Ranunculus aquatilis (1994)
RANUNCULACEAE
Ranunculus aquatilis L.
U.S.A., Wyoming, Sublette County: Gros Ventre Area: 1-1.5 air mi S and SW of Red Hills.
Lakeside and meadows. Phenology: fruiting.
with Tom Cramer
Accession: RM 627061, Barcode: RM0245367

Ranunculus aquatilis (1994)
RANUNCULACEAE
Ranunculus aquatilis L.
U.S.A., Wyoming, Teton County: Gros Ventre Area: southwest end and side of Lower Slide Lake.
Elev. 6900 ft.
Shore line and lower wooded slopes. Phenology: fruiting.
Accession: RM 627062, Barcode: RM0245366

Ranunculus aquatilis (1954)
RANUNCULACEAE
Ranunculus aquatilis L.
U.S.A., South Dakota, Lawrence County: 15 mi SW of Lead, in the Black Hills.
Elev. 5300 ft.
T3N R2E S7
In very cold water of a stream in a canyon. Phenology: flowering.
Accession: RM 241754, Barcode: RM0246642

U.S.A., South Dakota, Custer County: Black Hills: Black Elk Wilderness, upper Grizzly Bear Creek along trail just inside Wilderness boundary, ca 2.2 air mi NW of Camp Remington.
Elev. 5200 ft.
T2S R5E S26 SE1/4 of NE1/4
Drying mud below old beaver dam.
with Patches
Accession: RM (unaccessioned)

U.S.A., South Dakota, Custer County: Black Hills: Black Elk Wilderness, upper Grizzly Bear Creek along trail just inside Wilderness boundary, ca 2.2 air mi NW of Camp Remington.
Drying mud below old beaver dam. Phenology: flowering & fruiting.
with Patches

U.S.A., Montana, Pondera County: Front Range: steam flowing NE into Fish Lake, ca 2 air mi ESE of Swift Reservoir Trailhead.
Elev. 1627 m.
Beaver dam, marsh, stream; grazed. Phenology: flowering.
Annotations:
1. Ranunculus aquatilis L..
with Addy Wycgans
Accession: RM (unaccessioned)

U.S.A., Montana, Cascade County: Little Belt Mountains: Smith River, mouth of Trout Creek and up Trout Creek ca 0.5 mi, 31 air mi S of Great Falls.
Elev. 1183 m.
Dry creek bed, between limestone cliffs running west to east. Phenology: fruiting.
Annotations:
1. Ranunculus aquatilis L..
Accession: RM (unaccessioned)

U.S.A., Montana, Beaverhead County: Lower Placer Creek, south of Gibbons Pass.
T27N R17W S10
Very common. Phenology: fruiting.
Klaus H. Lackschewitz, 9958. 9/13/1981.
Accession: RM 522079

U.S.A., Montana, Missoula County: Blackfoot Valley: 4 mi W of Potomac.
Phenology: flowering & fruiting.
with C. V. Muhlick
Accession: RM 203317

U.S.A., Montana, Granite County: Rock Creek, 10 mi from mouth.
In shallow water. Phenology: flowering.
with C. V. Muhlick
Accession: RM 203400

U.S.A., Montana, Pondera County: Missoula National Forest: Marias Pass, ca 10 mi SW of Glacier National Park.
In about 2 feet of water. Phenology: flowering.

U.S.A., Montana, Missoula County: Near Fort Missoula.
Slough; water ca 3 ft deep. Phenology: flowering.

U.S.A., Montana, Flathead County: Rose Creek Slough, ca 1.5 mi N of Sportsmans Bridge.
T27N 20W S10
In 2-3 ft of water; with Potamogeton gramineus and Elodea canadensis. Phenology: flowering.

U.S.A., Montana, Gallatin County: Gallatin National Forest: Middle Creek.
Level ground; swampy, rocky soil. Scarce. Phenology: fruiting.
Accession: USFS 457604

U.S.A., Montana: Columbia Falls.
Phenology: flowering.

U.S.A., North Dakota, Barnes County: Lucca.
Phenology: fruiting.
Annotations:
3. Ranunculus aquatilis L.
Annotated by D. J. Ode on 2//1983.

U.S.A., South Dakota, McCook County: Along U.S. Hwy 16, 3.5 mi W of Bridgewater.
In shallow water of pond. Phenology: flowering.
with G. W. Parmelee, Stella M. Wilson and P. G. Coleman

U.S.A., Nebraska, Brown County: Longpine.
Phenology: flowering.

U.S.A., North Dakota, Benson County: Leeds.
Stagnant water. Phenology: flowering.
3. Ranunculus aquatilis L.
Annotated by D. J. Ode on 2//1983.

U.S.A., North Dakota: Rolla.
Phenology: flowering.

U.S.A., South Dakota, Harding County: House Creek, 20 mi NE of Crook.
T21N R3E S26
Bed of creek. Phenology: flowering.

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River Drainage: along south side of river, ca 0-0.5 mi W and E of the mouth of Grinnell Creek.
In ponds along river. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Castle Creek 1 mi W of [Inundated] Deerfield.
T1N R2E S25
Streamside; willow and birch association. Phenology: flowering & fruiting.
2.  .

Ranunculus aquatilis var. aquatilis (1996)
Ranunculus aquatilis L. var. aquatilis E. Drew
U.S.A., Wyoming, Crook County: Bear Lodge Mountains: Cole Canyon, ca 5.5 mi N of Sundance.
Aspen, paper birch community Phenology: flowering.

Ranunculus aquatilis var. aquatilis (2018)
Ranunculus aquatilis L. var. aquatilis E. Drew
U.S.A., Wyoming, Sweetwater County: Great Divide Basin Area: Whitehorse Creek Wilderness Study Area: ca 2.6 air mi WNW of Oregon Butte summit, ca 15.2 air mi SSW of South Pass City.
Spring-fed impoundment with low water levels, muddy flats; with Hordeum jubatum, Juncus balticus. Phenology: flowering & fruiting.

Ranunculus aquatilis var. aquatilis (1995)
Ranunculus aquatilis L. var. aquatilis E. Drew
U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Rice Gulch between BLM Deer Park Trail Road 5826 or County Road 347 and County Road 69, along a tributary of Wilson Creek, ca 11.7 air mi SW of Cripple Creek.
Stock pond. Phenology: flowering.
Accession: (unaccessioned)

Ranunculus aquatilis var. diffusus (1988)
Ranunculus aquatilis L. var. diffusus With.
U.S.A., Wyoming, Park County: Southwestern Absarokas: junction of Cabin Creek, South Fork Shoshone River and vicinity, ca 45 air mi SW of Cody.
In pond. Phenology: flowering & fruiting.

Ranunculus aquatilis var. diffusus (2002)
Ranunculus aquatilis L. var. diffusus With.
U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Cheyenne River Draw on County Road 31, ca 27 air mi NNE of Glenrock; ca 36 air mi NNW of Douglas.
Creek bed. Phenology: flowering & fruiting.

Ranunculus aquatilis var. diffusus (2002)
Ranunculus aquatilis L. var. diffusus With.
U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Little Thunder Reservoir on dirt road ca 0.7 mi off Highlight or County Road 52, ca 7.5 air mi SE of Wright; ca 43 air mi S of Gillette.
Shore of reservoir. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Belle Fourche River off Hilight or County Road 52, ca 16 air mi N of Wright; ca 22 air mi S of Gillette.
Submerged in river. Phenology: flowering.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: bentonite pit W of East Iron Creek, on Forest Road 914, ca 8 air mi ESE of Upton; ca 20 air mi NW of Newcastle.
In pond's water. Phenology: flowering.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Well Creek, on Stewart Road, ca 10 air mi WNW of Moorcroft; ca 18 air mi E of Gillette.
Pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Turner Creek, on Forest Road 914, ca 16 air mi NW of Newcastle; ca 12 air mi ESE of Upton.
Shallow water in creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Little Thunder Creek, on Wyo Hwy 450, ca 18 air mi ESE of Wright; ca 48 air mi WSW of Newcastle.
Pool in creek. Phenology: flowering & fruiting.
Peter J. Ebertowski, 7806. 8/7/2003.

U.S.A., Wyoming, Hot Springs County: Absaroka Mountains: Shoshone National Forest: Twin Lakes near the head of Grass Creek, ca 45 mi NW of Thermopolis.
Along shores in wet soil and shallow water with Carex utriculata and Eleocharis palustris. Phenology: fruiting.

U.S.A., Wyoming, Teton County: Yellowstone Plateau: Yellowstone National Park: Firehole River at Lone Star Geyser, ca 4 mi SSE of Old Faithful.
Submerged in the river. Phenology: flowering & fruiting.

U.S.A., Montana, Sweet Grass County: Beartooth Mountains: Gallatin National Forest: along the Boulder River ca 0.5 S of the confluence with Graham Creek, ca 29 mi SW of Big Timber.
In small pond on east side of river. Phenology: flowering & fruiting.

U.S.A., Idaho, Fremont County: [location and coordinates withheld]
Wet soil adjacent to creek with Carex nebrascensis, Juncus balticus, and Alopecurus pratensis.

U.S.A., Wyoming, Hot Springs County: Southeastern Absarokas: ponds just below springs along north side of Grass Creek, in foothills ca 26 mi SSW of Meeteetse.
Wet soil at edge of man-made ponds with Eleocharis palustris, Catabrosa aquatica, Alopecurus aequalis, and Carex rostrata. Phenology: flowering.

U.S.A., Montana, Gallatin County: Gallatin National Forest: Madison Canyon: along west side of Beaver Creek immediately N of U.S. Hwy 287, ca 25 mi NW of West Yellowstone.
Beaver ponds and marsh with Carex rostrata, Geum rivale, Eleocharis acicularis, and Salix geyeriana. Phenology: flowering & fruiting.

U.S.A., Montana, Sweet Grass County: Absaroka-Beartooth Mountains: Gallatin National Forest: just W of Hells Canyon Campground along the east side of the Boulder Road, 35 mi SW of Big Timber.
Spruce swamp and open mire with Picea glauca, Calamagrostis canadensis, and Carex disperma. Phenology: flowering.

U.S.A., Arizona, Coconino County: Coconino National Forest: Lockett Meadow in Interior Valley on east side of San Francisco Mountain, ca 11 air mi N of Flagstaff.
In spring fed pond. Phenology: fruiting.
with James F. Fowler

U.S.A., Colorado, Conejos County: Eastern San Juan Mountains: Rio Grande National Forest: Conejos River, Spectacle Lake vicinity, Forest Road 250.
Pond. Phenology: flowering & fruiting.

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: Rio Grande National Forest: campground on Rio Chama W ca 1 air mi along Archuleta Creek.
Spruce/fir and aspen forest on slopes, alder and willow along streams; along the river. Phenology: flowering & fruiting.
1. Ranunculus aquatilis L. var. diffusus With.
Annotated by Jeanette Flaig.

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., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Scotty Canyon along Atlantic Rim, ca 17 air mi SW of Rawlins; ca 11 air mi WSW of Chokecherry Knob.
Shaded drainage on north-facing slope; dense aspen dominant. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Wyoming, Carbon County: [location and coordinates withheld]
Edge of creek; graminoids dominant, forbs diverse; wet, organic soil. Phenology: flowering & fruiting.
Accession: (unaccessioned)

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Crooks Mountain: springs and adjacent slopes at head of West Arapahoe Creek, ca 6.5 air mi W of Crooks Peak; ca 11 air mi NW of Bare Ring Butte.
Wide, rocky channel of spring; graminoids dominant, heavily grazed; sandy, wet soil. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: Warm Springs and vicinity, ca 5 air mi S of Sweetwater Station; ca 8 air mi N of Buffalo Basin Oil Field.
Along side of flowing spring; dense, grazed graminoids dominant. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: dammed pond, associated drainages, and nearby slopes, ca 6.5 air mi N of Buffalo Basin Oil Field; ca 11.5 air mi S of Sweetwater Station.
Pond edge; wet, compact, clay soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Popo Agie River Drainage: along Horace Gulch, ca 4.5 air mi SE of Roundtop Mountain; ca 13 air mi W of Schoettlin Mountain.
Side of stream in moist soil with dense graminoids and forbs. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: Willow Creek and nearby spring, ca 14 air mi NW of Buffalo Basin Oil Field; ca 17 air mi ESE of Atlantic City.
Edge of creek in wet, mucky soil. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Green Mountain: Sand Spring and its intersection with Crooks Creek, ca 5 air mi NE of Bare Ring Butte; ca 11.5 air mi W of Whiskey Peak.
Shallow creek with series of beaver dams; dense Salix stands along creek interspersed with open, grazed meadows, graminoids dominant; sand substrate. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Green Mountain: drainage and associated slopes and beaver ponds ca 4 air mi W of Whiskey Peak; ca 12.5 air mi NE of Bare Ring Butte.
Open graminoid meadow around beaver dam. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: [location and coordinates withheld]
Side and banks of stream; shaded Salix overstory, grazed understory with scattered birch; wet, gravelly organic soil. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: Spring Gulch and adjacent slopes, ca 3 air mi SSE of Atlantic City; ca 10 air mi W of Radium Springs.
Along side of creek in water. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Sweetwater River Drainage: Slate Creek and adjacent slope, ca 2 air mi S of Rock Creek Reservior; ca 2.5 air mi N of Atlantic City.
Open muddy seep below old beaver dam; patches of grazed graminoids dominant. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Great Divide Basin Area: Great Divide Basin: Willow Hill area, ca 13 air mi NW of Rawlins.
Limestone and sandstone outcrops, sandy and clay slopes with stream and pond below. Phenology: flowering & fruiting.
1. Ranunculus aquatilis L. var. diffusus With.
Annotated by Laura Welp.

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Popo Agie River Drainage: Beaver Creek, ca 20 air mi S of Lander; ca 25 air mi W of Sweetwater Station.
In water at side of creek. Phenology: flowering.

U.S.A., Wyoming, Teton County: Gros Ventre Area: spring and calcareous pond 2.5 air mi NNE of Curtis Canyon campground.
Growing on or adjacent to pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Laramie County: Southeastern Plains: along Horse Creek.
T18N R64W S23; also S26
Riparian. Phenology: vegetative only.
with Eric Hazlett

U.S.A., Colorado, Lake County: Central Colorado: Sawatch Range, East Slope Continental Divide: Crystal Lakes area, west side of U.S. Hwy 24, ca 5 air mi SW of Leadville.
Filled depression next to lakes with Chrysothamnus and graminoids. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Middle Fork Sage Hen Creek S of Beaver Divide and W of Rattlesnake Hills, 21.2 road mi NE along Agate Flat or BLM Road 2404 from U.S. Hwy 287.
Aquatic plant community; partially submerged. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Jemez Mountains: East Fork Jemez River, ca 0.5 mi above Las Conchas Campground.
Floating aquatic in stream. Phenology: flowering & fruiting.
Elaine Perkins Jacobs, 004. 6/18/1986.
with Brian Jacobs

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.
Shallow water in the river. Phenology: flowering & fruiting.

U.S.A., Idaho, Washington County: Payette National Forest and Vicinity: Hitt Mountains: Hixon Sharptail Preserve, Fairchild Reservoir, ca 8 air mi W of Midvale; ca 14 air mi SW of Cambridge.
In mucky soil around small pond in open grass and shrubland. Phenology: flowering & fruiting.

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Salmon River Mountains: Bear Basin and along Forest Road 452, ca 4 air mi NW of McCall; ca 7 air mi ESE of New Meadows.
Open meadow dominated by Camassia and Carex. Phenology: vegetative only.
with Denise L. Fairbanks

U.S.A., Idaho, Idaho County: Payette National Forest and Vicinity: Salmon River Mountains: Frank Church-River of No Return Wilderness: Hotzel Ranch and Chamberlain Airstrip, ca 15 air mi E of Mackay Bar; ca 18 air mi NNE of Big Creek Guard Station.
Creekside.

U.S.A., Idaho, Idaho County: Payette National Forest and Vicinity: Salmon River Mountains: Frank Church-River of No Return Wilderness: Flossie Lake, ca 4 air mi WNW of Chamberlain Guard Station; ca 11 air mi E of Mackay Bar.
Along shore of subalpine lake. Phenology: flowering & fruiting.

U.S.A., Idaho, Idaho County: Payette National Forest and Vicinity: Salmon River Mountains: Warren Airstrip, just NW of Warren, ca 20 air mi NW of Big Creek Guard Station; ca 23 air mi NNW of Yellow Pine.
Airstrip with gravel parent material, tailing piles, and ponds. Phenology: flowering & fruiting.
with Erin Peters

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Frank Church-River of No Return Wilderness: Monumental Creek Trail to Roosevelt Lake, ca 15.5 air mi E of Yellow Pine; ca 13.5 air mi SE of Big Creek.
Submerged in lake surrounded with moose sign. Phenology: flowering & fruiting.
with Denise L. Fairbanks

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Hells Canyon Natural Recreation Area: Black Lake, ca 9.5 air mi NE of Cuprum; ca 20 air mi NW of New Meadows.
In subalpine lake. Phenology: fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: vicinity of Coal Creek, ca 14 air mi N of Border Junction.
Meadows, mudflats, and sagebrush along Coal Creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Hams Fork, ca 1 air mi N of Frontier.
Riverside meadows, sagebrush, and willows. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Salt Creek, just S of Bridger-Teton National Forest, ca 25 air mi N of Cokeville.
Pondside willows and sagebrush, adjacent sagebrush, and open hillside. Phenology: flowering.

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

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 3 air mi SE of Paonia Reservoir.
Open meadow dominated by Wyethia and along pond; sagebrush, Prunus, and Symphoricarpos. Phenology: flowering & fruiting.
Accession: 777193

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: public access to Big Creek, ca 17 air mi SE of Encampment; ca 7.6 air mi N of Colorado.
Riparian area along creek. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Ferris Mountains: Sand Creek Canyon at east end of range, ca 17 air mi N of Independence Rock.
Creek and adjacent sand dunes. Phenology: fruiting.
with Kevin J. Taylor

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: U.S. Forest Service Gamet Allotment plot shrubsite: edge of deep drainage into Black Canyon on north-northeast facing slope.
Perennial stream bottom, heavy clay soil. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 22 air mi ENE of Hermosa and 1 mi W of Swinehart Hill on Rapid Creek.
On banks of creek. Phenology: vegetative only.

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 32-33 air mi NNW of Crawford on Board Gate Dam Reservoir on Forest Road 910.
Gently rolling prairie uplands in Nassellus viridula plant community, soils are loam and loamy clay near shores of reservoir. Phenology: buds.

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 10.5 air mi SE of Fairburn.
Soils are sand overlain with gravel sediments. Phenology: buds.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Mogote Ridge: around Puertecito Tank and vicinity at Puertecito de las Ranas, ca 8 air mi SE of Canjilon; ca 24.5 air mi SE of Tierra Amarilla.
Mud flats of reservoir. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: upper Costilla Creek from Forest Road 1900, ca 13 air mi NE of Red River.
Stream riparian area and meadow uplands with scattered Engelmann spruce. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: small ponds on south side of NM Hwy 518, ca 3/4 road mi N of Angostura.
Beaver pond and wetland on side of highway. Phenology: flowering & fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Placer Creek at waterfall via Forest Road 1893 N of U.S. Hwy 64, ca 18 air mi NW of Tres Piedras.
Stream riparian, recently grazed by cattle/elk. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Cimarron Range: edge of Carson National Forest at lower end of Lookout Canyon.
Meadow and ponderosa pine woodland. Phenology: flowering.
with Jill E. Larson

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Eagle Nest Lake State Park: Moreno Day Use Area, on south side of U.S. Hwy 64, ca 3/4 air mi SSE fo Eagle Nest.
Along north shore of reservoir with Hordeum jubatum, Verbascum thapsis, and Cirsium arvense. 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: vegetative only.
with Robert Peters

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: along Comanche Creek to Clayton Camp, ca 7 air mi ESE of Red River, ca 10 air mi N of Elizabethtown historic town site.
Along old road and open creek riparian area with Carex species. Phenology: flowering.

U.S.A., Wyoming, Park County: Bighorn Basin: along BLM Road 1314 and Greybull River, ca 14 air mi WSW of Meeteetse.
Aquatic. Phenology: flowering & fruiting.
with Michelle Wilson

U.S.A., Wyoming, Park County: Bighorn Basin: along Shoshone River W of Willwood Dam and County Road
Aquatic. Phenology: flowering.
with Michelle Wilson

U.S.A., Colorado, Montrose County: San Miguel and lower Dolores River Drainages: San Miguel River Drainage: Uncompahgre Plateau: at stockpond S of Hanks Valley Road, and by Cedar Creek.
In and next to stock pond, and in riparian area by creek. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: [location and coordinates withheld]
Wet meadow and area around stock pond with snowberry and rose. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: San Miguel and Lower Dolores River Drainages: Uncompahgre Plateau: on Thimble Rock Point Road, 0.2-0.7 mi from Divide Road.
At stock pond. Phenology: flowering & fruiting.

U.S.A., Colorado, Mesa County: San Miguel and Lower Dolores River Drainages: Uncompahgre Plateau: off Uranium Road, ca 2 mi W of Divide Road around Rim Pond (stockpond).
Around stockpond. Phenology: flowering & fruiting.

U.S.A., Oregon, Grant County: Blue Mountains: Umatilla National Forest: north side of Lost Lake, ca 6 ft N of shore, ca 11 air mi W of Granite.
T9S R34E S8
Lakeside in 2-3 ft of water. Phenology: fruiting.
with Jean Wood

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: Little Milky Lake area, ca 25 air mi SSE of Dubois.
Riparian meadow. Phenology: flowering & fruiting.
Accession: USFS 848537, Barcode: USFS0032523

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: Maxon Basin, ca 16 air mi SSW of Lander.
Wet mud, dried pond. Phenology: flowering & fruiting.
with Bonnie Heidel
Accession: USFS 848536, Barcode: USFS0032522

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: I mi NW of summit of Gentlemans Pass; ca 6 air mi ESE of Gannett Peak.
Standing water, submerged. Phenology: flowering & fruiting.
with Aaron Wells
Accession: USFS 848535, Barcode: USFS0032521

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: Upper Phillips Lake drainage to Shangrila Meadows, ca 6 air mi E of Downs Mountain.
Submerged in water. Phenology: fruiting.
with Eric Everts

U.S.A., Wyoming, Fremont County: East Slope Wind River Range and Vicinity: Downs Fork Meadows, ca 6 air mi E of Downs Mountain.
Standing water. Phenology: fruiting.
with Rick Massatti

U.S.A., Colorado, Saguache County: Southern Gunnison Basin: San Juan Mountains: ca 24.2 air mi ENE of Lake City along Elk Creek; ca 5.5-6 air mi NNE of Stewart Peak.
Spring. Phenology: vegetative only.

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: County Road 25 at Willow Creek, ca 1 air mi NW of Blue Mesa Airport; ca 6 air mi NW of Gateview.
Riparian and adjacent sagebrush shrubland. Phenology: flowering.

U.S.A., Colorado, Montezuma County: Upper Dolores River Drainage and Adjacent Areas: San Juan National Forest: House Creek Area around McPhee Reservoir, ca 5.5 air mi N of Dolores.
Ponderosa pine and oak woodland above and around cow pond and seepage. Phenology: flowering & fruiting.
Accession: 708418

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.
Dry to muddy creek bed and embankments. Phenology: flowering & fruiting.

U.S.A., Colorado, Montezuma County: Upper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Forest Road 527E, ca 3 air mi NE of Dolores at the Boggy Draw Area, Morgan Cabin Reservoir.
Ponderosa pine forest, aspen grove and rimrock pavement surrounding wetland and reservoir; west face. Phenology: flowering & fruiting.
with Sierra Smith
Accession: 714849

U.S.A., Wyoming, Albany County: Wetlands and Adjacent Areas: Threemile Creek, ca 16 air mi SE of Medicine Bow.
Middle of stream in slow-moving water. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Wetlands and Adjacent Areas: confluence of Whiskey Creek and Buckley Reservoir, ca 2 air mi NE of Muddy Gap Junction.
Moist mud flats. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Wetlands and Adjacent Areas: Hams Fork, ca 15 air mi E of Cokeville.
Submerged in slow-moving water. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: Miles Landing, North Platte River, ca 20 air mi SW of Casper.
Submerged in slow-moving water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Wetlands and Adjacent Areas: North Platte River, ca 12 air mi NE of Encampment.
Submerged in slow-moving water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Wetlands and Adjacent Areas: Green River, ca 30 mi NNW of Rock Springs.
Submerged in slow-moving water. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: Wetlands and Adjacent Areas: sagebrush wetlands, ca 36 air mi NW of Rock Springs.
Growing in standing water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wetlands and Adjacent Areas: Hams Fork, ca 8 air mi NW of Kemmerer.
Submerged in slow-moving water. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Wetlands and Adjacent Areas: Hams Fork, ca 11 air mi NW of Kemmerer.
Submerged in standing water. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Wetlands and Adjacent Areas: irrigation ditch and spring-fed stream, ca 2 air mi SE of Pinedale.
Submerged in slow-moving water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Carbon County: Wetlands and Adjacent Areas: Big Creek, ca 17 air mi SE of Encampment.

U.S.A., Wyoming, Washakie County: Wetlands and Adjacent Areas: Nowood River, ca 33 air mi S of Ten Sleep.
Emergent in slow-moving water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Johnson County: Wetlands and Adjacent Areas: Tie Hack Reservoir, ca 12 air mi WSW of Buffalo.
Growing completely submerged in water a few feet from shore. Phenology: flowering.

U.S.A., Wyoming, Big Horn County: Wetlands and Adjacent Areas: Meadowlark Lake, ca 16 air mi NE of Ten Sleep.
Emergent in lake, about 3 ft from shore. Phenology: fruiting.

U.S.A., Wyoming, Crook County: Along Sand Creek, near Beulah.
44.5147° N, 104.091° W; NAD 83, uncertainty 1 mi., Digital Map
Submerged in stream with Zannichellia. Phenology: vegetative only.

U.S.A., Wyoming, Albany County: Pole Mountain Region: North Fork Pole Creek.
41.2859° N, 105.4317° W; NAD 83, uncertainty 2 mi., Digital Map
Plants submerged in stream. Flowers emergent Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Porter Lake (at Jack's Place) near north end of Sheep Mountain.
41.291° N, 105.997° W; NAD 83, uncertainty 0.5 mi., Digital Map
3 ft deep in alkaline lake. Phenology: flowering.
with B. F. Miller

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: East Fork Jemez River from trailhead, 0.2 air mi W of Las Condras Campground, N and W to Valles Caldera National Preserve fence near highpoint 8612.
Broad valley with volcanic boulders and rock outcrops on flanks. Phenology: flowering.

U.S.A., Wyoming, Platte County: Camp Guernsey: Broom Creek Canyon, ca 0.7 km SW of confluence with Deadhorse Canyon and 1.8 km E of Spring Creek.
Elev. 1420 m.
Infrequent in a riparian community on gentle to steep slopes of sandy loam with stones and boulders with Juniperus scopulorum, Prunus virginiana, Rhus trilobata, Bromus inermis, and Melilotus officinalis. Phenology: flowering & fruiting.
with Melanie Arnett, Carlos A. Popolizio

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: stock pond and drainage, 2.2 km NE of Peak 4290, 0.7 km SW of Peak 4244.
Common in palustrine with level to 20 deg clay (mud), soil series Shingle Haverdad association, with Carex nebrascensis, Potamogeton foliosus, P. pusillus, and Eleocharis sp. Phenology: flowering & fruiting.
Patricia P. Douglas, 132. 7/5/1997.
with N. E. Hastings

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: stock pond and surrounding banks, 0.7 km NW of Peak 4244, 2.7 km NE of Peak 4290.
Common in palustine of clay (mud), soil series Worfka-Shingle-Samday complex, with Eleocharis palustris, Potamogeton pusillus, Carex, and Juncus spp. Phenology: flowering & fruiting.
Patricia P. Douglas, 177. 7/6/1997.
with N. E. Hastings

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: pond 2.8 km SE of Peak 4290, ca 1.5 km S of Peak 4266.
Locally common on level palustrine, soil series Worthenton clay loam, with Typha latifolia, Ranunculus circinnatus, Alisma gramineum, Juncus, and Carex spp. Phenology: flowering & fruiting.
Patricia P. Douglas, 466. 6/12/1998.
with N. E. Hastings

U.S.A., Wyoming, Hot Springs County: Confluence of Bridger and west Bridger creeks.
Shallow water of creek with Potamogeton and R. cymbalaria. Phenology: flowering & fruiting.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: East Fork Jenez River from Baca Ranch entry road and downstream to start of canyon.
Phenology: fruiting.

U.S.A., Arizona, Apache County: Apache National Forest: Nutrioso.
Accession: RMRS (unaccessioned)

U.S.A., Colorado, Jackson County: North-central Colorado: Park Range: trail from Big Creek Lakes to 2.5-1.5 trail mi from Fryingpan Trail, ca 19 air mi NW of Walden.
Trailside. Phenology: flowering & fruiting.
1. Ranunculus aquatilis L. var. diffusus With.
Annotated by B. E. Nelson.
with Sarah Nunn

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: Lake Elmo and vicinity.
Open area around lake. Phenology: fruiting.

U.S.A., Wyoming, Teton County: Grand Teton National Park and Vicinity: Jackson Hole: near Schwabachers Landing on the Snake River, ca 5 air mi NNE of Moose; ca 12 air mi SW of Moran.
In channel of slow-moving oxbow stream. Phenology: flowering.
Annotated by David Scott.

U.S.A., Wyoming, Teton County: Grand Teton National Park and Vicinity: Jackson Hole: near Two Ocean Lake, ca 6 air mi N of Moran; ca 21.5 air mi NE of Moose.
Small pond surrounded by Salix spp. Phenology: flowering & fruiting.
Annotated by David Scott.
with Amanda Richardson

U.S.A., Wyoming, Teton County: Grand Teton National Park and Vicinity: John D. Rockefeller Jr. Memorial Parkway: near Polecat Creek, ca 32.5 air mi N of Moose; ca 22.3 air mi NNW of Moran.
Spring and wetland. Phenology: flowering.
Annotated by David Scott.
with Diane Abendroth

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., Wyoming, Teton County: Southwestern Absarokas: Teton Wilderness.
Growing in slow-moving creek. No other locality data is provided. -RCR

U.S.A., Wyoming, Park County: Southwestern Absarokas: junction of Cabin Creek, South Fork Shoshone River and vicinity, ca 45 air mi SW of Cody.
In pond.

U.S.A., Wyoming, Teton County: Southwestern Absarokas: Bridger-Teton National Forest: along Pacific Creek, ca 5 air mi NE of Moran Junction, ca 35 air mi NE of Jackson.
In muddy area. Phenology: flowering.

U.S.A., South Dakota, Lawrence County: Maurice: Spearfish Canyon.
In pond. Abundant. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Hill City: Spring Creek.
T1S R5E S30
Along edge of creek. Common. Phenology: flowering.

U.S.A., South Dakota, Custer County: Black Hills: Black Elk Wilderness: Trail # 7 along tributary to Grizzly Bear Creek, ca 8.0 air mi NE of Custer.
T2S R5E S26 NE1/4 of NE1/4
Ponderosa pine and bur oak; in water in creek. Phenology: flowering.
Annotated by Hollis Marriott.

U.S.A., South Dakota, Custer County: Black Hills: Black Elk Wilderness: Trail # 7 along tributary to Grizzly Bear Creek, ca 8.0 air mi NE of Custer.
Ponderosa pine and bur oak association; in water in creek. Phenology: flowering.

U.S.A., South Dakota, Butte County: Small reservoir at Newell Country Club.
Submerged in 1 - 1.5 m of water, abundant. Phenology: flowering & fruiting.

U.S.A., South Dakota, Meade County: Durkee Lake.
Submersed in shallow water. Occasional. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Castle Creek 1 mi W of [Inundated] Deerfield.
Streamside; willow and birch association. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Black Hills, Black Hills National Forest, Rhoads Fork of Rapid Creek between Bee and Bombard Draws, ca 7.5 air mi W of Rochford.
In stream.
with B. Burkhart, D. Faber-Langendoen

U.S.A., South Dakota, Pennington County: Black Hills, Black Hills National Forest, Rhoads Fork of Rapid Creek between Bee and Bombard Draws, ca 7.5 air mi W of Rochford.
In stream. ELEVSTR 6150 6200 f (USGS 7.5) G. Bryson Phenology: flowering & fruiting.
with B. Burkhart, D. Faber-Langendoen

U.S.A., South Dakota, Gregory County: Lake Splendor.
Submerged. Phenology: flowering & fruiting.

U.S.A., South Dakota, Pennington County: Merritt; Jim Creek.
No slope, in pools in creek. Phenology: fruiting.

U.S.A., South Dakota, Custer County: Harney National Forest: Stockdale Lake (artifical) near Custer.
T3S R5E S27
Fills shallows and affects oxygen supply. Phenology: vegetative only.

U.S.A., South Dakota, Custer County: Harney National Forest: BHM.
Aquatic. Phenology: flowering.

U.S.A., South Dakota, Pennington County: Castle Creek, ca 1 mi NW of Deerfield.
44° 2' N, 103° 51' W; Specimen Label
Shallow water of stream with Potamogeton vaginatus. Corolla white. Phenology: flowering.

U.S.A., South Dakota, Jackson County: Buffalo Gap Expt Area: growing in stockpond.
Aquatic, clay soil; Juncuc spp. association. Phenology: flowering & fruiting.
Annotated by Charles Feddema in 1967.
Accession: USFS 457971

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Ferris Mountains: Arkansas Creek on north side of range, ca 13.5 air mi from Three Forks Junction.
Ponds and surrounding marsh in limber pine and subalpine fir. Phenology: flowering.

U.S.A., South Dakota, Fall River County: Old mine pit used as stock pond.
Submerged. Frequent. Phenology: flowering.
Stephen Van Sickle, 227. 8/12/1982.

U.S.A., South Dakota, Jones County: Murdo Dam.
Anchored in shallow water. Phenology: flowering & fruiting.
Stephen Van Sickle, 292. 8/14/1982.

U.S.A., South Dakota, Todd County: Stockdam S of He-Dog Day School.
Submergent. Phenology: flowering & fruiting.
Stephen Van Sickle, 92. 7/16/1982.

U.S.A., Wyoming, Albany County: Laramie Range: Johnson Reservoir, ca 27 air mi NE of Laramie.
Reservoir and adjacent granite outcrops. Phenology: flowering & fruiting.
with J. Brondum and T. McGowan

U.S.A., Colorado, Park County: South Platte River; Hartsel.
Standing water of the river. Phenology: flowering & fruiting.
Annotated by Lyman Benson in 1945.

U.S.A., Colorado, Routt County: Steamboat Springs.
Phenology: flowering & fruiting.
Annotated by Lyman Benson in 1945.

U.S.A., Colorado, Ouray County: Ouray.
Phenology: flowering & fruiting.
Annotated by P. A. Rydberg in 1897.

U.S.A., Colorado, La Plata County: San Juan National Forest: first bridge over Pine River above Bayfield.
T35N R7W S3
In river. Phenology: flowering & fruiting.
Accession: USFS 457591

U.S.A., Colorado, Larimer County:
Plains. Phenology: flowering.
Annotated by Lyman Benson in 1945.

U.S.A., Colorado, Hinsdale County: Region of the Gunnison Watershed: below Carson.
Phenology: fruiting.
1.
Annotated by Edward L. Greene in 1945.

U.S.A., Colorado, Hinsdale County: Region of the Gunnison Watershed: below Carson.
1.
Annotated by Edward L. Greene in 1945.

U.S.A., New Mexico, Colfax County: Elizabethtown.
In pond. Phenology: flowering.
1.
Annotated by Aven Nelson in 1945.

U.S.A., New Mexico, Colfax County: Cimarron Canyon.
In shallow water. Phenology: flowering.

U.S.A., Colorado, Larimer County: Ca 5 mi S of Wyoming border, 6 mi W of I-25 along Sand Creek. Jack Spring Fork.
In Bouteloua-Opuntia grassland; wet stream gravels. Phenology: flowering & fruiting.

U.S.A., Colorado, Montrose County: Tabeguache Basin.
Margin of pond. Phenology: flowering.

U.S.A., Colorado, Clear Creek County: Georgetown.
Swamps. Phenology: flowering & fruiting.
with George G. Hedgcock

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

U.S.A., Wyoming, Converse County: Laramie Range: along Trail Creek, ca 3 air mi SW of Esterbrook; ca 21 air mi SW of Douglas.
Pool. Phenology: flowering.
with J. Brondum and T. McGowan

U.S.A., Colorado, Montrose County: Montrose.
In slow running stream. Phenology: flowering.

U.S.A., Colorado, Montrose County: Montrose.

U.S.A., Colorado, Grand County: Ca. 5.5 mi N of Kremmling, E of Hwy 40.
In abandoned oxbow of Muddy Creek, shallow ephemeral pool. Phenology: flowering & fruiting.
with Oliver Grah

U.S.A., Colorado, Garfield County: White River Plateau: ca. 0.5 mi N of White River at Trapper's Lake.
In river. Phenology: flowering.
Annotated by Aven Nelson in 1945.
Frederick J. Hermann, 5505. 7/30/1933.

U.S.A., Colorado, Teller County: Near Florissant.

U.S.A., Colorado, Alamosa County: Alamosa.
In ditch from flowing well; temperature of water as it comes is 80 degrees. Phenology: flowering & fruiting.

U.S.A., Colorado, Gilpin County: Small lake 1/4 mi below Tolland.
Submersed in water. Phenology: fruiting.
with W. W. Robbins

U.S.A., Colorado, Gilpin County: Small lake 1/4 mi below Tolland.
with W. W. Robbins

U.S.A., Colorado, La Plata County: San Juan National Forest: below Electra Lake.
T38N R9W S24
On slight slope in a lake bed of black silt soil. Phenology: flowering & fruiting.
Annotated by Jane W. Roller in 1961.
Gasper A. Loughridge, 280. 7/5/1934.

U.S.A., Colorado, Weld County: New Windsor.
Near a lake. Phenology: flowering.

U.S.A., Colorado, Jackson County: North Park.
On the creek. Phenology: flowering.

U.S.A., Colorado, Larimer County: Dale Creek
Creek. Phenology: flowering.

U.S.A., Colorado, Archuleta County: San Juan National Forest: Martinez Creek, Piedra District.
Shallow pond. Phenology: flowering.
Annotated by Jane W. Roller in 1961.
with S. D. Anderson

U.S.A., Colorado, Gunnison County: Sapinero.

U.S.A., Colorado, Routt County: Routt National Forest: near trail to South Fork Elk River.
Beaver pond. Phenology: fruiting.

U.S.A., Colorado, Rio Blanco County: White River National Forest: Marvine Creek Campground area.
Pond. Phenology: fruiting.

Ranunculus aquatilis var. diffusus ()
U.S.A., Colorado, Lake County: Lake Avanhoe: Hagerman Pass.
with N. T. Schedin

U.S.A., Colorado, Garfield County: Trapper's Lake.
New York Botanical Garden, 370. 8/13/1894.

U.S.A., Colorado, Costilla County: Sangre de Cristo Creek.
37.5057° N, 105.3152° W; NAD 83, uncertainty 9 mi., Nat. Geog. TOPO!
with F. K. Vreeland

U.S.A., Colorado, Conejos County: Dry Lake: 3 mi NE of Black Mountain; 4 mi SW of S end of La Jara Reservoir.
Pond with Salix and Carex aquatilus at margin. Phenology: fruiting.

U.S.A., Colorado, Conejos County: Near Fox Creek, 5.2 miles southeast of Dry Lake, 7 miles ESE of Black Mountain.
On SW exposure with Salix, Populus tremuloides, Festuca and Deschampsia. Phenology: flowering & fruiting.

U.S.A., Colorado, Denver County: Denver.
In pond. Phenology: flowering.
R. Duthie, No number. 6/18/1920.
with I. W. Clokey

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron, in the Aqua Fria Creek 1 mi W of Aqua Fria Trail Camp.
In the creek. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: 1 mi W of Zastro.
Common in creek. Phenology: fruiting.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: just below Lake Doris at Miranda Trail Camp.
In shallow water of pond. Phenology: flowering.

U.S.A., Colorado, Alamosa County: Ca 8 mi E of Alamosa, ca 1.5 mi N of U.S. Hwy 160.
Occasional in standing water with Hippuris and Lemna. Phenology: fruiting.
with J. Anderson and H. Dixon

U.S.A., Colorado, Costilla County: Sangre de Cristo Land Grant North of the Brownie Hills.
T35N R12E S2 SE1/4 of NE1/4
Abundant in flowing water of ditch. Phenology: flowering.
with J. Anderson and H. Dixon

U.S.A., Colorado, Boulder County: City of Boulder Open Space Lands, Doudy Draw on margin of stock pond below diversion canal.

U.S.A., Colorado, No county County:
In and under running water of a upper Colorado ditch. Phenology: fruiting.

U.S.A., Colorado, Gilpin County: Tolland.

U.S.A., Colorado, Boulder County: Near Boulder.
Valley. Phenology: fruiting.

U.S.A., Colorado, Boulder/Gilpin County: Smartweed Lake.

U.S.A., Colorado, Park County: One mi W of main highway on Fourmile Creek Road just SW of Fairplay.
In extensive wet meadow and in still pools. Phenology: flowering.
with A. Danielsen and P. Dalton

U.S.A., Colorado, Teller County: Florissant Fossil Beds National Monument: E of visitor center below the red barn.
Wet swale meadow. Phenology: flowering.

U.S.A., Colorado, Gunnison County: 14 mi North of Gunnison.
Pond. Phenology: vegetative only.

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

U.S.A., Wyoming, Lincoln County: Southern Salt River Range and Vicinity: Hams Fork River, ca 1 air mi N of Frontier.
Riverside meadows, sagebrush, and willows. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Range: Wallace Draw area, ca 7.5 air mi SE of Garrett.
Grassland. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Laramie Range: along Laramie River and adjacent hills, ca 35 air mi NE of Rock River; ca 54 air mi NE of Laramie.
Along the river. Phenology: flowering & fruiting.
with T. McGowan & T. Freeman

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
Riparian and floodplain, dominated by Salix and forbs.

U.S.A., Idaho, Clark County: Targhee National Forest: Centennial Mountains: E of Beaver Creek along Dairy Creek, ca 16 air mi N of Dubois.
T13N R36E S25; also S35
Plants aquatic.

U.S.A., Idaho, Lemhi County: Targhee National Forest and vicinity: Birch Creek Valley: Willow Creek, ca 1 air mi W of Nicholia.
T12N R29E S19; also S30
Plants aquatic.

U.S.A., Arizona, Gila County: Mazatzal Mountains: near Colloms Camp.
In running water. Phenology: flowering.
with Ruth A. Nelson

U.S.A., New Mexico, Bernalillo County: Albuquerque.
Conservancy pools, just above second bridge. Phenology: flowering.

U.S.A., Wyoming, Converse County: Laramie Range: along Ford Creek, ca 35 air mi SW of Douglas.
In creek. Phenology: flowering & fruiting.
with T. McGowan & J. Brondum

U.S.A., Arizona, no county County: Little Colorado River.
In streams. Phenology: flowering & fruiting.

U.S.A., New Mexico, Socorro County: Mogollon Mountains: on the Middle Fork Gila River.

U.S.A., Wyoming, Albany County: Laramie Range: Medicine Bow National Forest: along the Middle Branch Middle Lodgepole Creek, ca 11 air mi ESE of Laramie.
In water. Phenology: flowering & fruiting.
with T. McGowan & J. Brondum

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Flat Tops Wilderness: Marvine Lakes, ca 29 air mi ESE of Meeker.
Lake margins.
James P. Vanderhorst, 1867. 8/17/1990.

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Blue Lake, ca 30 air mi N of Glenwood Springs.
Shallow lake.
James P. Vanderhorst, 1969. 8/26/1990.

U.S.A., Wyoming, Albany County: Laramie Range: off of U.S. Hwy 287, ca 15 air mi SE of Laramie.
Creekside. Phenology: flowering & fruiting.
with T. McGowan

U.S.A., Wyoming, Converse County: Laramie Range: along Root Creek, ca 11 air mi SE of Glenrock; ca 19 air mi SW of Douglas.
Grassland with granite outcrops. Phenology: flowering.
with T. McGowan & J. Brondum

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Sweetwater Lake, ca 20 air mi NE of Glenwood Springs.
Aquatics on margins and in shallower waters of lake.
James P. Vanderhorst, 4049. 8/10/1991.

U.S.A., Wyoming, Natrona County: Laramie Range: ca 10.5 air mi SE of Casper on County Road 607.
Along creek and granite outcrops. Phenology: flowering.

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Flat Tops Wilderness: Sweetwater Creek, ca 22 air mi NNE of Glenwood Springs.
In creek.

U.S.A., Wyoming, Albany County: Laramie Range: along North Laramie River.
In river. Phenology: flowering & fruiting.

U.S.A., Colorado, Jackson County: Sierra Madre: main fork of Encampment River, ca 31.5 air mi NW of Walden.
Mudflats along river. Unusual; flowers white. Phenology: flowering.

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: Kettle River: First Thought Mountain, ca 2 air mi NE of Orient along Forest Road 4149.
Cottonwood pond and cedar woods on roadside. Phenology: flowering & fruiting.

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: Lower Colville River by canoe from bridge on the Drive-In Road to Meyers Falls Reservoir.
Flooded riverbank through cottonwoods, hawthorne thickets, and pastureland. Phenology: vegetative only.
with Jack Nisbet

U.S.A., Washington, Ferry County: Western Colville National Forest and Vicinity: headwaters of Barnaby Creek, ca 6 air mi SE of Sherman Pass along Forest Road 2014.
Old beaver ponds on creek. Phenology: flowering & fruiting.
with Diane Pavek

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
Grassy streamside, rocky flats, and willow thickets. Phenology: flowering.
with Bruce Embury

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

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: lake ca 1 air mi SW of Visser Peak.
Lake margin, limestone outcrop, and coniferous forest; lake margin. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Salt River Range: Big Fall Creek, ca 24 air mi SW of Big Piney.
Stream bottom with a series of limestone benches, waterfalls, and calcareous precipitate. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Salt River Range: South end of Deadline Ridge, ca 3 air mi NW of Viola.
Rocky slopes and ridges. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Wyoming/Salt River Ranges: Salt River Range: Commissary Ridge, southwest flank: Pole Creek, southern border of Bridger-Teton National Forest NNE 0.3 air mi.
Willow thickets and stream banks. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Northern Absarokas: Elk Creek near mouth on Sunlight Creek, ca 2.5 air mi W of Dead Indian Hill, ca 24.7 air mi NW of Cody.
In water rich in calcium carbonate. Phenology: fruiting.

U.S.A., Wyoming, Platte County: Laramie Mountains: Cottonwood Creek above the falls, ca 23 air mi NW of Wheatland; ca 11 air mi ENE of Laramie Peak.
In standing or slow moving water. Phenology: flowering & fruiting.
with Jan Pollet

U.S.A., Wyoming, Niobrara County: Just SW of Van Tassel along the Niobrara River, ca. 20 air miles SE of Lusk.
In the river with Rumex and Sagittaria. Abundant.
with Paul Ehrmann

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole: Springer Reservoir (Goshen Hole Reservoir) ca 1.5 air mi S of Yoder, ca 13.5 air mi SSW of Torrington.
In sandy clay in dry ground left by receding reservoir with Chenopodium, Leptochloa, and Spergularia. Common. Phenology: flowering & fruiting.

U.S.A., Wyoming, Washakie County: Bighorn Basin: in Cornell Gulch on the Nowater Trail, ca 2 air mi W of Nowood, ca 30.5 air mi S of Ten Sleep.
In a drying reservoir. Phenology: flowering & fruiting.

U.S.A., Wyoming, Johnson County: Big Horn Mountains: along North Clear Creek, just W of Hunter Ranger Station, ca 11 air mi WSW of Buffalo.
In the creek. Phenology: flowering & fruiting.
with B. E. Nelson

U.S.A., Wyoming, Fremont County: Carmody Lake, northwest edge, ca 2.5 air mi NW of Sweetwater Station.
In lake. Phenology: flowering.

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.
In creek where creek empties into lake. Phenology: flowering.
with Georgia Haines

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: Sweetwater River, ca 3 air mi NE of Jeffrey City.
Small pond of water above level of flowing river. Phenology: flowering.

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

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: ca 1 mi W of Forest Road 52 and 2 mi S of Union County, near Trout Meadows.
In and along stream; slope 0-10; aspect none. Phenology: flowering & fruiting.

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: North Fork John Day Wilderness: from Moon Meadows along Packsaddle Trail, near Forest Road 5225, ca 8 mi N and 6 mi W of Granite.
Meadow; slope 0-10; aspect easterly. Phenology: fruiting.

U.S.A., Oregon, Grant County: Umatilla National Forest and Vicinity: North Fork John Day Wilderness: from Forks Guard Station and Forest Road 5225 along Forks Trail, ca 11 mi N and 9 mi W of Granite.
Nearby sunny creek; slope 5-20; aspect north. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 22.5 air mi SE of Reno Junction.
Stream. Phenology: flowering & fruiting.
with Ronald L. Hartman

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Pond, grassy grazed area adjacent; 6-10" water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 11 air mi NW of Weston.
Plains, marsh along holding pond, flats, gravel roadside; 6" deep - marsh. Phenology: flowering & fruiting.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: [location and coordinates withheld]
Rocky hills, plains, holding pond, wet mud along creek beds, flats, moist grassy ditches; old creekbed - edge of water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: South Middle Pumpkin Butte.
Limber pine slopes, rocky slopes, small pools of water on upper east slopes, plains and outcrops on summit; small pool, submerged. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Big Horn Mountains: Clear Creek and Hunter Creek, at base of Hunter Ridge, ca 0.5 mi W of Hunter Ranger Station.
Outcrops at base of ridge; submerged in Hunter Creek. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Absaroka Mountains: ca 15 air mi SW of Meeteetse, junction of Wood River and the South Fork Wood River.
Wet area near the river. Phenology: flowering & fruiting.
Robert S. Kirkpatrick, 1678. 7/27/1983.
with Ruth E. B. Kirkpatrick and B. E. Nelson

U.S.A., Wyoming, Fremont County: Absaroka Mountains: ca 8.5 mi NE of Dubois, below Black Mountain along Wiggins Fork River.
Riparian woodland - lower montane, bordered with Picea pungens and Populus; swampy sites. Phenology: flowering & fruiting.
Robert S. Kirkpatrick, 2780. 6/21/1984.

U.S.A., Wyoming, Fremont County: Absaroka Mountains: ca 13 air mi NNW of Dubois, ca 2 air mi SW of Ramshorn Peak, in the vicinity and N of Five Mile Creek.
Locustrine, in a cow pond. Phenology: flowering.
Robert S. Kirkpatrick, 4349. 7/18/1984.

U.S.A., Wyoming, Fremont County: Absaroka Mountains: ca 14 air mi N of Dubois, in Burnt Timber Lake and ponds in the vicinity.
Locustrine. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Absaroka Mountains: ca 9 air mi N of Dubois, ponds ca 0.5 mi SW of Horse Creek Ranger Station.
Locustrine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: Big Horn Mountains: ca 20.5 air mi N of Arminto.
Limestone outcrop. Phenology: fruiting.

U.S.A., Wyoming, Carbon County: North Platte River at Saratoga.
River banks and submerged. Phenology: flowering.
with Lisa Brown and Gael Fonken

U.S.A., Wyoming, Natrona County: Rattlesnake Mountains: north slope S of Horse Heaven.
Pond and open drainage. Phenology: flowering.
with Gael Fonken

U.S.A., Wyoming, Park County: Absaroka Mountains: Boulder Basin Trail, Hunter Creek, and vicinity.
Margins of pond. Phenology: flowering & fruiting.
with Robert S. and Ruth E. B. Kirkpatrick

U.S.A., Oregon, Morrow County: Umatilla National Forest and Vicinity: Forest Road 2120 and 20, ca 21 mi S and 4 mi E of Heppner.
Under Douglas fir and grand fir overstory in a shady creek with organic soil, slope 0-5; aspect none. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Northern Absarokas: Crandall Creek Ranger Station.
Spruce lined stream bottom and adjacent open slopes. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 7 air mi ESE of Gillette.
Stream with adjacent eroded hills and plains; common in stream. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 5 air mi NNW of Turnercrest.
Moist drainage. Phenology: flowering & fruiting.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Campbell County: Powder River Basin: Pumpkin Buttes: South Middle Butte.
Upper slopes on north side. Phenology: flowering.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: south shore of Boulder Lake, 10 air mi E of Pinedale.
Submerged aquatics growing on muddy substrate in water less that 2 ft deep. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: banks of South Fork Boulder Creek and Dream Creek, ca 10 air mi E of east shore of Boulder Lake, ca 22.5 air mi E of Pinedale.
Aquatics in 2" of water. Phenology: flowering.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Wagon Creek, ca 40 air mi NNW of Pinedale.
Submerged or floating aquatic plant. Phenology: flowering.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: beaver pond adjacent to ford of Cottonwood Creek, ca 25 air mi E of Jackson.
Wet, open margins of pond. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: Kendall Warm Springs and bank of Green River adjacent to Warm Springs Falls, ca 30 air mi NNW of Pinedale.
Aquatic; growing in shallow eddy of Green River. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: Three Forks Park, ca 6 air mi SE of southern end of Upper Green River Lake, adjacent to Highline Trail.
Aquatic - rooted and submerged in small pond with muddy bottom, east of Highline Trail. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: north shore of New Fork Lakes, ca 17 air mi N of Pinedale.
Submerged aquatics growing in Lake. Phenology: flowering.

U.S.A., Wyoming, Sublette County: West Slope Wind River Range: South shore of Lower Green River Lake, ca 29 air mi N of Pinedale.
Submerged aquatic growing in small pond due S of lake. Phenology: flowering.

U.S.A., Wyoming, Teton County: West Slope Wind River Range: Mosquito Lake, 1/4 mi due E of Union Pass Road, ca 37 air mi NNW of Pinedale.
Submerged aquatics growing in lake. Phenology: flowering.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Rattlesnake Hills: Burnt Wagon Draw, ca 6.5 air mi S of Poison Spider or County Road 210; ca 31.2 air mi SW of Casper.
Willow thicket and marsh surrounding drainage. Phenology: flowering.

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, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 12 air mi SW of Wheatland.
Stream side. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Sublette County: Green River Basin: New Fork River, ca 10 air mi SW of Boulder, from old wooden bridge NE to section line.
Streamside and slope. Phenology: flowering.
with Thomas Cramer

U.S.A., Wyoming, Laramie County: Laramie Mountains: along Crow Creek W of County Road 109, ca 18 air mi W of Cheyenne; ca 11.1 air mi NE of Buford.
On shores of spring-fed pond surrounded by willow thickets. Phenology: flowering & fruiting.

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.
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.
with Jane T. Kellett

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: flowering.
with Jane T. Kellett

U.S.A., Wyoming, Sublette County: Green River Basin: Scab Creek and lower Toboggan Lakes, ca 11 air mi NE of Boulder.
Streamside and lakes, Douglas fir and lodgepole pine forests, and open slopes. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Green River Basin: South Piney Creek just E of Bridger-Teton National Forest, ca 19 air mi W of Big Piney.
Creek bottom willows and meadows; hillside Douglas fir stands and sagebrush meadows. Phenology: flowering.

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

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

U.S.A., Wyoming, Sublette County: Green River Basin: Dutch Joe Creek just S of Bridger-Teton National Forest, ca 2.5 air mi NNE of Leckie.
Creekside meadows and lodgepole pine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Blucher Creek just S of Bridger-Teton National Forest, ca 12 air mi E of Buckskin Crossing.
Creekside meadows, sagebrush, and lodgepole pine stands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Green River Basin: Green River at Slate Creek confluence, ca 1/2 air mi NE of Fontenelle.
Riverside beneath shale bluff, surrounding greasewood and rabbitbrush desert. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Warren Bridge, ca 9 air mi N of Daniel Junction.
Riverside meadows, willows, and sagebrush. Phenology: flowering.

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: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Horse Creek, ca 4.5 air mi SE of Merna.
Creekside meadows and willows. Phenology: flowering & fruiting.

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

U.S.A., Wyoming, Sublette County: Green River Basin: Little Sandy Creek, ca 5 air mi SE of Leckie.
Creekside meadows, willows, and sagebrush. Phenology: flowering & fruiting.
with Ben and Becky Cramer

U.S.A., Wyoming, Fremont County: Green River Basin: Sweetwater River, ca 8.5 air mi SW of South Pass City.
Riverside meadows, willows, and sagebrush. Phenology: flowering & fruiting.
with Ben and Becky Cramer

U.S.A., Wyoming, Sweetwater County: Green River Basin: Big Sandy Reservoir and River, ca 9.5 air mi N of Farson.
Reservoir edge sagebrush, riverside meadows and sagebrush. Phenology: flowering.
with Ben and Becky Cramer

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

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

U.S.A., Wyoming, Lincoln County: Green River Basin: Green River, ca 6 air mi S of La Barge.
Riverside meadows and willows. Phenology: flowering & fruiting.
with Ronald L. Hartman

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: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: South Cottonwood Creek, ca 11 air mi WSW of Daniel.
Creekside meadows, willows, and mudholes. Phenology: flowering.

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: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: ca 2 air mi S of Boulder.
Gravel roadsides and irrigation ditchsides. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Green River Basin: south end of Slate Creek Ridge, ca 11.5 air mi NNE of Kemmerer.
Wet meadow draw with sagebrush sides and shrub islands. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Green River Basin: Boulder Creek, ca 3.5 air mi N of Boulder.
Creekside and sagebrush slopes. Phenology: flowering.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: along Blacktail Creek, ca 10.7 air mi SE of Hulett, ca 11.3 air mi NW of Sundance.
In old beaver ponds. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: [location and coordinates withheld]
In water. Phenology: flowering.
with Dennis Horning

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

U.S.A., Wyoming, Crook County: [location and coordinates withheld]
In water. Phenology: flowering.

U.S.A., Wyoming, Crook County: Black Hills: Miller Creek, Garman Ranch; ca 9.5 air mi SSE of Devils Tower.
In water(creek). Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains, Cook Lake; ca 7.2 air mi SSE of Alva.
In water. Phenology: flowering & fruiting.
with Dennis Horning

U.S.A., Wyoming, Crook County: Black Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.
In water near shore. 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.
Grassland, reservoir margins. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills, Coal Divide just N of I-90 (near parking area), ca 9 air mi SW of Sundance.
Grassland, small reservoir, in water. Phenology: flowering.

U.S.A., Wyoming, Crook County: [location and coordinates withheld]

U.S.A., Wyoming, Weston County: Black Hills: W of Wyo Hwy 116 near junction with Arch Creek Road, ca 5 air mi NNE of Upton.
Big sagebrush-grassland, shallow water in reservoir. Phenology: flowering & fruiting.

Creek - in water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Weston County: Black Hills: West Plum Creek ca 4 mi N of confluence with East Plum Creek, ca 11 air mi NNW of Newcastle.
Grassland, reservoir margin in water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Black Hills: Sand Creek between Mallory Gulch and Spotted Tail Gulch, ca 10.5 air mi S of Beulah.
In water. Phenology: flowering.

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; pond margin. Phenology: flowering & fruiting.

U.S.A., Wyoming, Crook County: Devils Tower National Monument: just W of bridge.
Somewhat common in shallow spots near banks. Phenology: vegetative only.

U.S.A., Wyoming, Crook County: Ca 2.6 mi S of Beulah, on the Sand Creek Road.
Sandy stream bottom, mostly submerged with Nasturtium officinale. Flowers white. Phenology: flowering & fruiting.
with John Julien

U.S.A., Arizona, Apache County: Apache National Forest: Nutrioso.
Ranunculus aquatilis L. var. diffusus With..
Accession: RMRS (unaccessioned)

U.S.A., Arizona, Apache County: Near Basin Lake.
Phenology: buds.
Ranunculus aquatilis L. var. diffusus With..
with Tenney
Accession: RMRS (unaccessioned)

U.S.A., New Mexico, Taos County: Along road Questa-Lake Cabresto.
Open pine forest; floating in creek. Petals white, aquatic. Phenology: flowering & fruiting.
Annotated by Ronald L. Hartman.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: wetland below dike on south shore of No. 2 Lake, 7.5 air mi E of Cimarron.
Small wetland with standing water, emergent aquatic vegetation. Abundant; leaves submerged; petals white, emergent. Phenology: flowering.
Annotated by Ben Legler on 1/20/2008.
with Neil Snow

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small unnamed pond on south side of Van Bremmer Road 0.15 mi E of junction with Cimarron Road, in Van Bremmer Park.
Shallow pond in open meadow, with receeding water line, damp muddy margins; with Potamogeton, Ranunculus aquatilis, Veronica peregrina. Petals white, emergent above water; leaves all submerged; common in pond. Phenology: flowering.
Annotated by Ben Legler on 1/20/2008.
with Neil Snow

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: unnamed pond on divide between Spring Canyon and the Canadian River 0.2 air mi S of Colorado and 8 air mi NW of Casa Grande.
Shallow pond with surface nearly covered in Potamogeton, bottom dominated by Myriophyllum, edges ringed by Eleocharis; muddy bottom. Petals white, flowers emergent; scattered in shallow water. Phenology: flowering & fruiting.
Annotated by Ben Legler on 1/20/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Van Bremmer Creek 2.8 air mi S of Colfax and 2.4 air mi SE of U.S. Hwy 64.
Sluggishly flowing stream with deep channel, banks dominated by Schoenoplectus, with Potamogeton and Ranunculus aquatilis submerged in water. Petals white with yellow bases; plants submerged in stream with only the flowers emergent; common. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Vermejo Park Ranch: along Costilla Creek where road to Costilla Lodge crosses creek; 4.5 air mi ENE of Big Costilla Peak.
Wet streamside meadow with Poa, Carex, Luzula, Castilleja sulphurea, Campanula parryi; heavily grazed by elk and horses. Petals white with yellow bases; plants forming large patches submerged in flowing water with only the flowers emergent; common. Photographed. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: cattle watering pond in headwaters of Caliente Canyon, 7.2 air mi ENE of Casa Grande.
Man-made pond with muddy exposed banks dominated by Ranunculus aquatilis, Callitriche palustris, Glyceria grandis. Petals white with yellow base; common in mud around pond. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: south side of Merrick Lake; 8.2 air mi WNW of Casa Grande.
Marshy lake shore and lake shallows, with Schoenoplectus, Juncus spp., Beckmannia syzigachne, other grasses. Flowers white, emergent; leave and stems floating beneath water surface, forming large floating mats in middle of lake. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: west and north shores of Bartlett Lake; 8.5 air mi W of Casa Grande.
Sandy and cobbly lake shallows dominated by Schoenoplectus and Potamogeton; very clear water. Petals white; stems either short and creeping along sandy bottom in 1-2 meter deep water; or long and slender and reaching to surface. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Vermejo Park Ranch: pond at Number One Camp along main road to Costilla Lodge on east side of Costilla Creek valley; 2.5 air mi SW of Underwood Lakes.
Small man-made pond with surface nearly covered by Hippuris vulgaris and Ranunculus aquatilis, shores lined with Carex. Petals white with yellow bases; flowers emergent; stems and leaves submerged; common. Photographed. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: southeast shore of French Lake; 1.4 air mi E of Cimarron.
Shallow man-made lake with exposed muddy shoreline sparsely vegetated with with Chenopodium glaucum and Grindelia squarrosa; lake shallows with patches of Alisma gramineum, Ranunculus aquatilis. Petals white with yellow bases; frequent in lake shallows. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small manmade pond in East Fork Chimney Canyon 7.9 air mi E of Vermejo Park and 1.8 air mi SW of NM Hwy 555.
Clear water with Myriophyllum sibiricum, Ranunculus aquatilis; muddy shoreline. Petals white with yellow base, anthers yellow, flowers emergent; common in shallows. Photographed. Specimen GPS: 36.895573, -104.841911. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small man made pond in Salyers Canyon 1.8 air mi due E of west end of NM Hwy 555 and 5.5 air mi E of Vermejo Park.
Shallow pond with exposed muddy banks, rimmed by Ranunculus aquatilis, Myriophyllum sibiricum, Potamogeton foliosus. Petals white with yellow base; anthers yellow; abundant. Specimen GPS: 36.876842, -104.887924. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Cerrososo Creek 2.1 air mi N of mouth of Plaza Canyon; 8.5 air mi NNE of Cimarron.
Small flowing stream with marshy banks, with Eleocharis, Juncus balticus, and Rorippa nasturtium-aquaticum. Floating in pool in stream; flowers emergent, petals white. Specimen GPS: 36.634754, -104.888741. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: around small pond in Gonzalez Canyon 0.3 air mi S of Colorado and 7.3 air mi NW of Vermejo Park.
Manmade pond with Ranunculus aquatilis and Sparganium emersum, surrounded by moist sloping meadow. Petals white with yellow at base; stems and leaves submerged, flowers emergent. Specimen GPS: 36.990547, -105.066925. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: at old Catskill townsite along the Canadian River 0.6 air mi NW of mouth of Arch Redd Canyon; 20.1 air mi W of Raton.
Flat grassland along river bottoms, appearing weedy, bisected by small river channel with small pools of standing water. Petals white, yellow at base; anthers yellow; flowers emergent; leaves submerged; frequent in pools along river channel. Specimen GPS: 36.941685, -104.808853. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Little Vermejo Creek 0.4 air mi S of Colorado.
Fast-flowing stream with gravelly bottom; banks lined with Betula occidentalis, Salix, Juncus, and Thermopsis. Petals white with yellow base; stems prostrate in wet mud of drying pool. Specimen GPS: 36.99165, -105.135185. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: Munn Lake; 3.7 air mi NE of Vermejo Peak.
Shallow, weedy lake margins; 1-2 meter deep water; dominated by Chara and Myriophyllum sibiricum. Petals white with yellow base; flowers emergent; stems submerged in 1-2 meter deep water; occasional. Specimen GPS: 36.91629, -105.1542. Phenology: flowering & fruiting.

U.S.A., New Mexico, Taos County: Vermejo Park Ranch: Culebra Range: second lake up from bottom in Seven Lakes chain; in lower part of Long Canyon 3.3 air mi ESE of summit of Big Costilla Peak.
Small manmade lake with gravelly bottom and clear water; rimmed by Carex and Glyceria grandis; with Elodea canadensis and Potamogeton gramineus in shallows. Submerged in up to 1 meter deep water; uncommon. Specimen GPS: 36.911812, -105.267967. Phenology: fruiting.

U.S.A., Montana, Carbon County: Beartooth Mountains: Custer National Forest: along West Rosebud Creek, on the forest boundary, ca 20 air mi NW of Red Lodge.
Wet slope also stream and pond banks. Phenology: fruiting.

U.S.A., Montana, Park County: Beartooth Mountains: Gallatin National Forest: E of U.S. Hwy 212 and Clarks Fork Yellowstone and Broadwater rivers at Vernon Lake, ca 31 air mi WSW of Red Lodge.
Aquatic. Phenology: flowering & fruiting.
with Brian Elliott and Bonnie Hiedel

U.S.A., Montana, Sweet Grass County: Absaroka Range/Beartooth Mountains: Gallatin National Forest: along Forest Road 6639 and the Boulder River, ca 22 air mi SE of Livingston.
Fully aquatic in beaver pond. Phenology: flowering & fruiting.
with Brian Elliott

U.S.A., Wyoming, Park County: Beartooth Mountains: Shoshone National Forest: Canyon Creek drainage, Sawtooth Lake WSW of Sawtooth Mountain, ca 5 air mi S of Beartooth Pass, ca 33 air mi NW of Cody.
Rocky slope along the lake shore with Engelmann spruce and five-needle pine. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Boswell Creek, N of Forest Road 526, ca 4 mi E of Wyo Hwy 230; ca 4 air mi E of Wycolo; ca 21 air mi S of Centennial.
Mud flats in creek. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: S of Elkhorn Creek and North Platte River area W of Forest Road 534, ca 48 air mi SW of Saratoga.
In river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Platte River Wilderness: Douglas Creek Trail, ca 39 air mi SE of Saratoga; ca 8 air mi W of Foxpark.
In creek. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: vicinity of Pass Creek, S of intersection of Forest Road 261 (Cedar Pass Road) and Forest Road 134, ca 18 air mi E of Saratoga; ca 15 air mi SW of Arlington.
In creek. Phenology: flowering.

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in and around Blacks Pond off of Forest Road 4021, ca 17 air mi S of Ashland.
In calm water at margin of reservoir. Phenology: flowering & 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.
Accession: (unaccessioned), Barcode: USFS0050775

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.
with G. Gust

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: ca 0.5 air mi S of the junction of Forest roads 3818 and 3036, ca 3.5 air mi WNW of Lantis Spring and ca 22 air mi SE of Ekalaka.
Flowing-water draw with juniper, cottonwood, and green ash. Phenology: fruiting.

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Homestake Road, ca 13 air mi S of Dowds Junction and 6 mi W of U.S. Hwy 24.
Ponds and wet meadows. Phenology: flowering & fruiting.
Michael K. Kirkpatrick, 4388. 8/12/2010.

U.S.A., Montana, Valley County: E of Windy Ridge Road, adjacent to unnamed reservoir, ca 1 air mi NNW of Erie Reservoir, ca 16.5 air mi N of Hinsdale; ca 37 air mi NNW of Glasgow.
In shallow water. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 2392. 7/27/2010.

U.S.A., Montana, Valley County: Mont Hwy 24 at bridge over Dry Fork Creek, ca 8.5 air mi SE of Forsman Reservoir, ca 23.5 air mi NNE of Glasgow.
Shallow water over muddy bank. Phenology: flowering & fruiting.
Joseph L. M. Charboneau, 2463. 7/29/2010.

U.S.A., Montana, Phillips County: Reservoir on Cottonwood Creek, E of Turkey Track Road, ca 4 air mi NE of Charley Reservoir, ca 15.5 air mi NE of Whitewater; ca 45 air mi NNE of Malta.
Shallow water. Phenology: flowering.
Joseph L. M. Charboneau, 3474. 8/19/2010.

U.S.A., Montana, Phillips County: Little Rocky Mountains: Beaver Creek, ca 1.5 air mi ENE of the intersection of the road from Camp Creek and the Beaver Creek Trail, ca 2 air mi E of Beaver Mountain, ca 3 air mi NNE of Zortman; ca 41 air mi SW of Malta.
Aquatic. Phenology: flowering.

U.S.A., Colorado, Jackson County: North Park: Arapaho National Wildlife Refuge: ca 4 air mi SW of Walden.
Open water. White flowers. Phenology: flowering.

U.S.A., Colorado, Custer County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: Forest Road 305 at the National Forest boundary, ca 15 air mi S of Canon City.
with Elizabeth Mark and Kenneth Elliott

U.S.A., Montana, Gallatin County: Bozeman.

U.S.A., Montana, Glacier County: Glacier National Park: Two Medicine Lake.s
Near inlet. Phenology: fruiting.

U.S.A., South Dakota, Lawrence County: Boxelder Creek, 4 mi NW of Nemo.
Brookside; willow and birch association; mesophytic. Phenology: flowering.

U.S.A., Montana, Gallatin County: Sedan.

U.S.A., Montana, Missoula County: Rock Creek, ca 4 mi above Bonita Ranger Station.
Quiet pool near the creek. Phenology: buds.

U.S.A., Montana, Gallatin County: 3 mi S of Bozeman.
Pool of water. Phenology: flowering.

U.S.A., Montana, Gallatin County: Bear Lake.
Running stream. Phenology: flowering.

U.S.A., Montana, Madison County: Jack Creek Canyon.
with Ernst A. Bessey

U.S.A., Montana, Beaverhead County: 19 mi from mouth of Wise River.
Muddy pond. Phenology: flowering & fruiting.
with C. V. Muhlick

U.S.A., Montana, Mineral County: Lolo Ranger Station on Lolo Creek.

Ranunculus aquatilis var. diffusus ()
U.S.A., Montana, Ravalli County: Sula: tributary to upper right lake of Bitterroot River.
In slow stream. Phenology: fruiting.

U.S.A., Montana, Park County: Shields River, N of Wilsall.

U.S.A., Montana, Park County: Shields River, north of Wilsall.
Wilhelm N. Suksdorf, 593. 7/24/1921.

U.S.A., Montana: Glacier National Park: Lower Kennedy Lake.
About lake. Phenology: fruiting.
with George Piranian

U.S.A., Montana, Glacier County: Glacier National Park: Swiftcurrent Lake Number 5.
vicinity of lake. Phenology: fruiting.

U.S.A., Montana: Glacier National Park: Lower Two Medicine Lakes.

U.S.A., Montana: Glacier National Park: Going-to-the-Sun Highway: Lost Lake.
Glacial gouge lake in soft water. Phenology: flowering & fruiting.

U.S.A., Montana: Beaverhead National Forest: Coyote Creek.
Gentle west slope; in water. Phenology: flowering.

U.S.A., Montana: Jefferson National Forest.
Southwest slope. Phenology: flowering & fruiting.

U.S.A., Montana, Powell County: Helena National Forest: Little Blackfoot Creek.
Floating in muddy water of the creek. Phenology: flowering & fruiting.

U.S.A., Montana, Madison County: Gallatin National Forest: Norris Hot Springs, in creek.
Aquatic in shallow stream. Common. Phenology: flowering.
with Kirby Whitham

U.S.A., Montana, Missoula County: Lolo National Forest: along MT-20 and Union Creek, 0.5 mi above junction with Blackfoot River, 15 mi E of Missoula.
Shallow roadside ditch; aquatic. Locally common. Phenology: flowering & fruiting.

U.S.A., Montana: Custer National Forest: Otter Creek District: Horse Creek.
Southwest slope; in stream. Common. Phenology: flowering.

U.S.A., Montana, Powell County: Deerlodge National Forest: W fork of Rock Creek. TC1-TC2.
Gravelly muddy streambank; on rocks. Sparse and scattered. Phenology: buds.
Graham M. Cadwell, 4. 7/15/1934.

U.S.A., Montana, Gallatin County: Gallatin National Forest: slough on Madison River where Gallatin Hwy crosses.
Level ground; deep moist slough with running water; aquatic. Common. Phenology: flowering.

U.S.A., Montana, Gallatin County: Gallatin National Forest: Upper Mystic Lake.
Level ground; muddy lake shore in shallow water. Not common. Phenology: fruiting.

U.S.A., North Dakota, Ward County: Hwy 50, 11 mi E of Hwy 8.
Pothole with Eleocharis. Abundant. Phenology: flowering.

U.S.A., Nebraska, Webster County: 2 mi N of Amboy, bordered by county road (west) and railroad (east).
Large spring fed marsh; submersed in spring run. Phenology: flowering.

U.S.A., Nebraska, Brown County: Wildlife Management Area.
Anchored in 1.2m water. Common. Phenology: buds.

U.S.A., North Dakota, Mercer County: Indianhead Coal Mine: Orphan mine spoils.
Submerged near edge of pond in trench. Common. Phenology: flowering.

U.S.A., South Dakota, Day County: Waubay National Wildlife Refuge: southeast side of Spring Lake.
submerged in shallow water of fresh marsh. Common. Phenology: flowering.

U.S.A., Colorado, Pueblo County: [location and coordinates withheld]
Aquatic, pondside. Phenology: flowering & fruiting.
with Elizabeth Mark

U.S.A., Colorado, Huerfano County: [location and coordinates withheld]
Aquatic and pondside. Phenology: flowering & fruiting.
with Elizabeth Mark

U.S.A., Wyoming, Fremont County: Upper North Platte and Laramie River Drainages: Big Diamond Spring N of Diamond Springs Road, ca 20.3 air mi NE of Jeffrey City.
Creek drainage and holding pond. Phenology: flowering.

U.S.A., Montana, Phillips County: American Prairie Reserve: W of Reynolds Hill Road, ca 4.5 air mi W of Square Butte, ca 40.5 air mi ESE of Zortman; ca 42 air mi SSE of Malta.
In or on shores of stock pond. Phenology: flowering & fruiting.
with Mark Majerus, Michael Dolan, Noorjahan Parwana, and Katie Butts

U.S.A., Montana, Phillips County: Korsbeck Waterfowl Production Area: W of Stage Road, ca 8 air mi N of Ester Lake, ca 24 air mi NNE of Zortman; ca 21.5 air mi SW of Malta.
In water of pond. Phenology: flowering.

U.S.A., Montana, Phillips County: Unnamed reservoir S of the intersection of Emond and First Creek Hall Roads, ca 10.5 air mi NW of Indian Lake, ca 26 air mi ESE of Zortman; ca 35 air mi S of Malta.
Submerged in or floating on water of reservoir. Phenology: flowering.

U.S.A., Wyoming, Albany County: Medicine Bow National Forest: Laramie Range: North Branch Middle Fork Lodgepole Creek, ca 0.6 air mi E of Carey Road (Forest Road 713), ca 13.5 air mi ESE of Laramie.
Small beaver pond, submerged in shallow water at willow margin near dam; occurs with Myriophyllum sibiricum, Ranunculus gmelinii, and Sparganium angustifolium. Locally common. Phenology: flowering.

U.S.A., Colorado, Grand County: Blue Valley Ranch: Beaver ponds.
Riparian area around beaver ponds. Phenology: buds.

U.S.A., Montana, Carbon County: Beartooth Mountains: Custer National Forest: along West Rosebud Creek, on the forest boundary, ca 20 air mi NW of Red Lodge.
Wet slope also stream and pond banks. Phenology: fruiting.
Accession: USFS (unaccessioned), Barcode: USFS0047876

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in and around Blacks Pond off of Forest Road 4021, ca 17 air mi S of Ashland.
In calm water at margin of reservoir. Phenology: flowering & fruiting.
Accession: (unaccessioned), Barcode: USFS0050349

U.S.A., Arizona, Coconino County: Coconino National Forest: Buck Mountain Flats, ca mi S of Happy Jack Ranger Station.
T15N R9E S27; also S21 and S28
Ponderosa pine forest. IMAX unburn Phenology: flowering & fruiting.

U.S.A., Colorado, Delta County: Grand Mesa: Grand Mesa National Forest: Twin Lakes; slope N of Twin Lake #2, S to east side of Twin Lake #1, ca 12 3/4 air mi NE of Cedaredge.
Along drying edge of subalpine lake. Phenology: flowering & fruiting.
1. Ranunculus aquatilis L. var. diffusus With..

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.

U.S.A., Colorado, Delta County: Gunnison Gorge Wilderness: West River Trail from wilderness boundary S to where trail ends at cliff, ca 3/4 trail mi from wilderness boundary, ca 7.5 air mi SW of Hotchkiss.
In the water in lowland riparian. Phenology: flowering & fruiting.
1. Ranunculus aquatilis L. var. diffusus With..

U.S.A., Wyoming, Fremont County: Absaroka Range: Wyoming Game and Fish Department's East Fork Big Game Winter Range: on Bear Creek, ca 9 air mi NE of Dubois.
In 1-6" of water in beaver ponds. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River Drainage: near Hardpan Lake.

U.S.A., Idaho, Custer County: Challis National Forest: Cape Horn Area: vicinity of Bench Creek 0.5 mi NE of Banner Summit, 15.7 air mi WNW of Stanley.
Clay or silt in hydric wetland vegetation; 3° slope, E aspect; morainal geology. 1-25 individuals apparent. Phenology: flowering.

U.S.A, Idaho, Custer County: Challis National Forest: White Knob Mountains: first draw W of the confluence of Flower Garden and Cherry Creek, 12.0 air mi S of Mackay.
>150 plants estimated in hydric fine textured soil within a wetland area, 12 degree slope, S aspect, alluvial geology. Phenology: flowering & fruiting.
with Craig Scott

U.S.A, Idaho, Custer County: Challis National Forest: Eastern Boulder Mountains: valley of the North Fork Big Lost River, between Slide and Corral canyons, 16.4 air mi NNE of Sun Valley.
25-75 plants estimated in hydric fine textured soil within a wetland area, no slope, shale geology. 25-75 plants estimated. Phenology: flowering.
with Ben Legler

U.S.A, Idaho, Lemhi County: Salmon National Forest: Salmon River Mountains: along Pony Creek, just above Napias Creek, 11.9 air mi W of Salmon.
<25 plants estimated in hydric fine textured soil within herbaceous riparian vegetation, 6 degree slope, NW aspect, rhyodacite geology. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sweetwater County: Basins and Mountains of Southwest Wyoming: Seedskadee National Wildlife Refuge: ca 30 air mi NW of Green River; ca 2.3 road mi S of Headquarters along irrigation ditch.
41.9041° N, 109.8277° W; uncertainty .5 mi., Digital Map
Irrigation ditch for wetland ponds. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Salt River Range: Commissary Ridge, Mink Creek Lake, ca 13.5 air mi SE of Afton.
Growing in wet mud of receding lake, not growing in water. Few scattered plants, under 1 in tall; petals mostly white. Phenology: vegetative only.

U.S.A., Montana, Madison County: Madison Valley: Eight Mile Ford Fishing Access site, ca 4 air mi S of Ennis, along County Road 36.
Submerged in a river. Phenology: flowering.
1. Ranunculus aquatilis L. var. diffusus With..

U.S.A., Montana, Madison County: Madison Valley: BLM Palisades Recreation Area, ca 26 air mi S of Ennis, ca 12 air mi NE of Black Butte.
Shallow, moving water in a river. Phenology: flowering & fruiting.

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Homestake Road, ca 13 air mi S of Dowds Junction and 6 mi W of U.S. Hwy 24.
Ponds and wet meadows. Phenology: flowering & fruiting.
Michael K. Kirkpatrick, 4388. 8/12/2010.
Accession: USFS (unaccessioned), Barcode: USFS0061068

U.S.A., Wyoming, Albany County: Laramie Range: Middle Crow Creek, W of Forest Road 705, ca 8.5 mi SE of Laramie.
464499E, 4563146N; NAD 83, Specimen Label
Valley bottom fen, rooted in moss lining open pools; with Ranunculus aquatilis var. diffusus. Common. Phenology: fruiting.

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: Love Mesa, off Forest Road 500, ca 23.5 air mi SW of Delta.
In mud on edge of drying pond. Phenology: flowering & fruiting.
with Joe E. Brummer

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: Roubideau area, Oak Hill and Transfer Trail, ca 18 air mi SW of Montrose.
Shallow montane pond. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: [location and coordinates withheld]
River bottom and wetland, cottonwoods, willows. Phenology: flowering & fruiting.

U.S.A., Wyoming, Lincoln County: Basins and Mountains of Southwest Wyoming: ca 1.0 air mi E of Fontenelle Store; 0.9 mi E on county road on southeast side of the Green River.
Cottonwoods, river bottom. Phenology: flowering & fruiting.

U.S.A., Wyoming, Albany County: Ca 24 mi W of Wheatland.
42° 5.3' N, 105° 26.7' W; NAD 83, uncertainty .25 mi., Nat. Geog. TOPO!
Shallow water, with Beckmannia and Alopecurus. Flower white; plants floating. Phenology: flowering.

U.S.A., Wyoming, Johnson County: Big Horn Mountains: North Fork Powder River Wilderness Study Area: on the river, ca 30 mi NW of Kaycee.
Growing in river, small backwaters, gravel bottom; shaded by Populus angustifolia, Salix exigua, Cornus sericea.

U.S.A., Wyoming, Laramie County: Laramie Range: Belvoir Ranch, ca 15 air mi SW of Cheyenne, along Lone Tree Creek.
Submerged in reservoir of impounded creek. Common.

U.S.A., Idaho, Idaho County: Bitterroot Mountains: Packer Meadow and Packer Creek, ca 1.5 air mi NNE of Lolo Pass Visitor Center.
Riparian of creek. Phenology: flowering & fruiting.
with Mike Hays

U.S.A., Idaho, Idaho County: Clearwater Mountains: Bimerick Meadows Research Natural Area: along Bimerick Creek and termination of Forest Road 5545, ca 11 air mi NE of Lowell.
Swampy meadows dominated by Carex utriculata, with slightly elevated areas inhabited by robust communities of Veratrum californicum. Phenology: flowering & fruiting.
with Mike Hays

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Ferris Mountains: Sand Creek Canyon at east end of range, ca 17 air mi N of Independence Rock.
Creek and adjacent sand dunes. Phenology: fruiting.

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Pathfinder Reservoir and Mountain: Bishop Point Recreation Area, ca 3.4 air mi W of County Road 409; ca 10.5 air mi SW of Alcova townsite.
Along creek; graminoids dominant; Ribes and big sage common. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: Edge of Roaring Fork Lake.

U.S.A., Wyoming, Carbon County: Sierra Madre: North Fork Encampment River, ca 8.5 air mi SW of Encampment.
In abandoned beaver pond. Very few plants; flowers white. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Hayden National Forest: Jack Creek.
Moderate north slope; rocky loam. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Limestone Mountain.
Dry lake. Phenology: flowering.

U.S.A., Wyoming, Fremont County: Sinks Canyon, downstream from Bruce Camp.
Growing in northeast edge of the second pond. Phenology: flowering.

U.S.A., Wyoming, Albany County: Medicine Bow National Forest: Middle Crow Creek, ca 12 mi (S)E of Laramie.
Along creek and adjacent slopes, floating on beaver pond. Common; peduncles and flowers emergent; petals white. Phenology: flowering.

U.S.A., Wyoming, Carbon County: Hayden National Forest: Jack Creek.
Moderate north slope; rocky loam. Phenology: flowering.
2. Ranunculus aquatilis L. var. capillaceus (Thuill.) DC.
Annotated by Jane W. Roller in 1961.

U.S.A., Wyoming, Fremont County: Edge of pond back of Sheridan Creek Ranger Station.
Muck soil. Phenology: flowering.
2. Ranunculus aquatilis L. var. capillaceus (Thuill.) DC.
Annotated by B. E. Nelson in 1987.
Richard T. Guthrie, 46. 6/29/1914.

U.S.A., Wyoming, Lincoln County: Ca 1.8 mi due E of Idaho at confluence of Shale Hollow with Salt Canyon.
Marsh community along stream. Phenology: flowering.

U.S.A., Wyoming, Converse County: Laramie Mountains: La Bonte Creek along County Road C-7, ca 18.5 air mi S of Douglas.
In slow stream. Common. Phenology: flowering.

U.S.A., Wyoming, Platte County: Cottonwood Creek, 29 road mi NW of Wheatland.
Creek banks, live water. Phenology: flowering.

U.S.A., Wyoming, Albany County: Rock River.
Slough pool. Ecological Suravey of Vegetativ Succession Under Irrigation. Phenology: flowering.
2. Ranunculus aquatilis L. var. capillaceus (Thuill.) DC.
Annotated by B. E. Nelson on 2//1978.
J. Francis Macbride, 2749. 7/5/1914.

U.S.A., Wyoming, Laramie County: Crow Creek, southeast edge of Warren Air Force Base.
Pond along creek, with Elodea canadensis, Veronica. Flowers white. Phenology: flowering.

U.S.A., Wyoming, Lincoln County: Northern Wyoming Range: southeast shore of Baily Lake, ca 14 air mi E of Alpine.
Aquatic plants floating on surface but rooted to muddy bottom. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: E of Ranchester, Kleenburn Coal Tipple.
T57N R85W
Strip mine pond, in shallow water on calcareous (?) mud buttom. Abundant; flowers white. Phenology: flowering.

U.S.A., Colorado, Uinta County: Evanston.
In a spring fed pond. Phenology: flowering.

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

U.S.A., Wyoming, Albany County: Rock River.
Stagnant, or nearly stagnant water. According to the field book of J. Francis Macbride, the date should be June 30, 1913. Phenology: flowering.

U.S.A., Wyoming, Albany County: On Nueces Ranch along Laramie River, ca 1/4 mi downstream from ranch cowpens, ca 25 mi SW of Wheatland,
In the river. Phenology: flowering.

U.S.A., Wyoming, Sweetwater County: NE of Little Mountain, ca 32.5 air mi S of Rock Springs.
Aquatic in old beaver pond with Juncus balticus and Rumex paucifolius. Phenology: flowering.

U.S.A., Wyoming, Park County: Shoshone National Forest: Crandall Creek, Olson's slough.
Stagnant water. Phenology: flowering.
with Dorothy Pearson

U.S.A., Wyoming, Lincoln County: In the Salt River W of Afton.
42.7216° N, 110.9769° W; NAD 83, uncertainty 0.5 mi., Digital Map
Flowers white; leaves stiff Phenology: flowering.

U.S.A., Wyoming, Natrona County: Casper Mountain area: near a small pond on south side of Gothmore Loop.
Growing in 2-3 ft of water, small pond just off the road. Phenology: flowering.

U.S.A., Wyoming, Sheridan County: Little Goose Creek.
3. Ranunculus circinatus Sibth. var. subrigidus (W. Drew) L.D. Benson
Annotated by C. L. Porter on 3/16/1949.

U.S.A., Wyoming, Albany County: Laramie Range: Kennedy Vale Ranch, ca 25 mi SW of Wheatland.
Floating in lake. Flowers white. Phenology: flowering & fruiting.

U.S.A., Wyoming, Campbell County: Black Thunder Strip Mining Area: North Prong of Thunder Creek and Little Thunder Creek.
Stream bottom wet; blue grama, saltgrass, Western wheatgrass, prairie cordgrass; loamy, bare, clayey, Absted and Bone Series soil. Phenology: flowering & fruiting.
2. Ranunculus longirostris Godr.
Annotated by Ronald L. Hartman on 11//1979.
with D. W. Sabinske

U.S.A., Wyoming, Sheridan County: Hidden Water Coal Site.
Aquatic; pool in strip mine spoils. Monarch Quadrangle. Phenology: flowering & fruiting.
2. Ranunculus longirostris Godr.
Annotated by Ronald L. Hartman on 11//1979.
with L. M. Mayer

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: S of Albany.
In running water. Phenology: flowering.
Annotated by B. E. Nelson on 2//1979.
Wilhelm G. Solheim, 232. 7/2/1930.

U.S.A., Wyoming, Park County: Yellowstone National Park: Soda Butte.
In some pools of water. Very abundant. Phenology: flowering & fruiting.
with Elias Nelson

U.S.A., Wyoming, Albany County: Laramie Range: Medicine Bow National Forest: Pole Mountain District: W of Eagle Rock, along the North Branch Middle Fork Lodgepole Creek.
Moist bottomland along the creek; aquatic; in beaver ponds and streams. Abundant; forms mats on top of the water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Fremont County: In Ring Lake.
Submerged. Phenology: flowering & fruiting.
Annotated by Ronald L. Hartman.

U.S.A., Wyoming, Teton County: Jackson Hole Wildlife Park: Moose Island.
43.8622° N, 110.5466° W; NAD 83, uncertainty 0.5 mi., Digital Map
Shallow water. Phenology: flowering & fruiting.
with Mildred S. Reed

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: 3.9 miles E of Mountain Home in Boswell Creek.
In about 18" of water of a slow stream. Common. Phenology: flowering.
with Linda Nelson

U.S.A., Wyoming, Sheridan County: Upper Colorado Ditch.
In and under running water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Sublette County: Muddy Creek.

U.S.A., Wyoming, Johnson County: Eastern Slope Big Horn Mountains: headwaters of Clear Creek and Crazy Woman River.

U.S.A., Wyoming, Fremont County: Continental Divide: Togwotee Pass: Brook's Lake.
43.7513° N, 110.0051° W; NAD 83, uncertainty 1 mi., Digital Map
White flowers. Phenology: flowering.

U.S.A., Wyoming, Sublette County: Kendall.
Bottom of shallow pond. Phenology: flowering & fruiting.
with Lois B. Payson

U.S.A., Wyoming, Sublette County: West slope of the Wind River Range: near Horseshoe Lake, 22 mi due E of Pinedale.
Annotated by C. L. Porter.

U.S.A., Wyoming, Teton County: Jackson Hole Wildlife Park: Pacific Creek.
Shallow pools near creek. Phenology: flowering & fruiting.
Annotated by C. L. Porter.

U.S.A., Wyoming, Carbon County: North Park on edge of Wyoming, Big Creek Park.
George E. Osterhout, 1115. 7/5/1896.

U.S.A., Wyoming, Fremont County: Continental Divide: Togwotee Pass: Brook's Lake.

U.S.A., Wyoming, Uinta County: Fort Bridger, Blacks Fork.
Annotated by Frank Swancara in 1957.

U.S.A., Wyoming, Teton County: Near Moran schoolhouse.
Submerged (except for flowers) in running water. Phenology: flowering & fruiting.
with Mildred S. Reed

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

U.S.A., Wyoming, Albany County: Laramie River, at Woods Landing.
George E. Osterhout, 5828. 8/9/1918.

U.S.A., Wyoming, Sublette County: Near the lower end of New Fork Lakes.
In ponds. Phenology: flowering & fruiting.
with Lois B. Payson

U.S.A., Wyoming, Teton County: Gros Ventre Mountains: Gros Ventre River.
Growing with Lemna minor and Typha sp.; in boggy area. Infrequent. Phenology: flowering & fruiting.

U.S.A., Colorado, Weld County: E of Cheyenne.

U.S.A., Wyoming, Teton County: Jackson Hole.
Margin of pond. Phenology: flowering & fruiting.
with Lois B. Payson

U.S.A., Wyoming, Albany County: On Nueces Ranch along Laramie River, ca 1/4 mi downstream from ranch cowpens, ca 25 mi SW of Wheatland,
In the river. Phenology: flowering & fruiting.

U.S.A., Wyoming, Teton County: Yellowstone National Park: Nez Perces Creek.
On flowing water. Phenology: flowering & fruiting.

U.S.A., Wyoming, Park County: Yellowstone National Park: Old Faithful, Firehole River.

U.S.A., Utah, Daggett County: North Slope Uinta Mountains: Ashley National Forest: Sheep Creek Park, ca 8.5 air mi SW of Manila; 1.4 mi W of junction of Forest roads 221/096.
Wet meadow, dense clay soils, hummocks, limestone bog. Phenology: flowering & fruiting.
with S. Goodrich

U.S.A., Utah, Daggett County: North Slope Uinta Mountains: Ashley National Forest: ca 14 air mi SW of Manila; on north side of Forest Road 001.
Aquatic, alpine moraine, knob and kettle topography, ponds and thick clays. Phenology: flowering & fruiting.

U.S.A., Wyoming, Natrona County: [location and coordinates withheld]
Along creek; limber pine and cottonwood common. Phenology: flowering & fruiting.

U.S.A., Colorado, Douglas County: East-central Colorado: Mosquito Range to Plains: Rampart Range: along West Creek and adjacent slopes to W, off Colo Hwy 67 ca 4.5 air mi SE of Deckers.
Along the banks of the creek. Phenology: vegetative only.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Gardner Peak/Crampton Mountain: on slopes, ridges and peaks and along Tallahassee Creek, off County Road 21A ca 15.2 air mi ENE of Canon City.
In the stream. Phenology: flowering & fruiting.

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Gribbles Park: in hills and flat grassland at W end of park, at Badger Creek off County Road 2, ca 14 air mi NE of Salida.
In the creek. Phenology: flowering & fruiting.

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Cals Fork Gulch: off Forest Road 187 or County Road 187 W along stream at head of gulch, ca 12 air mi SE of Buena Vista.
Along the muddy shores of a beaver pond. Phenology: flowering & fruiting.
with Irene Thien