WTU:V
333368 Florence E. Caplow, Kathryn A. Beck 95140 1995-09-02
U.S.A., Washington, Franklin, Savage Island, Wahluke Wildlife Area, Hanford Site., 46.5475 -119.30111
WTU:V
100877 T. H. Scheffer s.n. 1945-08-02
U.S.A., Washington, Grant, Upper Grand Coulee., 47.94167 -119.00222
WTU:V
224076 David Sutherland, Don Simpson 1094 1965-07-18
U.S.A., Washington, King, Seattle, north of western approach to Evergreen Pt. Bridge, Lake Washington., 47.73556 -122.33556
WTU:V
272658 Wilhelm N. Suksdorf 2174 1892-09-22
U.S.A., Washington, Klickitat, Ponds along Columbia River, Bingen., 45.715 -121.46333
WTU:V
110702 Harold St. John, W. D. Courtney, Charles S. Parker 5507 1921-07-16
U.S.A., Washington, Okanogan, Methow River valley., 48.129743 -120.001573
WTU:V
321550 E. Burnett, M. Arnot 351 1991-06-08
U.S.A., Washington, Snohomish, Big Ditch Skagit Wildlife Area west of Hwy 530., 48.2827 -122.3706
WTU:V
67073 F. L. Pickett s.n. 1934-06-07
U.S.A., Washington, Whitman, Lower end of Rock Lake., 47.18444 -117.68111
WTU:V
223948 C. L. Hitchcock 24112 1965-09-02
U.S.A., Washington, Yakima, S. Wapato Rd. and Yost Rd., 46.44778 -120.41917
WTU:V
35227 Jonna Ahl, Judy Loescher s.n. 1983-07-22
U.S.A., Washington, Okanogan, Owhi Lake, 5 miles northeast of Nespelem, sample 12, east shore, depth 1 meter., 48.23396 -118.90134, 762m
WTU:V
186166 J. A. Calder, D. B. O. Savile, J. M. Ferguson 15364 1954-09-03
Canada, British Columbia, Ca. one mile west of Vanderhoof.
WTU:V
29010 G. N. Jones 5252 1934-07-04
U.S.A., Idaho, Fremont, Buffalo River., 44.414171 -111.393063
WTU:V
173030 W. B. Schofield 2782 1952-08-16
U.S.A., Alaska, Naknek River.
WTU:V
114107 C. L. Hitchcock 16806 1947-07-25
U.S.A., Montana, Madison, Backwater of Madison River 6 miles south of Ennis.
WTU:V
34039 J. William Thompson 12067 1935-07-15
U.S.A., Oregon, Harney, In irrigating ditch at Frenchglen., 42.826827 -118.915478
WTU:V
222863 C. L. Hitchcock 23887 1965-07-07
U.S.A., Idaho, Clark, About 15 miles north of Dubois, along highway to Monida., 44.39364 -112.23
WTU:V
223622 C. L. Hitchcock, R. Spellenberg, D. Sutherland 23862 1965-07-06
U.S.A., Idaho, Lemhi, Birch Creek, 20 miles southeast of Gilmore., 44.255552 -112.980779
WTU:V
176827 C. L. Hitchcock, C. V. Muhlick 21063 1957-05-28
U.S.A., Oregon, Malheur, About 15 miles west of Rome and the Owyhee River., 42.804416 -117.891599
WTU:V
200780 Albert N. Steward, Charles G. Hansen 7005 1955-09-12
U.S.A., Oregon, Harney, South of Harney Lake., 43.153825 -119.126908, 1280m
WTU:V
194857 Albert N. Steward, John E. Smith 7323 1956-07-24
U.S.A., Oregon, Owyhee, 3 miles southeast of Jordan Valley., 1311m
WTU:V
49436 Fred A. Barkley 1925 1937-10-30
U.S.A., Montana, Bitterroot Valley east of Stevensville.
WTU:V
24553JWT J. William Thompson s.n. 1927-09-16
U.S.A., Oregon, Multnomah, Hayden Island, near Interstate Bridge., 45.613813 -122.682635
WTU:V
24712JWT Morton E. Peck 15365 1927-06-30
U.S.A., Oregon, Stream from Hot Springs, civinity of Lakeview.
WTU:V
8574JWT Morton E. Peck 19190 1936-07-03
U.S.A., Oregon, Harney, 4 miles southeast of Burns., 43.545277 -118.997542
WTU:V
91593 C. L. Hitchcock, C. V. Muhlick 9356 1944-06-29
U.S.A., Idaho, Custer, Along Morgan Creek (empties into Salmon River ca 10 miles north of Challis). Backwater of Creek ca 3 miles from mouth., 44.660765 -114.226249
WTU:V
222865 C. L. Hitchcock, R. Spellenberg, D. Sutherland 23925 1965-07-09
U.S.A., Montana, Carbon, 9 miles west of Joliet.
WTU:V
285843 Barbara Ertter 4125 1981-06-04
U.S.A., Oregon, Malheur, A few miles southeast of Vale west of Lytle Blvd., 43.909738 -117.205798, 762m
WTU:V
373777 Peter F. Zika, David Giblin, Cathy Maxwell, Ben Legler 22297 2005-08-30
U.S.A., Washington, Wahkiakum, Rock east shore of Grays Bay, Columbia River. At Pigeon Bluff, below Altoona-Pillar Rock Road., 46.275 -123.678333, 2m
WTU:V
367777 P. F. Zika, F. Weinmann 19945 2004-08-12
U.S.A., Washington, Pend Oreille, South end of Sullivan Lake, near Noisy Creek Campground., 48.79 -117.285, 776m
WTU:V
371176 Patrick D. Warrington 5925 1980-08-21
Canada, British Columbia, Fraser Valley, Coquitlam, Pitt Lake, 92G-7E., 49.4 -122.566667, 1m
WTU:V
371499 P. F. Zika 11775 1992-07-26
U.S.A., Oregon, Multnomah, South shore of Columbia river, opposite southeast end of Gary Island, base of sandy bluff., 45.5553 -122.3398
WTU:V
381599 David Giblin 2387 2008-09-04
U.S.A., Washington, Adams, Herman Lake, along shoreline near boat ramp., 46.89746 -119.19958, 288m
WTU:V
386662 Peter Zika, J. Smith, D. Mansfield, D. Giblin 23219 2007-07-22
U.S.A., Oregon, Harney, Near Knox Pond., 42.891667 -118.881667, 1275m
WTU:V
382701 David Giblin 04-136 2004-08-05
U.S.A., Oregon, Harney, Steens Mountain, Page Springs Campground, Donner und Blitzen Creek, 100 meters north of second bridge along North Loop Road., 42.803611 -118.865278
WTU:V
408958 David Giblin 2331 2008-08-29
U.S.A., Washington, Grant, Potholes Wildlife Area. Drainage slough west side of road, south side of slough. From roadside to 2 kilometers west of road., 47.08172 -119.34336, 314m
WTU:V
400483 Peter F. Zika 26907 2014-09-09
Canada, British Columbia, North side of International Point, Silver Skagit Road on east shore of Ross Lake reservoir, also common a few feet to south over United States border., 49.0001 -121.065, 490m
WTU:V
405311 David Giblin, Ben Legler 2923 2009-06-16
U.S.A., Washington, Grant, 8 miles east of Mattawa along road 24 Southwest, at intersection with road K Southwest., 46.7368 -119.72569, 223m
WTU:V
410804 Patricia Johnson NWCA16-4872-V1-Q3 2016-06-23
U.S.A., Washington, Skagit, Skagit River Estuary on Puget Sound., 48.30602 -122.3866
WTU:V
409772 Peter F. Zika 28024 2016-07-05
U.S.A., Oregon, Deschutes, Mirror Lake, an impoundment on the Deschutes River, Drake Park, Bend., 44.0598 -121.3177, 1090m
WTU:V
412489 Peter F. Zika 28310A 2016-08-17
U.S.A., Washington, Whatcom, Southeast shore of Lake Whatcom, between Fir Creek and Bramnian Creek, north of South Bay Drive., 48.6708 -122.2718, 90m
WTU:V
412500 Peter F. Zika 28310A 2016-08-17
U.S.A., Washington, Whatcom, Southeast shore of Lake Whatcom, between Fir Creek and Bramnian Creek, north of South Bay Drive., 48.6708 -122.2718, 90m
WTU:V
412541 Peter F. Zika 28285 2016-08-14
U.S.A., Washington, Pacific, E side of Route 4, near milepost 1, along Naselle River, 7 air km NW of Longfellow Hill. <br/>, 46.4172 -123.8469, 1m
WTU:V
412883 Peter F. Zika 28391 2016-09-04
U.S.A., Washington, Kittitas, NE shore of Lake Easton reservoir., 47.2531 -121.1959, 665m
WTU:V
412778B Barbara L. Wilson, Nick Otting 18605 2015-07-22
U.S.A., Oregon, Josephine, Lake Selmac, near southwest end., 42.260714 -123.578488, 412m
WTU:V
416679 Peter F. Zika 29060 2017-08-19
U.S.A., Oregon, Morrow, Marshy margin of south shore of Lake Umatilla reservoir on Columbia River, 8.5 air kilometers southwest of Crow Butte Island., 45.8135 -119.959, 80m
WTU:V
David Giblin 6475 2018-09-13
U.S.A., Washington, Clark, Columbia River. Cottonwood Beach Park. Shoreline from Recognition Center east fro approximately 1 kilometer., 45.56605 -122.34017
WTU:V
424753 Cathy Maxwell, Kathleen Sayce, David Giblin. 1691 2010-09-22
U.S.A., Oregon, Clatsop, Julia Butler Hansen National Wildlife Refuge. Pillar Rock Island., 46.2501 -123.5827, 1m
WTU:V
Peter Dunwiddie, Peter Zika PWD-18-390 2018-07-12
U.S.A., Washington, Benton, Mouth of Glade Creek on Columbia River., 45.89119 -119.69152
WTU:V
422352 R. E. Brainerd 2615 2017-07-10
U.S.A., Oregon, Columbia, Dibblee Point County Park, 5.5 km northwest of Rainier., 46.11807 -122.99795, 2m
WTU:V
422819 R. E. Brainerd 2623 2017-08-01
U.S.A., Washington, Pacific, Near mouth of the Columbia River; 0.9 km south of downtown Ilwaco, 0.2 km south of Robert Gray drive., 46.30071 -124.04544
WTU:V
427313 David Giblin 7354 2019-09-19
U.S.A., Washington, Okanogan, Whitestone Lake. Approximately 5 kms west of Ellisforde. Public fishing access area., 48.79167 -119.46949, 382m
WTU:V
423799 R. E. Brainerd 2647b 2017-08-25
U.S.A., Oregon, Lane, Wilbur Island, 0.75 km southeast of Cushman., 43.9792 -124.0409, 1m
WTU:V
424249 David Giblin 6474 2018-09-13
U.S.A., Washington, Clark, Columbia River. Cottonwood Beach Park. Shoreline from Recognition Center east fro(for) approximately 1 kilometer., 45.56605 -122.34017
WTU:V
Peter F. Zika, Peter Dunwiddie PWD-19-324A 2019-07-30
U.S.A., Oregon, Wasco, Deschutes River Recreation Area, Heritage Landing., 45.633326 -120.914858, 53m
WTU:V
445062 David Giblin 8862 2022-09-14
U.S.A., Washington, Lincoln, Coffeepot Lake. From boat launch along shoreline to eastern end of lake., 47.50136 -118.55337, 538m
WTU:V
David Giblin 8903 2022-09-15
U.S.A., Washington, Lincoln, Twin Lakes Recreation Area. Upper Twin Lake. From boat ramp around the western shore and partially up the south shoreline., 47.53094 -118.50567, 552m
WTU:V
David Giblin 8909 2022-09-15
U.S.A., Washington, Lincoln, Twin Lakes Recreation Area. Upper Twin Lake. From boat ramp around the western shore and partially up the south shoreline., 47.53094 -118.50567, 552m
WTU:V
445049 David Giblin 8929 2022-09-16
U.S.A., Washington, Grant, Caliche Lakes on south side of South Frontage Road approximately 9 km south of George., 47.03276 -119.92721, 343m