OSU:V
[unknown] s.n. 1947-02-20
United States, Oregon, Lane, Siltcoos Lake., 43.8922 -124.0982
OSU:V
Albert N. Steward s.n. 1958-08-26
United States, Washington, Pend Oreille, border of Pend Orielle [sic] RIver, near Cusick; along Hwy 6., 701m
OSU:V
Ralph L. Thompson 88-1736 1988-07-27
United States, Oregon, Douglas, Myrtle Island Research Natural Area, 11.3-ha island in the Umpqua River at end of Cougar Creek Road, 7.3 km west of Bullock Bridge and OR 138., 43.475 -123.5431
OSU:V
William E. Lawrence 2583 1919-08-06
United States, Oregon, Klamath, about 5 miles southeast of Klamath Falls., 42.1484133548504 -121.677877251088
OSU:V
Quentin D. Clarkson s.n. 1952-06-25
United States, Oregon, Linn, Colorado Lake; submerged in 4 feet of water at upper end of lake., 44.5797 -123.215
OSU:V
Christina Schull AQ013 2009-07-22
United States, Oregon, Clatsop, Fort to Sea; underneath bridge; Lewis and Clark National Historic Park., 46.1081 -123.9314
OSU:V
Albert N. Steward s.n. 1956-08-04
United States, Oregon, Clatsop, Fort Stevens Area., 46.199345 -123.983047
OSU:V
[unknown] s.n. 2000-07-07
United States, Oregon, Marion, Horseshoe Lake., 45.20447 -123.03223
OSU:V
Charles G. Hansen s.n. 1952-06-01
United States, Oregon, Douglas, Tahkenitch Lake., 43.8006897339 -124.129211052
OSU:V
J. A. Parmelee 20449 1956-08-26
Canada, British Columbia, [needs research], near south end of Nimpo Lake; shallow, mucky-bottomed stream running through meadow., 52.3333333333333 -125.116666666667
OSU:V
Albert N. Steward s.n. 1958-08-23
Canada, British Columbia, [needs research], small shallow lake at Shamrock Motel, Salmon Arm.
OSU:V
Charles L. Hitchcock 23967 1965-07-11
United States, Montana, Missoula, slough near Ft. Missoula, water about 3 ft. deep.
OSU:V
Richard R. Halse 2456 1981-08-04
United States, Washington, Cowlitz, growing in Silver Lake across from the Silver Lake Post Office at milepost 6 along State Hwy. 504., 46.2934781 -122.813861, 156m
OSU:V
Richard R. Halse 2373 1981-07-13
United States, Oregon, Deschutes, Bend, Mirror Pond, very common along the margins of the Deschutes River in moderately moving water in the city park., 44.05847 -121.31382, 1079m
OSU:V
Donald H. Mansfield 08530 2008-07-16
United States, Oregon, Malheur, at Warm Springs, a couple of miles upriver from Three Forks., 42.5302833333333 -117.1847, 1231m
OSU:V
Albert N. Steward 6454 1953-07-23
United States, Oregon, Harney, near Frenchglen., 42.8269 -118.9144, 1219m
OSU:V
Albert N. Steward s.n. 1953-07-28
United States, Oregon, Harney, slough near P. Ranch, Frenchglen., 42.81387 -118.9789
OSU:V
John A. Christy 7127 1989-07-26
United States, Oregon, Clatsop, Warren Slough, 1 mi N of Knappa., 46.19187 -123.57733, 3m
OSU:V
Richard R. Halse 6448 2003-08-10
United States, Oregon, Malheur, along U.S. Hwy. 20, ca. 15 miles northeast of Juntura., 43.7872222222222 -117.846388888889, 832m
OSU:V
Richard R. Halse 2359 1981-07-10
United States, Oregon, Columbia, Sauvie Island, at the end of a dead end road off of Reeder Road, just east of a levee., 45.75746 -122.79478, 3m
OSU:V
Barbara L. Wilson 9362 1998-06-18
United States, Oregon, Deschutes, Biak Training Center; south and east of Redmond; silt pond on the North Unit Main Canal., 44.1632893708 -121.168469088, 1000m
OSU:V
Albert N. Steward 6158 1953-06-01
United States, Oregon, Lane, in Woahink Lake, near Route 101., 43.9138935879 -124.100243919
OSU:V
Steve J. Grillos s.n. 1953-10-05
United States, Oregon, Benton, Thornton Lake, 1 mile NW of Albany., 44.64532 -123.1197
OSU:V
Andy Landforce s.n. 1957-11-01
United States, Oregon, Wasco, The Dalles., 45.5947 -121.1775
OSU:V
H. R. Newcomb s.n. 1940-05-25
United States, Oregon, Benton, in pit to right of tall wooden structure at gravel co. S.E. of Corvallis., 44.5402 -123.2411
OSU:V
John S. Morse s.n. 1939-09-24
United States, Oregon, Benton, Winkle (or Wagner) Lake., 44.4267 -123.2661
OSU:V
Richard R. Halse 5014 1995-11-16
United States, Oregon, Benton, Corvallis, Willamette Park; in a small side slough off the Willamette River in almost still water., 44.55529 -123.24387, 64m
OSU:V
John S. Morse s.n. 1939-09-20
United States, Oregon, Linn, Colorado Lake- north end.
OSU:V
J. E. Dealy 19 1954-10-17
United States, Oregon, Linn, Colorado Lake., 44.5644 -123.2097, 69m
OSU:V
Scott Sundberg 4788 1998-11-16
United States, Oregon, Clatsop, Camp Rilea; southwest of Warrenton; near north end of Sunset Lake., 46.11929 -123.93131, 9m
OSU:V
Thomas J. Howell s.n.
United States, Oregon, Columbia or Multnomah, Sauvie's Island., 45.7223 -122.8192
OSU:V
Richard R. Halse 9634 2015-10-06
United States, Oregon, Deschutes, Sunriver; in the Deschutes River just downstream from the Harper Bridge on Spring River Road., 43.864764 -121.455855, 1268m
OSU:V
OSC-V-053998 Helen M. Gilkey s.n. 1940-05-25
United States, Oregon, Malheur, none.
OSU:V
La Rea Johnston 2345 1961-10-29
United States, Oregon, Linn, old road to Albany, Fred J. Porter's Pond.
OSU:V
Richard R. Halse 4982 1995-09-07
United States, Oregon, Benton, Corvallis, in a small pond off the Willamette River at the north end of Willamette Park., 44.54138 -123.2417, 64m
OSU:V
[needs research] s.n. 1933-10-24
United States, Oregon, Linn, Colorado Lake., 44.5644 -123.2097
OSU:V
John B. Leiberg s.n.
United States, Idaho, [Bonner], in water 6 to 12 m. in depth in Lake Pend Oreille.
OSU:V
Max Doty 1349 1939-10-04
United States, Oregon, Benton, Willamette River, Corvallis., 44.5647 -123.2608
OSU:V
Georgia S. Mason 9960 1974-09-17
United States, Oregon, Lane, Off Franklin Boulevard, southeast of Eugene; from edge of a pond near the Coast Fork of the Willamette River., 43.98289 -122.92597
OSU:V
Albert N. Steward s.n. 1951-09-29
United States, Oregon, Lane, Siltcoos Lake, south of Florence., 43.8922 -124.0982
OSU:V
Georgia S. Mason 162 1959-10-31
United States, Oregon, Benton, Collins Bay, 8 mi. northeast of Corvallis., 44.678813397 -123.114069723137
OSU:V
Georgia S. Mason 9292 1971-10-05
United States, Oregon, Lane, swamp across road from Fernridge Dam., 44.1206 -123.2983
OSU:V
John B. Leiberg 2927 1896-08-10
United States, Oregon, Klamath, Sprague River; Sprague R. Valley., 1220m
OSU:V
Georgia S. Mason 9967 1974-09-24
United States, Oregon, Lane, Seavey Loop, southeast of Eugene; in a shallow creek on Flynn's property., 43.98289 -122.92597
OSU:V
Georgia S. Mason 9557 1973-07-09
United States, Oregon, Lane, between Franklin Boulevard and the Willmette River at Goshen, about 3 miles southeast of Eugene., 43.9840957016288 -122.991482966619
OSU:V
Louis F. Henderson 11557 1929-07-18
United States, Oregon, Lincoln, Devil's Lake., 44.9675 -124.0156
OSU:V
Louis F. Henderson 16634 1934-09-18
United States, Oregon, Lane, Willamette River, op Judkins Point., 44.0433 -123.0533
OSU:V
William C. Cusick 2704 1901-07-26
United States, Oregon, Crook, south branch of Crooked River near the source., 43.7332 -120.09843
OSU:V
Georgia S. Mason 9533 1973-07-03
United States, Oregon, Lane, between Franklin Boulevard and the Willamette River at Goshen, about 3 miles southeast of Eugene., 43.9956 -123.0103
OSU:V
Georgia S. Mason 9589 1973-07-22
United States, Oregon, Lane, between Franklin Boulevard and the river, about 3 miles southeast of Eugene; growing in a pond in open waste ground near the Coast Fork of the Willamette River., 43.9840957016288 -122.991482966619
OSU:V
Georgia S. Mason 10290 1975-09-07
United States, Oregon, Lane, near the wooden bridge over the canal on Seavey Loop, Eugene., 44.011544 -123.005429
OSU:V
John B. Leiberg s.n.
United States, Idaho, [Bonner], Lk. Pend Oreille.
OSU:V
Louis F. Henderson 14213 1931-08-10
United States, Oregon, Lane, across the river, East Eugene., 44.0522 -123.0856
OSU:V
LeRoy E. Detling 270 1928-08-20
United States, Oregon, Deschutes, margin of East Lake, Newberry Crater, Paulina Mts, Deschutes Nat. Forest., 43.7281579363 -121.209990172
OSU:V
Georgia S. Mason 9475 1972-10-25
United States, Oregon, Lane, at Goshen, about 3 miles southeast of Eugene; small pond in waste ground along the Coast Fork of the Willamette River., 43.9956 -123.0103
OSU:V
Ralph L. Thompson 5901 1977-06-07
United States, Oregon, Douglas, Myrtle Island Research Natural Area, 11.3-ha island in the Umpqua River, at end of Cougar Creek Road, 7.3 km west of Bullock Bridge and OR 138., 43.475 -123.5431
OSU:V
Louis F. Henderson 13997 1931-08-14
United States, Oregon, Lane, common in Siltcoos Lake., 43.8922 -124.0982
OSU:V
Georgia S. Mason 9651 1973-09-22
United States, Oregon, Lane, pond near the end of the Wildish Company private road along the Willamette River, southeast of Eugene., 44.0243421 -122.9901242
OSU:V
Georgia S. Mason 9962 1974-09-17
United States, Oregon, Lane, off Franklin Boulevard, southeast of Eugene; from a pond near the Coast Fork of the Willamette River., 43.98289 -122.92597
OSU:V
OSC-V-256246 George Kral 381 2013-07-08
United States, Oregon, Washington, Killin Wetland., 45.611 -123.147, 58m
OSU:V
OSC-V-258229 Suzanne Anderson 2013-39 2013-07-13
U.S.A., Oregon, Deschutes, Hosmer Lake Campground and vicinity., 43.96092 -121.7861, 1518m
OSU:V
Peter F. Zika 17622 2002-08-24
United States, Washington, King, Cedar River Watershed; Walsh Lake., 47.4116666666667 -121.93, 221m
OSU:V
R. McHugh s.n. 1951-10-06
United States, Oregon, Lane, Siltcoos Lake., 43.8922 -124.0982
OSU:V
Frank P. Sipe s.n. 1937-07-27
United States, Oregon, Lane, Siltcoos Outlet., 43.8815 -124.113