just inside BLM boundary, ca 1 air mi NE of January Reservoir, ca 8.5 air mi SW of Glasgow.
Rolling grassland-forbs on clay soil with gullies and drainages. Phenology: flowering & fruiting.
with Joseph L. M. Charboneau

U.S.A., Montana, Beaverhead County: Pioneer Range: first canyon S of Sheep Mountain.
Waste ground near head of canyon. Phenology: fruiting.
with C. V. Muhlick

U.S.A., Montana: Absaroka National Forest.
T6N R11E S6

U.S.A., Montana, Beaverhead County: Beaverhead National Forest: Battlefield Ranger Station
Slope 5% east; shallow gravelly loam soil; grassland associated with Agr, Bro, and Hor. Scattered to moderate abundance. Phenology: fruiting.

U.S.A., Montana, Blaine County: Black Coulee National Wildlife Refuge: Black Coulee, ca 10.5 air mi S of Turner, ca 21 air mi NE of Harlem; ca 34.5 air mi NW of Malta.
Alkaline silty hardpans. Phenology: fruiting.
Joseph L. M. Charboneau, 8343. 7/30/2011.

U.S.A., Wyoming, Carbon County: Sierra Madre: above Bottle Creek, ca 6 air mi WSW of Encampment.
T14N R85W S13
Open dry slope. Rare. Phenology: fruiting.

U.S.A., Wyoming, Carbon County: Sierra Madre: South Fork Miner Creek, ca 8 air mi SSW of Encampment.
T13N R84W S8
Moist soil, next to old timber road. Several plants. Phenology: fruiting.

U.S.A., Wyoming, Carbon County: Sierra Madre: above South Fork Miner Creek, ca 8 air mi SW of Encampment.
Old forest road. Few plants. Phenology: fruiting.

U.S.A, Idaho, Custer County: Challis National Forest: Eastern Boulder Mountains: valley of the North Fork Big Lost River, between Jim Canyon and unnamed draw to the NW, 17.7 air mi NNE of Sun Valley.
25-75 plants estimated in xeric coarse textured soil within roadside vegetation, no slope, alluvial geology. 25-75 plants estimated. Phenology: fruiting.
with Ben Legler

U.S.A., Montana, Beaverhead County: Beaverhead River, ca 1 air mi W of Dillon at Cornell Park.
Disturbed ground in a city park along a river. Phenology: fruiting.
1. Lepidium ramosissimum A. Nelson var. bourgeauanum (Thell.) Rollins.

U.S.A., Wyoming, Lincoln County: Overthrust Belt: Fossil Butte National Monument, main stem of Chicken Creek above confluence with East fork; ca 1.3 mi N of monument boundary, 2.5 mi NW of Fossil and US Hwy 30, 13 mi W of Kemmerer.
Hordeum brachyantherum-Juncus arcticus-Carex praegracilis community in moist bottom on clay-rich soil. Veg cover 75-85%.

Lepidium ramosissimum var. divergens (2003)
Lepidium ramosissimum A. Nelson var. divergens (Osterh.) Rollins
U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Shadow Mountain Lake: Green Ridge Forest Service Work Station, ca 2.5 air mi SW of Grand Lake.
Open disturbed areas and lakeside. Phenology: fruiting.

Lepidium ramosissimum var. divergens (2003)
Lepidium ramosissimum A. Nelson var. divergens (Osterh.) Rollins
U.S.A., Colorado, Grand County: Arapaho National Forest: Rabbit Ears Range: Buffalo Creek, ca 15.5 air mi NW of Granby; ca 15 air mi NE of Parshall.
Along small intermittent stream adjacent to sagebrush slope. Phenology: fruiting.

Lepidium ramosissimum var. divergens (2004)
Lepidium ramosissimum A. Nelson var. divergens (Osterh.) Rollins
U.S.A., Colorado, Grand County: Middle Park: just W of Williams Fork Reservoir on Big Lake Ditch, ca 4 air mi SW of Parshall and ca 9 air mi ESE of Kremmling.

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

U.S.A., Colorado, Grand County: Middle Park: Round Creek, ca 11.5 air mi NE of Kremmling and ca 13.8 air mi NW of Hot Sulphur Springs.

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 9.5 air mi ENE of Parlin.
Along creek; Salix. Phenology: flowering & fruiting.

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 2 1/4 air mi NNE of Parlin.
Around spring; Eleocharis and Salix. Phenology: fruiting.

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: 3.5-4.5 air mi SW of Delaney Butte, ca 14-15 air mi WSW of Walden.
Roadside, sagebrush flats, and irrigation ditch. Phenology: fruiting.

U.S.A., Colorado, Pitkin County: Holy Cross National Forest.
Open grass; 2% north slope; gravelly loam soil. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Sulphur Springs.

U.S.A., Colorado, Lake County: Leadville.
Along the track. Phenology: flowering.

Lepidium ramosissimum var. divergens ()
U.S.A., Colorado, no county County: Arapaho National Forest.
Label "Revised Apr. 15, 1913" Phenology: fruiting.
S. W. Jarnell, 17. //.

Lepidium ramosissimum var. divergens ()
U.S.A., Colorado, no county County: Arapaho National Forest.
Label revised 15 Apr 1913 Phenology: fruiting.

U.S.A., Colorado, Saguache County: Cochetopa National Forest: E of Saguache.
Along roads with weeds and grasses; level slope; black loam soil. Phenology: flowering & fruiting.

Lepidium ramosissimum var. ramosissimum (1998)
Lepidium ramosissimum A. Nelson var. ramosissimum
U.S.A., Wyoming, Fremont County: Wind River Range: Torrey Creek Trailhead at end of road, 8 mi SSE of Dubois.
Disturbed sagebrush grassland with scattered limber pine and with Artemisia tridentata var. vaseyana, Agropyron spicatum, and Eriogonum brevicaule.

Lepidium ramosissimum var. ramosissimum (2004)
Lepidium ramosissimum A. Nelson var. ramosissimum
U.S.A., Colorado, Grand County: Rabbit Ears Range: along First Creek off County Road 21, ca 1.5 air mi S of Grouse Mountain, ca 4.5 air mi N of Parshall; ca 5 air mi NW of Hot Sulphur Springs.
Disturbed areas in open aspen/lodgepole pine forest. Phenology: flowering & fruiting.
1. Lepidium ramosissimum A. Nelson var. ramosissimum
Annotated by Erin Foley.
with Daniel Mullendore

Lepidium ramosissimum var. ramosissimum (2004)
Lepidium ramosissimum A. Nelson var. ramosissimum
U.S.A., Colorado, Grand County: Arapaho National Forest: Rabbit Ears Range: Willow Creek at the junction of Willow Creek and Buffalo Creek, ca 13.5 air mi NW of Granby and 12.5 air mi NNE of Hot Sulphur Springs; along Colo Hwy 125.
Along creek. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Middle Park: Ute Bill Creek, ca 4 air mi NW of Hot Sulphur Springs and ca 6 air mi NE of Parshall.
Riparian flat with intermittent stream. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Middle Park: Kinney Creek, ca 3.5 air mi NE of Hot Sulphur Springs and ca 8 air mi WNW of Granby.
Drainage through lodgepole pine and sagebrush; area heavily grazed by cattle. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Middle Park: Parshall Divide, ca 1.5 air mi WSW of Hot Sulphur Springs and ca 2.5 air mi ENE of Parshall.
Disturbed area in meadow. Phenology: flowering & fruiting.

U.S.A., Colorado, Grand County: Rabbit Ears Range: Coal Mountain Access, Troublesome Wilderness: ca 15 air mi NW of Hot Sulphur Springs and ca 17 air mi NE of Kremmling.
Disturbed area adjacent to meadow. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: ca 13.5 air mi N of Cokeville; Sublette Range at Raymond Creek.
Heavily cattle-tromped roadside. Phenology: flowering & fruiting.
Annotated by R. D. Dorn & B. E. Nelson in 2002.

U.S.A., Colorado, Larimer County: North-central Colorado: Slough Creek 0.5-1 air mi NW of Hohnholz Lake #3.
Badlands on side of ridge and into stream bottom, seasonal. Phenology: fruiting.
with Sarah Nunn

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Carracas Mesa, saddle at the head of Toro Canyon on Forest Road 218, ca 2 air mi N of Canyon Bancos, ca air mi of Dulce.
Clearing with large disturbed areas. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Cruces Basin Wilderness Area: Cruces Creek S of Cruces Spring, ca 15 air mi WSW of Sublette, ca 5 air mi S of Colorado.
Creek riparian area with Salix species, Alnus tenuifolia, and Picea engelmannii; surrounding dry meadows with Festuca arizonica and Potentilla hippiana. Phenology: fruiting.
with Robert Peters

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: on BLM Road to Cerro del Aire near old homestead and railroad grade just E of U.S. Hwy 285, ca 1 3/4 air mi S of No Agua and ca 3 air mi NNE of Tres Piedras.
Along dirt road in open area of Artemisia tridentata. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Wetlands and Adjacent Areas: Saratoga Lake, ca 1.5 air mi NE of Saratoga.
Sandy, dry uplands with Artemisia. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Wetlands and Adjacent Areas: Twin Buttes Reservoir, ca 15 air mi SW of Laramie.
Moist sandy beach. Phenology: flowering & fruiting.

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, Albany County: Wetlands and Adjacent Areas: Lake Hattie Reservoir, ca 17 air mi SW of Laramie.
Rocky clay uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Plains.
Road sides. Phenology: fruiting.
Annotated by R. D. Dorn & B. E. Nelson in 2002.
with Ruth A. Nelson

U.S.A., Wyoming, Albany County: Laramie [University Campus*].
In dry, hard ground on the plains. *Field book Phenology: fruiting.
Annotated by R. D. Dorn & B. E. Nelson in 2002.
with Elias Nelson

U.S.A., Wyoming, Albany County: Laramie.
Open plains. Phenology: fruiting.

U.S.A., Wyoming, Albany County: University Campus.

U.S.A., Wyoming, Albany County: 603 Ivinson Avenue.
Weeds on ground of Laramie Plains Museum. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Bridger National Forest: Kendall Ranger Station pasture.
Old bedgrounds; rich loam soil. Phenology: fruiting.
Charles H. McDonald, McD&Ch-4. 7/14/1926.
with Harry A. Cheeseman

U.S.A., Wyoming, Albany County: Vacant lot in Laramie.
41.305° N, 105.5893° W; NAD 83, uncertainty 0.5 mi., Digital Map
with Lois B. Payson

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River: along the river ca 0.5 mi E of Eagle Creek, ca 44 mi W of Cody.

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

U.S.A., Wyoming, Albany County: Great Divide Basin and adjacent regions: near County Road 44 between Wyo Hwy 130 and Wyo Hwy 230, W of Laramie.

U.S.A., Wyoming, Sublette County: Kilgore Creek.
Dry meadows and willow bottoms along creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Pacific Creek.
Sand and gravel bars, with Stephanomeria and Heterotheca. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Gros Ventre River Drainage: Cottonwood Creek at confluence of Falls Creek, ca 5 air mi N of Gros Ventre River.
Sand and gravel bar on east bank of river; with Agrostis and Epilobium suffruticosum. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Basin: plain on south side of Spring Creek immediately north of I-80 at U.S. Hwy 287 exit, on south side of Laramie.
Clay flats dominated by Sarcobatus vermiculatus on gray heavy alkali soil with understory of Cardaria, Descurainia sophia, and Distichlis spicata. Phenology: fruiting.

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

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: County Road 8A, 1 mi from County Road 8, then SE on hogback to gap.
Sagebrush and sandstone outcrops with ponderosa and limber pine. Phenology: fruiting.
1. Lepidium ramosissimum A. Nelson var. ramosissimum

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Fish Creek/Moccasin Basin area, along Red Creek, ca 8 air mi SW of Togwotee Pass, ca 33 air mi ENE of Jackson.
Old jeep trail. Phenology: flowering & fruiting.
1.
Annotated by Walter Fertig in 2002.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: along Purdy Creek NE of South Fork Fish Creek, ca 31.5-32 air mi ENE of Jackson.
Along old road. Phenology: fruiting.
Annotated by Walter Fertig in 1996.
1.

U.S.A., Wyoming, Fremont County: Absaroka Mountains: ca 7 air mi NNE of Dubois, south side of Spring Mountain.
Dry bank. Phenology: fruiting.
Robert S. Kirkpatrick, 4072. 7/15/1984.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Fish Creek/Moccasin Basin Area, Squaw Creek Road from North Fork Fish Creek to Open Fork Creek.
Sagebrush grassland. Phenology: flowering & fruiting.
Annotated by Walter Fertig in 2002.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Cottonwood Creek from outfitter's camp to Sohare Creek.
Meadows and scattered lodgepole pine and Engelmann spruce. Phenology: fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Cottonwood and Moosehorn Creeks.
Meadows and adjacent lodgepole pine stands. Phenology: fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: South Fork Fish Creek between Hackamore and Bell Creeks.
Meadows, gravel bars, and adjacent lodgepole pine forests. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: Lime Creek, across Green River from Kendall Warm Springs, ca 11 air mi W of Green River Lakes.
Limestone outcrops with stream on rolling sagebrush slopes. Phenology: fruiting.
with Jonathan Hughes

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: New Fork River, ca .3 mi W of spillway of New Fork Lakes Dam, ca 16 air mi NNW of Pinedale.
Sagebrush clearing. Phenology: flowering & fruiting.
Annotated by R. D. Dorn & B. E.Nelson in 2002.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: trail to New Fork Lookout Point, ca 19 air mi NNW of Pinedale.
Rocky sagebrush hillside. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: adjacent to Forest Road 30410 and Cottonwood Creek, ca 26 air mi E of Jackson.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: North Fork Fish Creek, ca 32 air mi NE of Jackson.
Sagebrush meadow. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: North Fork Fish Creek Basin, ca 37 air mi NE of Jackson. Also sec 17 and 19.
Sunny, sagebrush meadow adjacent to Fish Creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Little Devils Creek Basin, ca 36 air mi E of Jackson.
South-facing dry sagebrush slope. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: adjacent to Big Sandy Opening Road, ca 35 air mi ESE of Pinedale.
Dry, sandy-rocky sagebrush grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Tunp Range: Rock Creek Ridge, from Pine Creek Ski Area
Grassy and wooded slopes. Phenology: flowering & fruiting.
with Charmaine Refsdal

U.S.A., Wyoming, Sublette County: Green River Basin: North Cottonwood Creek just E of Bridger-Teton National Forest, ca 7 air mi W of Halfway.
Willow river bottom, adjacent meadows, aspen groves, and Douglas fir forest. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Southern Sublette Range: Chalk Creek, ca 7 air mi N of Cokeville.
Hillside seeps, streamside, and sagebrush canyon bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: bank of Green River just S of Bridger-Teton Forest Boundary, ca 19 air mi N of Cora.
Riverside willows, meadow, and adjacent sagebrush. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: East Fork River, ca 6 air mi E of Boulder.
Riverside meadows, willows, and mudflats. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: North Piney Creek and Park Creek, ca 19 air mi WNW of Big Piney.
Streamside meadows and patches of aspen, Douglas fir, spruce, and willows, and open south-facing hillside. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Green River Supply Canal, ca 7 air mi S of Daniel.
Canal edge, meadows, willows, and sagebrush. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: South Rim, ca 8 air mi NW of Warren Bridge.
Douglas fir and lodgepole pine forest hillside, ridgetop meadows, and bottom sagebrush wetlands. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Chimney Butte Reservoir, ca 13 air mi N of La Barge.
Drying reservoir and surrounding sagebrush flats. Phenology: fruiting.
with Ben and Becky Cramer

U.S.A., Wyoming, Sublette County: Green River Basin: South Cottonwood Creek, ca 11 air mi WSW of Daniel.
Roadside and sagebrush hillside above creek. Phenology: fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Camp Creek, ca 23 air mi WNW of Big Piney.
Creekside willow thickets and meadows. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Bald Mountain, ca 21 air mi WNW of Big Piney.
Mountainside meadows and aspen groves. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Bible Rock S of County Road 320, ca 9.2 air mi S of Medicine Bow townsite.
Sagebrush-grassland leading into north-facing slope of mountain mahogany and snowberry. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Dugway Rim S of old Casper-Medicine Bow Road, ca 10.5 air mi NE of Shirley Basin townsite.
Gravelly south-facing draw; sagebrush, snowberry, fescue, and wild buckwheat common. Phenology: flowering & fruiting.

U.S.A., Montana, Park County: Beartooth Mountains: Custer National Forest: E of U.S. Hwy 212 and Clarks Fork Yellowstone and Broadwater rivers on trail to Vernon Lake, ca 31-32.5 air mi WSW of Red Lodge.
Moist spruce-fir forest with Vaccinium dominating the understory. Phenology: fruiting.
with Brian Elliott and Bonnie Hiedel
Accession: USFS 864245, Barcode: USFS0045104

U.S.A., Wyoming, Albany County: Laramie Plains: E of Twin Buttes off County Road 44 (Big Hollow Road), ca 14 air mi WSW of Laramie.
41.2482° N, 105.8525° W; NAD 83, uncertainty 0.5 mi., GPS reading
Salty, selenium-rich plains. Phenology: fruiting.
with Bonnie Heidel, Richard McNeill, Benjamin S. Legler

U.S.A., Montana, Lewis and Clark County: Virginia Creek, ca 12 mi NW of Silver City.
Roadside wood along creek. Phenology: flowering.

U.S.A., Montana, Valley County: Tomato Can Creek, along Fossum Road, ca 4 air mi S of Saskatchewan, ca 19 air mi WNW of Opheim; ca 53 air mi NNW of Glasgow.
Joseph L. M. Charboneau, 7236. 7/9/2011.

U.S.A., Montana, Valley County: Glasgow Base Ponds, W of Mont Hwy 24, ca 4.5 air mi W of Porcupine Creek, ca 3.5 air mi NW of St. Marie; ca 18 air mi N of Glasgow.
Roadside. Phenology: fruiting.
Joseph L. M. Charboneau, 8807. 8/4/2011.

U.S.A., Wyoming, Albany County: Upper North Platte and Laramie River Drainages: Laramie Plains: Wheatland Reservoir No. 3 along Garrett Road, ca 16.4 air mi NE of Rock River.
Sagebrush, rabbitbrush, and mixed grasses around reservoir. Phenology: fruiting.