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RM RM 619597 Lemna trisulca physical specimen Araceae Lemna trisulca L. 19531 Erwin F. Evert 1990 7 1 182 U.S.A. Montana Gallatin Madison Range: Gallatin National Forest: Axolotl Lake, ca 2 mi E of Potamogeton Park; ca 28 mi NNW of West Yellowstone. -111.3422 44.9203 2317 Submerged in lake outlet. Phenology: vegetative only. RM RM 610811 Lemna trisulca physical specimen Araceae Lemna trisulca L. 26304 Erwin F. Evert 1993 8 1 213 U.S.A. Montana Gallatin 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. -111.3656 44.8608 1967 Beaver ponds and marsh with Carex rostrata, Geum rivale, Eleocharis acicularis, and Salix geyeriana. Phenology: vegetative only. RM RM Lemna trisulca physical specimen Araceae Lemna trisulca L. 62500 B. E. Nelson 2004 8 15 228 U.S.A. Colorado Archuleta Eastern San Juan Mountains: Opal Lake Trailhead and along Opal Lake Trail 564, between Rio Blanco and Flattop Mountain, ca 14.5-15 air mi ESE of Pagosa Springs. -106.7624 37.2034 2658 2804 Running water of the stream. Phenology: vegetative only. RM RM Lemna trisulca physical specimen Araceae Lemna trisulca L. 49920 Ronald L. Hartman 1994 8 22 234 U.S.A. Wyoming Teton [location and coordinates withheld] 1829 Along waterway and upslope. Phenology: vegetative only. RM RM 281091 Lemna trisulca physical specimen Araceae Lemna trisulca L. 10331 C. L. Porter Marjorie W. Porter 1966 8 11 223 U.S.A. Wyoming Fremont Wind River Range: W of Dubois and 3 mi E of Togwotee Pass. -110.0307 43.7265 1 2743 In a small sedge pond in spruce-fir zone. Phenology: vegetative only. RM RM 237073 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6368 C. L. Porter 1953 8 4 216 U.S.A. Wyoming Teton Buffalo Meadows between Moran and Turpin Meadow. -110.5424 43.8611 2134 In a small pond, [shallow stagnant water]. Phenology: vegetative only. RM RM 241910 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6500 C. L. Porter 1954 7 1 182 U.S.A. Wyoming Lincoln North end of the Star Valley, Salt River, near Thayne. -111.0172 42.9245 2 1859 Small roadside ponds, plants rather infrequent. [Salt River] Phenology: vegetative only. RM RM 260194 Lemna trisulca physical specimen Araceae Lemna trisulca L. 7925 C. L. Porter Marjorie W. Porter 1959 7 21 202 U.S.A. Wyoming Albany Medicine Bow Range: North Fork of Little Laramie River. -106.1663 41.3519 1 2743 Abundant in a beaver pond. Phenology: vegetative only. RM RM 28743 Lemna trisulca physical specimen Araceae Lemna trisulca L. 8528 C. L. Porter Marjorie W. Porter and Judith Kertesz 1960 10 10 284 U.S.A. Wyoming Albany Medicine Bow Range: in a pond along North Fork Little Laramie River on the Sand Lake Road. -106.1665 41.3521 1 2743 Abundant; fruiting plants floating and pale green, sterile ones submerged in 1-3 ft clear water. Phenology: flowering & fruiting. RM RM 70778 Lemna trisulca physical specimen Araceae Lemna trisulca L. 8528 C. L. Porter Marjorie W. Porter and Judith Kertesz 1960 10 10 284 U.S.A. Wyoming Albany Medicine Bow Range: in a pond along North Fork Little Laramie River on the Sand Lake Road. -106.1665 41.3521 1 2743 In a pond. Phenology: flowering. RM RM 209282 Lemna trisulca physical specimen Araceae Lemna trisulca L. 4847 Alan A. Beetle 1947 7 18 199 U.S.A. Wyoming Carbon Outflow of Little Snake River: near Slater. -107.4125 41.0115 2 1951 Phenology: vegetative only. RM RM 8644 Lemna trisulca physical specimen Araceae Lemna trisulca L. 2284 Aven Nelson 1896 7 13 195 U.S.A. Wyoming Sheridan Ranchester. -107.1632 44.9032 1 1143 Phenology: vegetative only. RM RM 20526 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6425a Aven Nelson Elias Nelson 1899 8 12 224 U.S.A. Wyoming Teton Yellowstone National Park: Snake River. -110.6688 44.0973 1 2073 2103 In a pond. 6425b L. minor on same sheet, *Field book Phenology: vegetative only. RM RM 20524 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6929 Aven Nelson Elias Nelson 1899 7 14 195 U.S.A. Wyoming Park Yellowstone National Park: Trout Lake. -110.1249 44.9068 1 2134 Submerged and also floating. Phenology: vegetative only. RM RM 79374 Lemna trisulca physical specimen Araceae Lemna trisulca L. 9660 Aven Nelson 1912 8 214 U.S.A. Wyoming Carbon Saratoga. -106.7939 41.4471 1 2073 Warm ponds. Phenology: vegetative only. RM RM 779173 Lemna trisulca physical specimen Araceae Lemna trisulca L. 2409 Bonnie Heidel 2003 7 19 200 U.S.A. Wyoming Carbon Medicine Bow Range, north side of Firebox Lake. 2926 Submerged at bottom of shallow lake. Occurs with Chara spp. Phenology: vegetative only. RM RM 106807 Lemna trisulca physical specimen Araceae Lemna trisulca L. s.n.a Ellsworth Bethel 1919 9 7 250 U.S.A. Wyoming Carbon Baggs. -107.6586 41.0405 2 1905 In ponds near the river. s.n.b L. minor and s.n.c Spirodela polyrhiza on same sheet Phenology: vegetative only. RM RM 341451 Lemna trisulca physical specimen Araceae Lemna trisulca L. 3104 Erwin F. Evert 1981 7 11 192 U.S.A. Wyoming Park Absaroka Mountains: North Fork Shoshone River Drainage: second lake NE of Mooncrest Ranch, head of Rattlesnake Creek. -109.4119 44.6441 1 2469 In the lake. Phenology: vegetative only. RM RM 101442 Lemna trisulca physical specimen Araceae Lemna trisulca L. 1238 H. S. Conard 1924 6 28 180 U.S.A. Wyoming Park Yellowstone National Park: Lost Lake, Camp Roosevelt. -110.4303 44.9068 1 2073 Abundant. Phenology: vegetative only. RM RM 208819 Lemna trisulca physical specimen Araceae Lemna trisulca L. 1193b John F. Reed 1947 8 11 223 U.S.A. Wyoming Teton Jackson Hole: near Moose. -110.7319 43.6564 1 1951 In small pond. 1193a L. minor and 1193c Spirodela polyrhiza on same sheet Phenology: vegetative only. RM RM 211338 Lemna trisulca physical specimen Araceae Lemna trisulca L. 2543 John F. Reed Mildred S. Reed 1948 9 7 251 U.S.A. Wyoming Teton Jackson Hole Wildlife Park: Snake River near Moran. -110.5879 43.8582 1 2057 Beaver ponds. Phenology: vegetative only. RM RM 260414 Lemna trisulca physical specimen Araceae Lemna trisulca L. 39 V. June Wetherell 1959 6 10 161 U.S.A. Wyoming Teton Grand Teton National Park: Third Creek, near Swan Lake. -110.6212 43.881 2073 In water 2-3 ft deep. Phenology: vegetative only. RM RM 579981 Lemna trisulca physical specimen Araceae Lemna trisulca L. 13229 Walter Fertig 1992 7 29 211 U.S.A. Wyoming Lincoln Northern Wyoming Range: southeast shore of Bailey Lake, ca 14 air mi E of Alpine. -110.746 43.1765 1 2225 Submerged aquatic rooted to muddy bottom. Phenology: vegetative only. RM RM 703392 Lemna trisulca physical specimen Araceae Lemna trisulca L. 18471 Walter Fertig Wyoming Native Plant Society 1998 8 1 213 U.S.A. Wyoming Sublette West Slope Wind River Range: Kendall Warm Springs, ca 30 air mi NNW of Pinedale on the east bank of the Green River. -110.0189 43.2852 1 2378 Cold spring on hill north of warm springs. Floating aquatic in cold water spring. Phenology: fruiting. RM RM 703326 Lemna trisulca physical specimen Araceae Lemna trisulca L. 19016 Walter Fertig Laura Welp 1999 9 11 254 U.S.A. Wyoming Albany Medicine Bow Range: reservoir at Chimney Park Boy Scout Camp, ca 2.4 mi E of Foxpark and 4 air mi N of Colorado. -106.1 41.067 1 2731 South bank of reservoir in shallow water (ca 2 inches deep) on muddy soil at edge of Carex rostrata marsh. Phenology: flowering & fruiting. RM RM 839148 Lemna trisulca physical specimen Araceae Lemna trisulca L. 3819 David Scott Tacheeni Scott 2007 6 22 173 U.S.A. Wyoming Teton Bridger-Teton National Forest: Teton Wilderness: near Gravel Creek, ca 13 air mi NE of Moran; ca 30 air mi NE of Moose. -110.3772 44.0022 2268 Floating in montane pond. Phenology: vegetative only. RM RM 839147 Lemna trisulca physical specimen Araceae Lemna trisulca L. 4289 David Scott Tacheeni Scott 2007 7 3 184 U.S.A. Wyoming Teton Bridger-Teton National Forest: Teton Wilderness: near North Fork Rodent Creek, ca 18 air mi N of Moran; ca 32 air mi NNE of Moose. -110.524 44.0951 2481 Moist swale and pond in mixed conifer forest. Phenology: vegetative only. RM RM 904748 Lemna trisulca physical specimen Araceae Lemna trisulca L. 4849 David Scott Mike Straw 2007 7 18 199 U.S.A. Wyoming Teton Bridger-Teton National Forest: Teton Wilderness: near Wildcat Peak, ca 13 air mi N of Moran; ca 27 air mi NNE of Moose. -110.53 44.0241 2536 Floating on surface of montane pond. Phenology: vegetative only. RM RM 346226 Lemna trisulca physical specimen Araceae Lemna trisulca L. 7925 Gary E. Larson 1982 7 15 196 U.S.A. South Dakota Bennett LaCreek National Wildlife Refuge. -101.5313 43.0997 1 920 Submerged in shallow water beneath dense canopy of Phragmites australis. Phenology: vegetative only. RM RM 241906 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6561 C. L. Porter 1954 7 16 197 U.S.A. Colorado Moffat Yampa River: Craig. 1859 Abundant in ponds along river. Phenology: vegetative only. RM RM 149777 Lemna trisulca physical specimen Araceae Lemna trisulca L. 5335 C. L. Shear 1898 8 29 241 U.S.A. Colorado Grand Carleton Lake. Phenology: vegetative only. RM USFS 438619 Lemna trisulca physical specimen Araceae Lemna trisulca L. 163 E. R. Ware 1932 9 6 250 U.S.A. Colorado Garfield White River National Forest: Trapper's Lake. -107.2305 39.9933 1 2957 Very abundant in lake water in lake bed muck. Phenology: vegetative only. RM RM 143996 Lemna trisulca physical specimen Araceae Lemna trisulca L. 5473 Frederick J. Hermann 1933 7 30 211 U.S.A. Colorado Garfield Trappers' Lake. 2896 Shallow water, edge of lake. Phenology: vegetative only. RM RM 32575 Lemna trisulca physical specimen Araceae Lemna trisulca L. 549 H. N. Wheeler 1898 U.S.A. Colorado Gunnison Sapinero. Phenology: vegetative only. RM RM 580547 Lemna trisulca physical specimen Araceae Lemna trisulca L. 3018 JoAnn W. Flock 1989 6 29 180 U.S.A. Colorado Rio Blanco White River National Forest: Marvine Creek Campground area. -28 40 8 2500 2621 Pond. Phenology: vegetative only. RM RM 157971 Lemna trisulca physical specimen Araceae Lemna trisulca L. 1516 Leslie N. Goodding 1903 7 10 191 U.S.A. Colorado Larimer "The Bluffs, Spicer. Alpine lakes. Phenology: vegetative only. RM RM 51659 Lemna trisulca physical specimen Araceae Lemna trisulca L. 1516 Leslie N. Goodding 1903 7 10 191 U.S.A. Colorado Larimer "The Bluffs, Spicer. Alpine lakes. Phenology: vegetative only. RM Lemna trisulca physical specimen Araceae Lemna trisulca L. 1968 James P. Vanderhorst 1990 8 26 238 U.S.A. Colorado Garfield Flat Tops/White River Plateau: Flat Tops Wilderness: Trappers Lake, ca 29 air mi NNE of Glenwood Springs. -107.2305 39.9788 1 2926 Aquatic plants on muddy lake margins. RM Lemna trisulca physical specimen Araceae Lemna trisulca L. 1975b James P. Vanderhorst 1990 8 27 239 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Sterry Lake, ca 16 air mi SE of Meeker. -107.6068 39.9206 2621 Muddy, shallow lake. RM RM Lemna trisulca physical specimen Araceae Lemna trisulca L. 14742 B. E. Nelson Neil Snow 1987 8 8 220 U.S.A. Wyoming Teton Southwestern Absarokas: Gravel Lake, ca 7 air mi S of Yellowstone National Park, ca 42.3 air mi NNE of Jackson. -110.3642 44.0242 2439 In the lake. RM RM 560068 Lemna trisulca physical specimen Araceae Lemna trisulca L. 4259 Robert S. Kirkpatrick 1984 7 18 200 U.S.A. Wyoming Fremont 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. -109.6466 43.6911 3 2560 2682 Riparian, montane - subalpine; wet, closed areas in and around springs, bogs and ponds. Phenology: vegetative only. RM RM 560067 Lemna trisulca physical specimen Araceae Lemna trisulca L. 4468 Robert S. Kirkpatrick 1984 7 20 202 U.S.A. Wyoming Fremont Absaroka Mountains: ca 9 air mi N of Dubois, ponds ca 0.5 mi SW of Horse Creek Ranger Station. -109.6395 43.6626 2378 Locustrine. Phenology: vegetative only. RM RM Lemna trisulca physical specimen Araceae Lemna trisulca L. 22845 Ronald L. Hartman Neil Snow 1987 6 20 171 U.S.A. Wyoming Fremont Southwestern Absarokas: Forest Service road #513, 10-11 air mi ESE of Togwotee Pass. -109.8622 43.7053 2 2469 In pond. RM RM 626795 Lemna trisulca physical specimen Araceae Lemna trisulca L. 49918 Ronald L. Hartman 1994 8 22 234 U.S.A. Wyoming Teton [location and coordinates withheld] 1829 Along waterway and upslope. Phenology: vegetative only. RM RM 642724 Lemna trisulca physical specimen Araceae Lemna trisulca L. 3490 Thomas Cramer 1994 8 10 222 U.S.A. Wyoming Sublette Green River Basin: South Rim, ca 8 air mi NW of Warren Bridge. -110.2244 43.1036 2 2256 2591 Douglas fir and lodgepole pine forest hillside, ridgetop meadows, and bottom sagebrush wetlands. Phenology: vegetative only. RM RM 378013 Lemna trisulca physical specimen Araceae Lemna trisulca L. 4637 Hollis Marriott Dennis Horning 1983 7 16 197 U.S.A. Wyoming Crook Black Hills: Bear Lodge Mountains, Cook Lake; ca 7.2 air mi SSE of Alva. -104.4072 44.5958 1 1448 Floating just below surface in shallow water. Phenology: vegetative only. RM RM 378012 Lemna trisulca physical specimen Araceae Lemna trisulca L. 5637 Hollis Marriott 1983 8 22 234 U.S.A. Wyoming Crook Black Hills: Bear Lodge Mountains: headwaters of Lame Jones Creek, ca 7 air mi S of Alva. -104.4443 44.5981 2 1493 Wet meadows and old beaver ponds, in water. Phenology: vegetative only. RM RM 378011 Lemna trisulca physical specimen Araceae Lemna trisulca L. 16069 Ronald L. Hartman 1983 7 13 194 U.S.A. Wyoming Crook Black Hills: Geis Springs and vicinity, ca 5 air mi E of Alva. -104.3464 44.68444 1 1432 Ponds and pond margins and adjacent oak woodlands and prairies; pond. Phenology: vegetative only. RM RM 378010 Lemna trisulca physical specimen Araceae Lemna trisulca L. 16567 Ronald L. Hartman 1983 7 18 199 U.S.A. Wyoming Crook Black Hills: Oak Creek, ca 7.5 air mi NW of Aladdin. -104.2658 44.7153 1 1219 Stream drainage and roadside; stream. Phenology: vegetative only. RM USFS 869835 Lemna trisulca physical specimen Araceae Lemna trisulca L. 85959 Ronald L. Hartman 2007 6 18 169 U.S.A. Montana Park Absaroka Range: Gallatin National Forest: West Boulder Creek Trailhead to 1.5 mi into forest, ca 15 air mi SE of Livingston. -110.3076 45.5468 1692 1730 Coniferous forest and ponds. Phenology: vegetative only. RM USFS 869781 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6844 Emily Elliott Brian Elliott 2008 8 2 215 U.S.A. Montana Park Absaroka Range: Gallatin National Forest: from West Boulder Trailhead, along trail and West Boulder River to West Boulder Meadows, ca 27 air mi SW of Big Timber. -110.3139 45.5385 1737 Kettle pond. Phenology: vegetative only. RM RM 620141 Lemna trisulca physical specimen Araceae Lemna trisulca L. 22 Neil Hotchkiss 1942 7 25 206 U.S.A. North Dakota Ward Des Lacs National Wildlife Refuge: north end Unit 4A, 1.5 mi SE of Kenmare. Shallow water. Phenology: vegetative only. RM RM 226575 Lemna trisulca physical specimen Araceae Lemna trisulca L. s.n. Harry Hapeman 1892 5 29 150 U.S.A. Nebraska Kearney Newark. Phenology: vegetative only. RM RM 241776 Lemna trisulca physical specimen Araceae Lemna trisulca L. 6457 C. L. Porter 1954 6 16 167 U.S.A. Nebraska Cherry Ca 30 mi S of Valentine. 853 Free-floating in roadside ditches. Phenology: vegetative only. RM RM 394951 Lemna trisulca physical specimen Araceae Lemna trisulca L. 9010 Klaus H. Lackschewitz 1979 7 6 187 U.S.A. Montana Madison Above the overflow of the largest of Axolotl Lakes. In lake, in mass of wind-driven aquatic vegetation. Phenology: vegetative only. RM RM 395150 Lemna trisulca physical specimen Araceae Lemna trisulca L. 9010 Klaus H. Lackschewitz 1979 7 6 187 U.S.A. Montana Madison Main Axolotle Lake. 1890 In lake. Common. Phenology: vegetative only. RM RM 2777108 Lemna trisulca physical specimen Araceae Lemna trisulca L. 23982 C. Leo Hitchcock 1965 7 11 192 U.S.A. Montana Lake 0.2 mi SE of Nine Pipes Reservoir. Submerged in large pothole. Phenology: vegetative only. RM RM 366822 Lemna trisulca physical specimen Araceae Lemna trisulca L. 3143 Peter Lesica 1984 7 15 197 U.S.A. Montana Sheridan Along Highway 5, ca 5 mi W of Westby. 670 In small pond with Myriophyllum spicatum and Sagittaria latifolia. Phenology: vegetative only. RM RM 131259 Lemna trisulca physical specimen Araceae Lemna trisulca L. 627 Bassett Maguire George Piranian 1932 8 4 217 U.S.A. Montana Glacier Glacier National Park: Pond north of outlet of Lower Saint Marys Lake. 1359 In water. Phenology: vegetative only. RM RM 152385 Lemna trisulca physical specimen Araceae Lemna trisulca L. 5576 Bassett Maguire George Piranian 1934 7 4 185 U.S.A. Montana Summit Lake. Shallow water of lake. Abundant. Phenology: vegetative only. RM RM 157972 Lemna trisulca physical specimen Araceae Lemna trisulca L. 216 L. M. Umbach 1903 6 30 181 U.S.A. Montana Glacier Midvale [now East Glacier Park]. Ponds. Phenology: vegetative only. RM USFS 438620 Lemna trisulca physical specimen Araceae Lemna trisulca L. 1493 James C. Whitham W. E. Fry 1932 7 25 207 U.S.A. Montana Gallatin Gallatin National Forest: Lower Elroy Lake. 2286 First grows on bottom of lake, later floats on top of water. Phenology: vegetative only. RM USFS 43621 Lemna trisulca physical specimen Araceae Lemna trisulca L. 774 James C. Whitham 1931 8 26 238 U.S.A. Montana Gallatin Gallatin National Forest: small lakes above Mystic Lake. 2317 Lake bottoms in shallow water; growing underwater. Common. Phenology: vegetative only. RM USFS 438617 Lemna trisulca physical specimen Araceae Lemna trisulca L. 1769 James C. Whitham 1935 9 25 268 U.S.A. Montana Gallatin Gallatin National Forest: Cub Creek Lake along cut-off trail. 2225 Level ground; moist lake bottom; aquatic. Common. Phenology: vegetative only. RM RM 131258 Lemna trisulca physical specimen Araceae Lemna trisulca L. 628 Bassett Maguire George Piranian 1932 8 4 217 U.S.A. Montana Glacier Glacier National Park: Pond north of outlet of Lower Saint Marys Lake. 1359 Phenology: vegetative only. 3600 3,1,0 true