: 1.21 $2024-03-29T08:39:47-7:003.235.186.149searchRMRM825114 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.38820Erwin F. Evert200172183U.S.A.WyomingHot SpringsAbsaroka Mountains: Shoshone National Forest: Twin Lakes near the head of Grass Creek, ca 45 mi NW of Thermopolis.2597Along shores in wet soil and shallow water with Carex utriculata and Eleocharis palustris. Phenology: vegetative only.RMRM738778 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.20854Erwin F. Evert1991617168U.S.A.IdahoFremontTarghee National Forest: Island Park Plateau: W of Forest Road 112 and E of unnamed lake, ca 18 mi N of Ashton.-111.405344.32391859Wet margins of lake with Ranunculus sceleratus, Eleocharis palustris, Alopecuris aequalis, and Salix geyeriana.RMRM788794 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.32323Erwin F. Evert1996727209U.S.A.WyomingTetonTeton Range: Grand Teton National Park: east side of Trapper Lake.-110.724343.83452109Shallow water with Carex rostrata, Eleocharis palustris, and Potamogeton gramineus. Phenology: vegetative only.RMRM31808 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.80D. T. MacDougal1898610161U.S.A.ArizonaCoconinoMormon Lake.-111.449134.90912195Phenology: flowering & fruiting.RMRM722782 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4450Kevin J. Taylor199789221U.S.A.ColoradoGunnisonNorthern Gunnison Basin: on southeast side of Snodgrass Mountain, ca 3.5 air mi N of Crested Butte.-106.971238.9229873170Wetlands (ponds, creeks, and seeps). Phenology: vegetative only.RM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.5454Margarette J. Lyon1994628179U.S.A.ColoradoMesaSan Miguel and Lower Dolores River Drainages: Uncompahgre Plateau: on Thimble Rock Point Road, 0.2-0.7 mi from Divide Road.-108.631638.74772500At stock pond. Phenology: fruiting.RMRM217967 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.5568C. L. Porter195081213U.S.A.WyomingFremontSouthern Wind River Mountains: Fiddlers Lake, SW of Lander.-108.882142.62982743Shallow water at edge of lake. Phenology: vegetative only.RMRM236936 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6324C. L. Porter1953714195U.S.A.WyomingCarbonSierra Madre Mountains: Battle Lake.-107.007141.15342814Submerged in clear, cold water on a rocky bottom. Phenology: vegetative only.RMRM236928 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6339C. L. Porter1953716197U.S.A.WyomingFremontSouthern Wind River Range: near Fiddlers Lake, W of Lander.-108.881842.63012743In ca 2 ft water, boggy lake. Phenology: vegetative only.RMRM236940 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6359C. L. Porter195384216U.S.A.WyomingTeton2 mi E of Moran.-110.554843.86642073In a shallow pond with Carex rostrata. Phenology: flowering & fruiting.RMRM237089 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6375C. L. Porter195385217U.S.A.WyomingTetonYellowstone National Park: near the South Entrance.-110.658644.13662073In a small pond. Phenology: vegetative only.RMRM237075 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6378C. L. Porter B. F. Miller195385217U.S.A.WyomingParkYellowstone National Park: Yellowstone River in Hayden Valley between Lake and Canyon.-110.485944.67752362In a sluggish backwater. Phenology: flowering.RMRM249469 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.7070C. L. Porter1956630182U.S.A.WyomingJohnsonBig Horn National Forest: east slope of Big Horn Range W of Buffalo near Sherd Lake.-107.006944.27052621In a small pond with muddy bottom. Phenology: flowering & fruiting.RMRM253820 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.7378C. L. Porter195782214U.S.A.WyomingAlbanyMedicine Bow Range: North Fork Little Laramie River ca 4 mi NW of Centennial.-106.164641.35092743Shallow water of beaver ponds. Phenology: vegetative only.RMRM263078 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.8236C. L. Porter Marjorie W. Porter1960627179U.S.A.WyomingWashakieBig Horn Range: head of Tensleep Canyon.-107.250544.15262378Small bog with sedges and Menyanthes. Phenology: vegetative only.RMRM263272 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.8421C. L. Porter Marjorie W. Porter1960722204U.S.A.WyomingFremontSouthern Wind River Range: east slope, at Louis Lake.-108.852442.59652682In boggy ponds. Phenology: flowering & fruiting.RMRM273241 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.9397C. L. Porter Marjorie W. Porter1963718199U.S.A.WyomingTetonGrand Teton National Park: near Moran.-110.583843.86732073Small sedge pond; in 2-4 ft of murky water. *elevation might need to be 6,800 ft* Phenology: flowering & fruiting.RMRM273254 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.9411C. L. Porter Marjorie W. Porter1963719200U.S.A.WyomingTetonGrand Teton National Park: Signal Mountain.-110.591943.85432073Pond in lodgepole pine zone; in shallow water with sedges. Phenology: flowering & fruiting.RMRM274906 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.9636C. L. Porter Marjorie W. Porter1964728210U.S.A.WyomingSubletteNorthern end Wind River Range: at the Green River Lakes.-109.856943.31182439In water of a swamp with rushes and sedges. Locally abundant. Phenology: fruiting.RMRM260475 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.13754Alan A. Beetle1958824236U.S.A.WyomingTetonYellowstone National Park: west end of Shoshone Lake.-110.665344.35832378Shallow water. Phenology: vegetative only.RMRM8619 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.2406Aven Nelson1896716198U.S.A.WyomingSheridanDome Lake.-107.303844.58512667Phenology: vegetative only.RMRM165290 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6061Aven Nelson Elias Nelson1899722203U.S.A.WyomingParkYellowstone National Park: Obsidian Creek.-110.727844.84682225In a pond. Phenology: flowering.RMRM20067 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6061Aven Nelson Elias Nelson1899722203U.S.A.WyomingParkYellowstone National Park: Obsidian Creek.-110.727844.84682225In a pond. Phenology: flowering.RMRM20066 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6557Aven Nelson Elias Nelson1899812224U.S.A.WyomingTetonJacksons Lake.-110.724344.05162042In a pond. Phenology: flowering.RMRM779197 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.2430Bonnie Heidel George Jones, John Proctor, Kathy Carsey200385217U.S.A.WyomingCarbonMedicine Bow Range: between Rock Creek and North Fork Rock Creek, ca 1.8 air mi NNW of Firebox Lake.-106.209441.46532923Submerged in largest of small lakes, less than 1 m depth, near peat margins; with Potamogeton pusilla, P. alpinus. Phenology: vegetative only.RMRM277183 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.23899aC. Leo Hitchcock196578189U.S.A.WyomingParkYellowstone National Park: 15 mi W of Cooke City.-110.124944.90682134Small lake. Sheaths of stipules open. 23899b P. illinoensis on same sheet Phenology: flowering.RMRM32220 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.902Elmer D. Merrill E. N. Wilcox1901720201U.S.A.WyomingTetonJacksons Hole: Leighs Lake.-110.724343.82012073Shallow water. Phenology: flowering & fruiting.RMRM609966 Potamogeton gramineus ? Potamogeton richardsoniiphysical specimenPotamogetonaceaePotamogetongramineusL.7624Erwin F. Evert1984821234U.S.A.WyomingParkNorthern Absarokas: Yellowstone National Park: west side of Sylvan Lake.-110.167844.47632560In shallow water. Phenology: flowering.RMRM165294 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.1774George E. Osterhout1898724205U.S.A.WyomingCarbonNorth Park on edge of Wyoming, S. A. Hiltons Ranch.-106.595741.009925912621Phenology: flowering & fruiting.RMRM104071 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.H. S. Conard1925828240U.S.A.WyomingParkYellowstone National Park: Roosevelt Camp: E of Yanceys.-110.430344.93581890Small pond. Phenology: vegetative only.RMRM209199 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.1497John F. Reed Mildred S. Reed1947817229U.S.A.WyomingTetonJackson Hole Wildlife Park: Elk Pasture.-110.548143.85482057Small pond. Phenology: vegetative only.RMUSFS400072 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.3577Leila M. Shultz John S. Shultz1979719200U.S.A.WyomingLincolnBridger National Forest: Water Dog Lake, below Grayback Ridge; 2 mi from McCain Guard Station.-110.706843.13312219Shore of lake with Poentilla anserina, Eleocharis macrostchya. Phenology: fruiting.RMRM532910 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6123Richard W. Scott1987715196U.S.A.WyomingFremontAlong the Little Popo Agie River.-108.844242.61532673Small montane pond. Phenology: vegetative only.RMRM541093 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6583Richard W. Scott198872184U.S.A.WyomingFremontNear Worthen Meadow Reservoir; on loop road.-108.902842.70332697Roadside pond. Phenology: vegetative only.RMRM541095 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6583Richard W. Scott198872184U.S.A.WyomingFremontNear Worthen Meadow Reservoir; on loop road.-108.902842.70332697Roadside pond. Phenology: vegetative only.RMRM329075 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.3648Robert D. Dorn1980820233U.S.A.WyomingParkYellowstone National Park: pond on W side of outlet of Yellowstone Lake.-110.3874744.56332378Pond with Subularia, Myriophyllum. Phenology: vegetative only.RMRM357942 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4310Robert D. Dorn198584216U.S.A.WyomingTetonYellowstone National Park: outlet of Lewis Lake.-110.630344.27332378Shallow pond with Carex. Phenology: vegetative only.RMRM600469 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6445Robert D. Dorn1995814226U.S.A.WyomingHot SpringsTwin Lakes.-109.00343.86552652Floating in pond with Carex and Ranunculus. Phenology: fruiting.RMRM600369 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6639Robert D. Dorn199593246U.S.A.WyomingUinta17 mi S of Mountain View.-110.362341.00482804Floating in shallow pond with Ranunculus and Nuphar. Phenology: vegetative only.RMRM742721 Potamogeton gramineus Potamogeton ?physical specimenPotamogetonaceaePotamogetongramineusL.25962Sherel Goodrich1998729210U.S.A.WyomingUintaWasatch-Cashe National Forest: Uinta Mountains, 0.2 mi W of Meeks Cabin Reservoir.2652Aquatic in a small pond.RMRM383894 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4374Robert D. Dorn1986713194U.S.A.WyomingCrook-104.382944.63951432Shallow pond with Rorippa, Carex. Phenology: flowering & fruiting.RMRMRS Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.M. Lott L. Reetz, and E. Force1965710191U.S.A.ArizonaCoconinoNear Woods Canyon Lake: Lake #1.-110.942834.338992317Phenology: flowering.RMRM735330 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.76462Ronald L. Hartman2002814226U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Cerro San Luis, from road around southern base.-106.52078335.9494172629Stream and disturbed areas. Phenology: fruiting.RMRM709851 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.133Cheryl Mayer200087220U.S.A.South DakotaCusterBlack Hills: Black Elk Wilderness: Trail # 7 along tributary to Grizzly Bear Creek, ca 8.0 air mi NE of Custer.-103.479743.85211585Ponderosa pine and bur oak association; in water in creek. Phenology: fruiting.RMRM770536 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.61444B. E. Nelson200479191U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: along East Fork Jemez River, ca 3/4 - 1 air mi E of NM Hwy 4, ca 8 air mi NE of Jemez Springs; ca 15 air mi WSW of Los Alamos.-106.576835.82892423In the river. Phenology: vegetative only.RMRM346143 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.344Stephen Van Sickle1982814226U.S.A.South DakotaLymanFate Dam.-100.004943.9371538Floating leaves in 1 m water. Phenology: vegetative only.RMRM105160 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.16954W. H. Over1925824236U.S.A.South DakotaFall RiverCascade Creek.-103.557143.3371036Phenology: vegetative only.RMRM81496 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.56Albert Duprey1912625177U.S.A.ColoradoSan MiguelIron Springs Mesa.In shallow pond. Phenology: flowering & fruiting.RMRM165293 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.427Carl F. Baker1901712193U.S.A.ColoradoMontroseRegion of the Gunnison Watershed: Cerro Summit.Phenology: flowering & fruiting.RMRM236960 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6316C. L. Porter1953710191U.S.A.ColoradoJacksonVicinity of Big Creek Lakes.2621Ponds 2-3 ft deep with Nuphar. Phenology: flowering & fruiting.RMRM236915 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6435C. L. Porter1953911254U.S.A.ColoradoJacksonRoutt National Forest: near Big Creek Lakes.2621Phenology: flowering & fruiting.RMRM241862 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6548C. L. Porter1954715196U.S.A.ColoradoMesaGrand Mesa: above Mesa Lakes.3079Small ponds with Nuphar. Phenology: flowering & fruiting.RMRM74523 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.56Edwin B. Payson1912625177U.S.A.ColoradoSan MiguelIron Springs Mesa.2591In shallow pond. Phenology: flowering & fruiting.RMRM75990 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.9411Francis Ramaley1912817230U.S.A.ColoradoGilpinPine Glade Lake: i mi E of Tolland.Phenology: flowering & fruiting.RMRM43011 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4978Frank Tweedy190210274U.S.A.ColoradoBoulderNear Boulder.15241829Plains and foothills. Phenology: fruiting.RMRM165291 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.206George E. Osterhout1893729210U.S.A.ColoradoLarimerChambers Lake.Phenology: flowering & fruiting.RMRM580344 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.2067JoAnn W. Flock623175U.S.A.ColoradoRio BlancoWhite River National Forest: Marvine Creek Campground area.4025002621Pond. Phenology: flowering & fruiting.RMRM526442 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.1626Patricia P. Douglas1987714195U.S.A.ColoradoConejosDry Lake: 3 mi NE of Black Mountain; 4 mi SW of S end of La Jara Reservoir.-105.451140.57563000Pond with Salix and Carex aquatilus at margin. Phenology: flowering & fruiting.RMRM296749 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.2767Ronald L. Hartman1968822235U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: Fowler Mesa.-105.05836.392092774Common in shallow pond along jeep trail. Phenology: flowering & fruiting.RMRM315035 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.15139William A. Weber197584216U.S.A.ColoradoBoulderAlong Baseline Road; just W of Baseline Lake; Boulder Valley.1650Floating in irrigation ditch. Phenology: flowering & fruiting.RMRM81416 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.10198W. W. Robbins1913717198U.S.A.ColoradoGilpinTolland.Phenology: flowering & fruiting.RM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.11080Stuart Markow1993724205U.S.A.IdahoFremontTarghee National Forest: Island Park Plateau: E side of Warm River, 100 yds N of Union Pacific Railroad bed, ca 20 air mi NE of Ashton.-111.304644.32391890Plants aquatic, in sedge/willow complex, with Carex vesicaria, Carex lanuginosa, Carex buxbaumii, Calamagrostis inexpansa, Salix geyeriana, Salix planifolia, Potentilla palustris, and Juncus ensifolius.RM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.7628Jean Wood K. Ahlenslager, L. Swartz and J. Nisbet1996813226U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Davis Lake, ca 11 air mi NW of Kettle Falls.-118.230448.73591371Floating mat and immersed water plants. Phenology: flowering.RMRM351343 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4874bB. E. Nelson197989221U.S.A.WyomingBig HornBig Horn Mountains: at Lower Paint Rock Lake, ca 33.5 air mi ESE of Greybull; ca 15 air mi NE of Hyattville.-107.375344.39252804In the lake. 4874a P. alpinus on same sheet Phenology: vegetative only.RMRM351348 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.1032Gael Fonken1980824237U.S.A.WyomingBig HornBig Horn Mountains: Lily Lake, ca 6 air mi WSW of Florence Pass, ca 21 air mi NNE of Ten Sleep.-107.2947244.31942910On mud hummocks at edge of lake. Phenology: vegetative only.RMRM385333 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.5100June Haines Georgia Haines1985727208U.S.A.WyomingFremontSoutheast 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.-109.545843.43452256In creek where creek empties into lake. Phenology: vegetative only.RMRM560933 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4343Robert S. Kirkpatrick1984718200U.S.A.WyomingFremontAbsaroka 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.-109.646643.691125602682Locustrine, in a cow pond. Phenology: vegetative only.RMRM560934 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4846Robert S. Kirkpatrick1984724206U.S.A.WyomingHot SpringsAbsaroka Mountains: ca 20 air mi SSW of Meeteetse; Twin Lakes (also known as Gooseberry Lakes).-109.00343.86552591Lacustrine. Phenology: vegetative only.RMRM588554 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.27007Ronald L. Hartman1990712193U.S.A.WyomingTetonWest Slope Wind River Range: Fish Creek/Moccasin Basin Area, Squaw Creek Road from North Fork Fish Creek to Open Fork Creek.-110.120843.631124392530Sagebrush grassland. Phenology: flowering & fruiting.RMRM581551 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.11721Walter Fertig Jonathan Hughes1991819231U.S.A.WyomingSubletteWest Slope Wind River Range: Adjacent to Boulter Lake Trail, ca 1.75 mi NNW of Mud Lake, ca 31 air mi ESE of Pinedale.-109.296942.69942896Completely dry, mud-lined shallow pond adjacent to trail and granite rock outcrops in open meadow. Phenology: flowering & fruiting.RMRM588553 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.5092Walter Fertig199082214U.S.A.WyomingSubletteWest Slope Wind River Range: north shore of New Fork Lakes, ca 17 air mi N of Pinedale.-109.947843.10312384Submerged aquatics growing in Lake. Phenology: vegetative only.RMRM588552 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.5928Walter Fertig1990811223U.S.A.WyomingTetonWest Slope Wind River Range: Ponds E of Mosquito Lake, just over county line, ca 37 air mi NNW of Pinedale.-110.053943.39942707Submergent or emergent aquatic in pond with muddy bottom. Phenology: vegetative only.RMRM581552 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.9511Walter Fertig1991715196U.S.A.WyomingSubletteWest Slope Wind River Range: Meeks Lake, ca 1 1/4 air mi N of Big Sandy Campground, ca 30 air mi ESE of Pinedale.-109.277242.69942835Aquatic plants in shallow water on east shore of lake. Soil muddy-sand. Phenology: vegetative only.RMRM600369 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6639Robert D. Dorn199593246U.S.A.WyomingUinta17 mi S of Mountain View.-110.362341.00482804Shallow pond with Potamogeton and Ranunculus. Phenology: vegetative only.RMRM383894 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4374Robert D. Dorn1986713194U.S.A.WyomingCrook-104.382944.63951432Shallow pond with Rorippa, Carex. Phenology: flowering & fruiting.RMRM12292 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.George E. Osterhout1898724205U.S.A.WyomingBig Creek Park, Hiltons Ranch.-106.595741.0243Phenology: flowering & fruiting.RMRM905298 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4653Ben Legler2007619170U.S.A.New MexicoColfaxVermejo 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.-105.037536.992747Shallow pond with surface nearly covered in Potamogeton, bottom dominated by Myriophyllum, edges ringed by Eleocharis; muddy bottom. Abundant; leaves reddish-tinged, both floating and submerged; inflorescences emergent. Photographed. Phenology: flowering.RMRM905297 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.4654Ben Legler2007619170U.S.A.New MexicoColfaxVermejo 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.-105.037536.992747Shallow pond with surface nearly covered in Potamogeton, bottom dominated by Myriophyllum, edges ringed by Eleocharis; muddy bottom. Abundant, covering most of the pond surface; leaves green, both floating and submerged; inflorescences emergent. Photographed. Phenology: flowering.RMRM905296 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.7698Ben Legler2007815227U.S.A.New MexicoTaosVermejo Park Ranch: Culebra Range: shores of Beaver Lake; 3.34 air mi NE of summit of Big Costilla Peak.-105.272777836.934444443066Small, shallow, man-made lakes with Elodea canadensis and Potamogeton gramineus, shores ringed by Glyceria borealis and Carex spp. Leaves dimorphic, both floating and submerged; plants forming large patches in lake shallows; common. Photographed. Phenology: flowering & fruiting.RMRM905295 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.10874Ben Legler2008818231U.S.A.New MexicoTaosVermejo 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.-105.26733436.9123042967Small manmade lake with gravelly bottom and clear water; rimmed by Carex and Glyceria grandis; with Elodea canadensis and Potamogeton gramineus in shallows. Leaves both floating and submerged; local at north end of lake in 1-2 meter deep water. Photographed. Specimen GPS: 36.912178, -105.267509. Phenology: flowering & fruiting.RMRM924635 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.86264Ronald L. Hartman Jack S. Hartman2007721202U.S.A.WyomingCarbonMedicine Bow Mountains: Medicine Bow National Forest: vicinity of Long Lake, ca 10.5 air mi SW of Arlington interchange at I-80.-106.368141.50482751Aquatic and lake shore. Phenology: flowering.RMRM277092 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.23984C. Leo Hitchcock1965711192U.S.A.MontanaLake0.2 mi SE of Nine Pipes Reservoir.Large pot-hole in about 1 ft of water. Phenology: flowering & fruiting.RMUSFS411930 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.1431James C. Whitham1933710191U.S.A.MontanaGallatinGallatin National Forest: Hebgen Lake at Watkins Creek.2042Flat ground; black muck in swamp. Common. Phenology: fruiting.RMRM123835 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.H. M. Jennison19241024298U.S.A.MontanaLakeFlathead Lake: Woods Bay.Phenology: flowering & fruiting.RMRM165292 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.457L. M. Umbach1903720201U.S.A.MontanaGlacierMidvale (now East Glacier Park).Ponds. Phenology: flowering & fruiting.RMRM123027 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.H. M. Jennison19241024298U.S.A.MontanaLakeFlathead Lake: Woods Bay.Phenology: flowering & fruiting.RMRM370696 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.1144Richard J. Naskali1973728209U.S.A.MontanaFlatheadLake Five.-114.01666748.4666671006Lake has abundant macrophytes; substrate is muck; water total alkalinity = 104.0. There is a carpet of Chara 24-35" tall on the bottom in water 15-20' deep; also fairly common is Potamogeton praelongus (growing in water 15-20' deep), P. natans, Myriophyllum spicatum, Polygonum amphibium, Nuphar variegatum, Potamogeton berchtoldii. Phenology: flowering.RMRM202756 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.12878C. Leo Hitchcock C. V. Muhlick1945727208U.S.A.MontanaBeaverheadAnaconda Range: small pond 1 mi SE of Pintlar Lake.In about 1 ft of water near pond. Phenology: vegetative only.RMRM89655 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.R. S. Williams1892824237U.S.A.MontanaFlatheadWhitefish Lake, Glacier National Park.Locality is contradictory: unclear whether specimen was collected at Whitefish Lake or the National Park. Phenology: flowering & fruiting.RMRM218866 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.17783C. Leo Hitchcock1948627179U.S.A.MontanaLake1 mi S of Charlo.Shallow pond. Phenology: flowering.RMRM69965 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.W. E. Booth1954824236U.S.A.MontanaGallatinWest Yellowstone: 5 mi N on Madison River.Submerged; abundant. Phenology: flowering.RMRM604894 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.6832Neil Hotchkiss194296249U.S.A.North DakotaWilliamsCa 2 mi W of Wildrose.Deep ditch along road across small pothole. Phenology: fruiting.RMRM39110 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.J. Lunell1900817229U.S.A.North DakotaBensonLeeds.Pond. Phenology: flowering & fruiting.RMRM92476 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.13816W. H. Over1921531151U.S.A.South DakotaSanbornSoughs. Phenology: flowering.RMRM68164 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.David Griffiths Schlosser1892913257U.S.A.South DakotaLakeNear Spring Lake.Pond. Phenology: fruiting.RMRM86837 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.27L. B. Case19076152U.S.A.South DakotaHandMiller.Phenology: flowering & fruiting.RMRM521048 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.41Kris Sletten1983614165U.S.A.NebraskaBrownCalamus River.Submerged in shallow water. Phenology: flowering.RMRM620207 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.s.n.Ralph H. Imler1938728209U.S.A.NebraskaGardenCrescent Lake Refuge.1158Phenology: vegetative only.RMRM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.11646Lori E. Brummer Gay Austin201298252U.S.A.ColoradoMesaGrand Mesa: Grand Mesa National Forest: Kannah Creek headwaters area, "Wilson's Fen", ca 2/3 air mi NE of radio tower, ca 30 air mi E of Grand Junction.-108.003839.0493304Growing underwater in pond in subalpine fen. Phenology: fruiting.RMRM909853 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.3703Bonnie Heidel2012725207U.S.A.WyomingFremontEast Slope Wind River Mountains: Beauty Lake, 0.5 mi SE of Black Mountain, ca 16 mi W of Lander.2797Shallow standing water of small lake, sandy bottom, with Myriophyllum sibiricum. Phenology: vegetative only.RMRM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.8056Joshua J. Irwin2011817229U.S.AIdahoCusterChallis National Forest: Southern Salmon River Mountains: unnamed lake 6770 between Knapp and Asher creeks, 14.7 air mi NW of Stanley.-115.1104144.390482064>150 plants estimated in hydric fine textured soil within a wetland area, no slope, granodiorite geology. Phenology: flowering & fruiting.RMRM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.7967Emma E. Freeland Kevin Suzuki201386218U.S.A.MontanaMadisonTobacco Root Mountains: South Meadow Creek Drainage: Leonard Creek and associated potholes, ca 2 air mi ENE of South Meadow Creek Lake, ca 10 air mi NW of Ennis.-111.874745.469422012243Floating mat of vegetation in a sphagnum fen. Phenology: fruiting.RMRM915200 Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.3892Bonnie Heidel Kate Dwire2013728209U.S.A.WyomingParkBeartooth Range: 3/4 mi SE of Clay Butte Lookout, S of U.S. Hwy 212, ca 40 mi NW of Cody.2737Shallow pools filled with marl; with Carex utriculata, Menyanthes trifoliata, and Utricularia minor. Phenology: vegetative only.RM Potamogeton gramineusphysical specimenPotamogetonaceaePotamogetongramineusL.7614C. H. Refsdal1995822234U.S.A.UtahDaggettNorth Slope Uinta Mountains: Ashley National Forest: ca 14 air mi SW of Manila; on north side of Forest Road 001.-109.978440.879829572993Alpine moraine, knob and kettle topography, ponds and thick clays. Phenology: fruiting.36003,1,0true