Lotus unifoliolatus (2002)
FABACEAE
Lotus unifoliolatus (Hook.) Benth.
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: upper end of Dry Fork Spring Creek on Heald or County Road 49, ca 8.5 air mi NE of Weston; ca 31 air mi NNE of Gillette.
Shore of reservoir. Phenology: flowering & fruiting.
Peter J. Ebertowski, 1368. 7/7/2002.
Accession: RM (unaccessioned)

Lotus unifoliolatus (2002)
FABACEAE
Lotus unifoliolatus (Hook.) Benth.
U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: Brosa Draw on County Road 116, ca 22 air mi N of Moorcroft; ca 36 air mi ENE of Gillette.
Creek bed. Phenology: flowering & fruiting.
Accession: RM (unaccessioned)

Lotus unifoliolatus (2003)
FABACEAE
Lotus unifoliolatus (Hook.) Benth.
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: tributary of Dry Fork Spring Creek, on York or Forest Road 900, ca 30 air mi NE of Gillette; ca 31 air mi NW of Moorcroft.
Narrow ravine lined by ponderosa pine. Phenology: fruiting.
Accession: RM (unaccessioned)

U.S.A., Arizona, Gila County: Tonto National Forest: William Spurlock home pasture.
Elev. 5300 ft.
T9N R13E S5
Gentle north slope; rocky clay loam soil; with grass, Erigeron, weeds. Phenology: flowering & fruiting.
Accession: USFS 506445

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Weiser River Valley: along Middle Fork Weiser River, ca 2-2.5 air mi E of U.S. Hwy 95, ca 6 air mi S of Council.
Elev. 3070 ft.
Roadside and cut throughout volcanic grassland. Phenology: flowering & fruiting.
with Joy Handley

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: West Mountains: along Middle Fork Weiser River, ca 6.5 air mi E of U.S. Hwy 95, ca 7 air mi SE of Council.
Roadside and cut in the canyon bottom. Phenology: flowering & fruiting.
with Joy Handley

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: West Mountains: just NNE of Potato Knob below Forest Road 214, ca 15 air mi SE of Council; ca 21 air mi E of Cambridge.
Roadside across volcanic slope. Phenology: flowering.
with Joy Handley

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: West Mountains: at the head of Bench Creek, ca 9 air mi NE of Council; ca 10 air mi S of New Meadows.
Roadside. Phenology: flowering.

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Long Valley: along the North Fork Payette River at Hartsell Bridge, ca 8.5 air mi SSW of McCall; ca 5 air mi NW of Donnelly.
Elev. 4860 ft.
Sandy river bottom with overflow channels and woodland patches. Phenology: flowering & fruiting.

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Weiser River Valley: Mesa Road off U.S. Hwy 95, ca 8 air mi S of Council; ca 12 air mi ENE of Cambridge.
Roadside grass and shrubland. Phenology: flowering.

U.S.A., Idaho, Adams County: [location and coordinates withheld]
Lakeside dominated by grass and Wyethia. Phenology: flowering.

U.S.A., Arizona, Gila County: Tonto National Forest: 3 Bar D.
T4N R10E S2
Slope 10% north; chaparral, with Quercus turbinella, Cercocarpus betuloides, Poa longiligula. Phenology: fruiting.
Annotations:
1. Lotus unifoliolatus (Hook.) Benth.
Annotated by Frederick J. Hermann.
Accession: USFS 506444

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: West Mountains: along the Weiser River just N of Evergreen, ca 7 air mi SW of New Meadows; ca 14 air mi W of McCall.
Mixed conifer overstory on west-facing river bank and roadside. Phenology: flowering.

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Hells Canyon-Seven Devils Scenic Area: along Forest Road 454 at Schoolmarm Gulch, ca 7 air mi N of Cuprum; ca 16 air mi NNE of Oxbow Dam.
Roadside of steep canyon dominated by grasses and shrubs, especially Rhus. Phenology: flowering & fruiting.

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Cuddy Mountains: Goodrich Creek Research Natural Area: along Goodrich Creek, ca 9 air mi SW of Council; ca 8 air mi NNE of Cambridge.
Roadside riparian area in grass and shrub rangeland. Phenology: flowering.
with Denise L. Fairbanks

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Weiser River Valley: just NE of Granger Butte, ca 7 air mi S of Indian Valley; ca 15 air mi SE of Cambridge.
Grass and shrub rangeland. Phenology: flowering & fruiting.

U.S.A., Idaho, Washington County: Payette National Forest and Vicinity: Weiser River Valley: Rush Creek Road, ca 4 air mi N of Cambridge; ca 14 air mi SW of Council.
Roadside in open shrub-grassland, basalt soil. Phenology: flowering & fruiting.
with Phillip G. Lawrence

U.S.A., Idaho, Washington County: Payette National Forest and Vicinity: Weiser River Valley: Deer Creek at powerline crossing, ca 5 mi W of Cambridge; ca 20 air mi SW of Council.
Dry creekbed. Phenology: flowering & fruiting.
with Phillip G. Lawrence

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Salmon River Mountains: along Forest Road 303, S of Threemile Creek, ca 4 air mi NE of New Meadows; ca 8 air mi NW of McCall.
Mixed conifer forest and plantation. Phenology: flowering.
with B. E. Nelson

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Long Valley: Warren Wagon Road (Forest Hwy 21) on west side of Payette Lake at crossing of Horse Creek.
Roadside and wooded drainage. Phenology: fruiting.

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Long Valley: Little Payette Lake, northwest corner.
Edge of lake and roadside. Phenology: flowering & fruiting.

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: road to Blue Creek and mouth of Indian Creek along Snake River.
Dry canyonland, dispersed powerline road, sumac/annual grass, rocky volcanic soil. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi NE of Hermosa and 4-4.5 mi W of County Road 121.
Clay water catchment site. Phenology: fruiting.

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

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: along Moss Agate Creek, ca 8.5 air mi WNW of Edgemont and ca 5 air mi N of U.S. Hwy 18.
Upland slopes of alkali clay and gravel, draw of wet, mucky clay. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 7 air mi SW of Kadoka.
On rolling prairie near the rim of a drainage/draw, in silty loam soils. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi SW of Kadoka.
In rock and clay pan seep of heavy clay hardpan soil. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 1.5 air mi SW of Kadoka.
In heavy clay pan/hardpan soils. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 9 air mi SE of Farmingdale.
On rocky buttes and upslopes eroding into shale. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 10.5-11 air mi SE of Farmingdale.
On rocky buttes and upslopes eroding into shale. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 8.5-9 air mi SW of Kadoka.
On gently rolling prairie with silt loam soils having a deep clay pan base. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 9 air mi SW of Kadoka.
On gently rolling prairie uplands with silt loam soils having a deep clay pan base. Phenology: flowering.

U.S.A., Arizona, Yavapai County: Prescott National Forest: Ranger Station.
T18N R6W S25
Level; deep clay loam soil; in grasses and weeds. Phenology: flowering.
Accession: USFS 506447

U.S.A., New Mexico, Hidalgo County: Coronado National Forest: Clanton Draw.
T32S R21W S18
Steep east slope; sandy loam soil; with gramas, large brome, Muhlenbergia. Phenology: fruiting.

U.S.A., Arizona, Cochise County: Chiricahua Mountains: Joe Smith's Ranch.
Sandy, springy draw. Phenology: flowering & fruiting.
Annotations:
Annotated by C. L. Porter in 1968.
Accession: RM 176158

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Lakeside Ranger Station.
T9N R22E S23
Wet canyon bottom; yellow pine forest. Phenology: fruiting.
with P. H. Roberts

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Oak Creek, ca 14 air mi N of Beulah; ca 25 air mi NE of Sundance.
Dry Quercus-Pinus uplands with fine black sand. Phenology: flowering.

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Oak Creek, ca 16 air mi NW of Beulah; ca 24 air mi NE of Sundance.
Dry uplands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Bear Lodge Range: E of Alva at the summit on Wyo Hwy 24.
44.6548° N, 104.3262° W; NAD 83, uncertainty 1 mi., Digital Map
Common in dry places in Quercus macrocarpa and Pinus ponderosa forest. Phenology: flowering & fruiting.
with Marjorie W. Porter
Accession: RM 278221, Barcode: RM0175928

U.S.A., Wyoming, Weston County: 2 mi NE of Upton.
44.1254° N, 104.6123° W; NAD 83, uncertainty 1 mi., Digital Map
Open ponderosa pine forest. Phenology: flowering & fruiting.
with Marjorie W. Porter
Accession: RM 260347, Barcode: RM0175927

U.S.A., Wyoming, Crook County: Bear Lodge Range: between Alva and Aladdin.
44.6564° N, 104.3241° W; NAD 83, uncertainty 1 mi., Digital Map
Sandy soil in open ponderosa pine forest. Phenology: flowering & fruiting.
with Marjorie W. Porter
Accession: RM 263119, Barcode: RM0175929

U.S.A., Wyoming, Weston County: Upton.
Barren black fine shale with Panicum and Echinochloa. Phenology: flowering & fruiting.

U.S.A., South Dakota, Meade County: Ft. Meade.
Common in dry grassland. Phenology: fruiting.
Arthur C. McIntosh, 918. 8/9/1927.

Lotus unifoliolatus ()
U.S.A., South Dakota, Harding County: Custer National Forest: Peterson Gulch, South Cave Hills.
10% slope of deep sand loam in grass with June grass, bluegrass, and stipa, etc. Phenology: flowering & fruiting.
Glenn L. Dodge, 30. //.
Accession: USFS 506452, Barcode: USFS0067965

U.S.A., South Dakota, Lawrence County: Whitewood.
Canyon above Whitewood, south-facing slopes; yellow pine association. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: E of Jesse Elliot Ranger Station.
Northeastern sandy loam slope of grass with Vetch, goose-grass, Indian bread, etc. in moderately moist soils. Phenology: vegetative only.
Accession: USFS 506453, Barcode: USFS0067966

U.S.A., South Dakota, Harding County: Extreme northwest corner of county.
Open woods. Accession number is duplicated in the DB; not verified. Phenology: flowering & fruiting.
Annotations:
Annotated by C. L. Porter in 1968.
Accession: RM 69976

U.S.A., South Dakota, Brown County: Aberdeen.
Phenology: flowering & fruiting.
Annotated by C. L. Porter in 1968.
Accession: RM 67993

U.S.A., South Dakota, Tripp County: Keya Paha River.
High ground. Phenology: flowering & fruiting.

U.S.A., Arizona, Gila County: Tonto National Forest: 3 Bar D.
Slope 10% north; chaparral, with Quercus turbinella, Cercocarpus betuloides, Poa longiligula. Phenology: fruiting.
1. Lotus unifoliolatus (Hook.) Benth.
Annotated by Frederick J. Hermann.

U.S.A., Oregon, Umatilla County: Umatilla National Forest and Vicinity: vicinity and along Railroad on Forest Service land near Meacham Creek.
Along railroad tracks. Phenology: fruiting.
with Stuart Markow

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: Dry Creek Ridge, ca 8 air mi W of Chewelah, SW of Dry Creek Road.
Mixed Douglas fir forest with rocky ridge and outcrops; small lake, some parts heavily logged; some open field with wet areas. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: Little Pend Oreille Wildlife Refuge: ca 11 air mi SE of Colville at McDowell Lake overlook.
Partially open slopes with numerous rock outcrops; large ponderosa pine and Douglas fir; massive weed infestation in open areas. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: Cottonwood Creek Drainage: ca 9 air mi SE of Chewelah along Forest roads 4342 and 250.
Carex meadows with old and sporadically active beaver dams; ponderosa pine and lodgepole pine on flats; spruce and Douglas fir on slopes. Phenology: fruiting.
Accession: (unaccessioned)

U.S.A., Washington, Ferry County: Western Colville National Forest and Vicinity: Lake Ellen, ca 16 air mi WSW of Colville.
Mountainside above east end of lake and campground; granite balds with fingers of mixed forest. Phenology: flowering & fruiting.

U.S.A., Oregon, Union County: Umatilla National Forest and Vicinity: near Big Sink & Mottet Creek, ca 15 mi N of Elqin.
Roadside; soil compacted, pale brown; slope 5; aspect southeast. Phenology: fruiting.

U.S.A., Oregon, Union County: Umatilla National Forest and Vicinity: near Phillips Creek, ca 6 mi WNW of Elqin.
In full and partial sun in rocks and pebbles along creek; soil rocky; slope 0-20; aspect ravine. Phenology: flowering.

U.S.A., Oregon, Umatilla County: Umatilla National Forest and Vicinity: along North Fork Umatilla River, 0.5-1 air mi ESE of Corporation Guard Station.
Douglas-fir and populus overstory and alder spp. along the river; soil fine, deep, light brown; slope 0-15; aspect southwest. Phenology: flowering.
Heather Bradtke, 49. 6/10/2001.

U.S.A., Oregon, Umatilla County: Umatilla National Forest and Vicinity: Forest Road 31 (Mount Emily Road), 1.5 air mi ENE of I-80 interchange, 7 air mi SSE of Meacham.
Mixed conifer forest, logged, and adjacent roadside. Phenology: fruiting.
1. Lotus unifoliolatus (Hook.) Benth.
Annotated by Heather Bradtke.
with Heather Bradtke

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: Case Ridge on Forest Road 3972.060, ca 2 air mi SE of Dale.
Ponderosa pine and Douglas fir, logged, roadside, stream, slope, and crest. Phenology: flowering.
Annotated by Heather Bradtke.
with Heather Bradtke

U.S.A., Oregon, Wallowa County: Umatilla National Forest and Vicinity: Wenaha-Tucannon Willderness: Smooth Ridge Trail and along the Wenaha River, ca 34 mi E and 6 mi S of Walla Walla.
Exposed copper and platey soils with grass dominant. Phenology: fruiting.

U.S.A., Oregon, Wallowa County: Umatilla National Forest and Vicinity: Wenaha Tucannon Willderness: along Hoodoo Trail above the Wenaha River, ca 35 mi E and 7 mi S of Walla Walla.
Copper slopes under ponderosa pine and Douglas fir; slope 20; aspect north. Phenology: fruiting.

U.S.A., Oregon: Umatilla National Forest and Vicinity:
Along roadside in copper, platey soil. Phenology: fruiting.

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: Granite Creek near mouth of Lick Creek, ca 2 mi N and 5 mi W of Granite.
Weedy creek bank; slope 0. Phenology: fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: along Dry Fork Spring Creek, ca 3.5 air mi NE of Soda Wells.
Sagebrush plains, draw, bottoms along creek, cottonwood, plum thickets; plains. Phenology: flowering & fruiting.

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: Eagle Rock and China Cap on Forest Road 2128, ca 8 mi N and 7 mi W of Monument.
Roadside in disturbed area; slope 0-15; aspect southwest. Phenology: fruiting.

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: Forest Road 1010, ca 15 mi S and 8 mi E of Ukiah.
Lodgepole pine, with Shepherdia and Vaccinium scoparium in deep, fine soil; slope 5-10; aspect north. Phenology: fruiting.

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: Howards Meadow and East Fork Meadow Brook Creek, ca 2 mi S of Dale.
Meadow and wetland in fine, deep, tan soil; slope 0; aspect none. Phenology: fruiting.

U.S.A., Oregon, Umatilla County: Umatilla National Forest and Vicinity: Forest Road 5316 between Thompson and Ellis creeks, ca 6 mi N and 13 mi W of Dale.
Open mixed conifer slope above creek in fine, deep, chocolate brown soil; slope 15; aspect west. Phenology: fruiting.

U.S.A., Oregon, Morrow County: Umatilla National Forest and Vicinity: Kelly Prairie on Forest Road 53, ca 2 mi N and 17 mi W of Ukiah.
Prairie with organic to fine, deep, moist soil; slope 0; aspect none. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Limestone Range.
Open pine woods. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Oak Creek drainage and ridge between Oak and Alum creeks, ca 6.5 air mi NNW of Aladdin; ca 23 air mi NNE of Sundance.
Dry, sandy, open ponderosa pine slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
Dry open sandy Ponderosa pine slope. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Little Missouri River Breaks: ca 14 air mi N of Hulett; ca 33.5 air mi NNW of Sundance.
Upland grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Little Missouri River Breaks: ca 20 air mi N of Hulett, ca 38 air mi NNW of Sundance.
Pine-oak savannah. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Just E of Colony on U.S. 212; ca 34 air mi N of Sundance in Daly Creek drainage.
Plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: E of Norgrain Hill near South Dakota, ca 7.5 air mi NE of Aladdin; ca 26 air mi NE of Sundance.
Upland grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Northern Rocky Mountain Experimental Station.
Black loam soil. Phenology: flowering & fruiting.
Accession: USFS 407458, Barcode: USFS0067967

U.S.A., Wyoming, Crook County: Ca 7 mi NW of Hulett.
Sandy soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Disturbed soil around reservoir in grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains, divide and slopes east of Alkali Brook, ca 3.6 air mi NE of Alva.
Grassland. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Crook County: Black Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.
Disturbed sandy soil along lake margin. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Goldie Divide near junction of Goldie and New Haven roads, ca 5 air mi NW of Hulett.
Ponderosa pine-bur oak forest, roadside. Phenology: fruiting.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
Disturbed sandy soil in grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Devils Tower National Monument: ca 100 yds NW of Joyner Ridge parking lot.
T53N R66W S12
Common on open east slope on sandy silty soil with Agropyron smithii and Stipa. Phenology: flowering & fruiting.
Hollis Marriott, 752. 7/3/1981.

Grassy draw with bur oak. Phenology: flowering & fruiting.

Big sagebrush-grassland. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Powder River Basin: ca 8 air mi NNE of New Haven.
Bur oak savannah, mottes of oak, sandy grassland, eroded, loose shaley ridge with oak and pine; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Bear Lodge Mountains: ca 2 mi E of Alva.
Open sandy ponderosa pine with Solidago and Anaphalis. Phenology: flowering.

U.S.A., Wyoming, Crook County: Black Hills: Belle Fourche River: ca 16 air mi NE of Alva.
Shale bluffs, river bottoms, and sagebrush plains above; plains. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 7 air mi N of Hulett.
Oak woodlands, sandstone rimrock and sandy lower slopes, prairies, and shaded ravines; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: drainage from Geis Springs to 1.5 mi to the NE, ca 5-6 air mi E of Alva.
Pine woodlands, shaded ravines, logging roads, sandy open slopes, and pond; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 2 air mi NE of Aladdin.
Prairie, sandstone outcrops, and dry drainage; prairie. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: ca 9 air mi NE of Aladdin.
Pond and roadside; near pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Horse Creek, ca 12.5 air mi NNW of Aladdin.
Creek bottoms and roadside; roadside. Phenology: flowering & fruiting.

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

U.S.A., Montana, Carbon County: Long Pines Area SE of Ekalaka, Lantis Spring Campground.
Grassy hill with Solidago rigida, Aster. Phenology: fruiting.

U.S.A., Montana, Mineral County: Coeur d'Alene National Forest: St. Regis Ranger Station, 1 mi NW of St Regis.
T18N R28W S24
Level slope and exposure. Phenology: flowering.

U.S.A., North Dakota, Ward County: West side of Upper Des Lacs Lake, 3 1/2 mi NNW of Kenmare.
East-facing prairie slope. Phenology: flowering.
Neil Hotchkiss, s.n.. 7/19/1941.

U.S.A., North Dakota: Spiritwood Lake.
47.07342° N, 98.58883° W; NAD 83, uncertainty 2 mi., Nat. Geog. TOPO!
Accession number duplicated in database, speciment verified as correct.

U.S.A., North Dakota, no county County: Maza.
In sand near lake. Phenology: fruiting.

U.S.A., North Dakota, Ward County: Near Minot.
Morainic hills. Phenology: fruiting.

U.S.A., North Dakota, Lamoure County: LaMoure.
Phenology: flowering & fruiting.
with Wright

U.S.A., North Dakota: Williston.
Phenology: fruiting.

U.S.A., North Dakota: Selfridge.
Prairie coulee. Phenology: fruiting.
with Wm. A. Kluender

U.S.A., South Dakota, no county County: Brookings.
Phenology: fruiting.

U.S.A., South Dakota, Hughes County: 5 mi W [of] Pierre, along U.S. Highway 14.
In grass, heavy clay soil. Phenology: flowering & fruiting.
with M. D. Atkins.

U.S.A., Nebraska, Garfield County: E side of Calamus Reservoir.
In sandy soil of prairie; deep, dry, loose sand along roadway. Phenology: fruiting.
with Marth L. Kaul

U.S.A., Nebraska: Minden.
Phenology: flowering & fruiting.
Harry Hapeman, s.n.. 9/1/1930.

U.S.A., Nebraska, no county County: W of Lincoln.

Lotus unifoliolatus var. unifoliolatus (1960)
Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus
U.S.A., Arizona, Gila County: Tonto National Forest: Three Bar Study Area.
Phenology: fruiting.
Accession: RMRS (unaccessioned)

Lotus unifoliolatus var. unifoliolatus (1963)
Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus
U.S.A., Arizona, Gila County: Tonto National Forest: 3 Bar Watershed D.
Accession: RMRS (unaccessioned)

Lotus unifoliolatus var. unifoliolatus (2009)
Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus
U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: Browns Pond and vicinity on Campbell Creek, ca 6.5 air mi WSW of Ludlow; ca 15 air mi N of Buffalo.
Weedy slopes and flats above the reservoir. Phenology: flowering & fruiting.
Accession: USFS (unaccessioned)

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: along a draw leading into Ward Gulch and to Spring No. 1, ca 17 air mi SW of Buffalo.
Base and lower part of bushy northerly-facing ponderosa pine slope. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: vicinity of Spring No. 3 just below and NE of Moreau Peak, ca 18 air mi SSW of Buffalo.
Open ponderosa pine woods and clearings. Phenology: flowering & fruiting.

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

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just W of the state line, from Forest Road 3118 to an unnamed reservoir ca 1 air mi N of road, ca 7-8 air mi NNW of Camp Crook, SD.
Historic partial burn with sparse ponderosa pine woodland dominated by grasses. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: On the west side of The Jumpoff, ca 1 air mi E of County Road 897 and ca 3 air mi S of SD Hwy 20, ca 7.5 air mi ESE of Camp Crook.
Badlands with interspersed grass and sagebrush. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in and around draws SE of junction of North Divide or Forest Road 3125 and Forest Road 3145 in the vicinity of Camp Spring, ca 4.5 air mi S of Reva Gap, ca 19 air mi ESE of Buffalo.
Grass-dominated flat with scattered green ash. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: just SW of Summit Pass on SD Hwy 79, ca 23.5 air mi SE of Buffalo.
Green ash and grass-dominated roadside. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of Willard Gap off of Rimrock Trail or Forest Road 3150, ca 3 air mi ESE of Summit Pass on SD Hwy 79 and ca 26.5 air mi SE of Buffalo.
Near the rim of a cliff with scattered ponderosa pine, junipers, and grasses. Phenology: flowering & fruiting.
Accession: (unaccessioned), Barcode: USFS0050652

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in the vicinity of Red Bluff Spring, just W of Forest Road 3117, ca 5 air mi SSW of Mill Iron and ca 16.5 air mi ESE of Ekalaka.
Grass-dominated grazing land. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Oliver Springs, ca 0.5 air mi N of Mont Hwy 323 at Conger Hill, ca 5.5 air mi SE of Ekalaka.
Hardwood draw dominated by green ash and grasses. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: South Cave Hills: in and around Timber Canyon, between Forest roads 3113 and 3137, ca 11.5 air mi N of Buffalo.
Green ash-dominated draw. Phenology: fruiting.

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

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in Cheesman Draw, just NE of Pioneer Cemetery off of Forest Road 3045, ca 8.5 air mi WNW of Camp Cook, SD.
In and near margin of reservoir. Phenology: flowering & fruiting.

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: in a tributary of Schleichart Draw above Schleichart Draw Reservoir, W of Forest Road 3130, ca 17 air mi NNE of Buffalo.
Grass-dominated butte top. Phenology: fruiting.
with G. Gust

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

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just W of Forest Road 3117, in and around unnamed pond in Spring Canyon, ca 16 air mi NW of Camp Crook, SD.
Above margin of unnamed still-water pond. Phenology: flowering & fruiting.
with G. Gust

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in and around McNab Pond, at terminus of Forest Road 1401, ca 0.5 air mi NE of Mont Hwy 323, ca 7 air mi SE of Ekalaka.
In and around pond dominated by Scirpus and Typha spp. and grasses on its margin. Phenology: flowering & fruiting.

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: in the vicinity of Gundlach Well off of Forest Road 3103, ca 6 air mi ESE of Ekalaka.
Grass-dominated drainage through open ponderosa pine-dominated forest. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Along Porcupine Creek at Roosevelt Trail and Fort Peck Indian Reservation, ca 5 air mi N of Nashua.
Gravel and sandbars on the flood plain. Phenology: flowering & fruiting.

U.S.A., Montana, Valley County: Spring Creek, ca 1 air mi SSW of Beaten Spring, ca 17 air mi NNE of Glasgow.
Hillsides. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 2597. 7/29/2010.

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.
Moist grasslands surrounding pond with willows, Russian olive, and snowberry thickets. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 8736. 8/4/2011.

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of Willard Gap off of Rimrock Trail or Forest Road 3150, ca 3 air mi ESE of Summit Pass on SD Hwy 79 and ca 26.5 air mi SE of Buffalo.
Near the rim of a cliff with scattered ponderosa pine, junipers, and grasses. Phenology: flowering & fruiting.

U.S.A., Idaho, Idaho County: Nez Perce National Forest: Selway River Drainage: O'Hara Road following O'Hara Creek, ca 3 mi on Forest Road 651, ca 23 air mi ESE of Kooskia.
Roadside, mixed conifer forest. Phenology: flowering.
1. Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus .