WTU:V
344586 Sarah Gage G&R 840 1992-09-13
U.S.A., Washington, Clark, Paradise Point State Beach, near confluence of Lewis and Columbia Rivers., 45.866667 -122.716667, 2 - 3m
WTU:V
4444JWT J. William Thompson 11126 1934-07-29
U.S.A., Washington, Klickitat, North Dalles [Dallesport]., 45.61715 -121.18372
WTU:V
266092 Earle F. Layser 1849 1971-08-29
U.S.A., Washington, Pend Oreille, Calispell Lake., 48.34389 -117.29944
WTU:V
4412 Sister Mary Milburge 825 1933-07-19
U.S.A., Washington, Spokane, Spokane River, Spokane., 47.65889 -117.425
WTU:V
173705 Xerpha M. Gaines, L. Rasmussen, H. Wolfe, Al Overland 757 1952-07-21
U.S.A., Washington, Whitman, Along Snake River near base of Granite Point, upriver from Wawawai., 46.60444 -117.35806
WTU:V
169576 Arthur Cronquist 6086 1949-08-19
U.S.A., Washington, Walla Walla, Columbia River, 3 miles south of Wallula., 46.042125 -118.90417
WTU:V
338787 Eliza Habegger 627 1998-09-29
U.S.A., Washington, Skamania, Columbia River, Pierce National Wildlife Refuge., 45.63138 -121.99811
WTU:V
183948 Xerpha M. Gaines, Mary Hafercamp 329 1949-10-08
U.S.A., Washington, Whitman, Near Granite Point, 4 miles up the Snake River from Wawawai., 46.60444 -117.35806
WTU:V
291406 Arthur Cronquist 6086 1949-08-19
U.S.A., Washington, Walla Walla, Along the Columbia River, 3 miles south of Wallula., 46.042125 -118.90417
WTU:V
134320 F. G. Meyer 1707 1939-10-15
U.S.A., Washington, Whitman, Snake River at Wawawai., 46.63692 -117.38033
WTU:V
34710 G. N. Jones 8584 1935-09-21
U.S.A., Washington, Klickitat, The Columbia River at Lyle., 45.69611 -121.285
WTU:V
262605 W. N. Suksdorf 1675 1892-09-17
U.S.A., Washington, Klickitat, Columbia River at Bingen., 45.715 -121.46333
WTU:V
5420JWT Sister Mary Milburge 622 1932-09-20
U.S.A., Washington, Spokane, Spokane River at Spokane., 47.65889 -117.425
WTU:V
334621 Richard R. Halse 4969 1995-08-08
U.S.A., Oregon, Josephine, Rouge River Canyon just upstream from Rand Ranger Station., 42.6001 -123.572, 207m
WTU:V
56783 Sister Mary Milburge 1252 1936-08-10
U.S.A., Oregon, Wasco, Deschutes River near the mouth., 45.630961 -120.912722
WTU:V
74416 B. F. Dana s.n. 1937-09-23
U.S.A., Oregon, Umatilla, Umatilla Field Station near Hermiston., 45.870907 -119.216111
WTU:V
300158 William H. Baker 11255 1953-08-31
U.S.A., Idaho, Washington, Along the Snake River at Brownlee Ferry., 44.222206 -116.963206
WTU:V
289007 D. R. Simpson 235 1964-08-21
U.S.A., Idaho, Canyon, Curtis Park, about .5 mile upstream from old U.S. 30 bridge at Caldwell or across the river from the north rim Canyon Hill., 43.593684 -116.482228
WTU:V
5394JWT J. William Thompson 1341 1926-07-10
U.S.A., Oregon, Multnomah, Along the Columbia River at Linnton., 45.598728 -122.787044
WTU:V
7195 Louis F. Henderson s.n. 1892-10-05
U.S.A., Washington, Yakima, Confluence of the Yakima and the Nachez [Naches] Rivers., 46.73111 -120.69833
WTU:V
393430 R.E. Brainerd 1981 2011-09-01
U.S.A., Oregon, Linn, Upper end of Green Peter Reservoir, Middle Santiam River arm, on "The Peninsula." 15.3 air miles east-northeast of Sweet Home., 44.480838 -122.449674, 311m
WTU:V
403489 Jeff Walker 772 2015-06-22
U.S.A., Washington, Franklin, Swim area at Lyons Ferry State Park at confluence of the Palouse and Snake Rivers., 46.59602 -118.21883
WTU:V
409511 Ben Legler 13902 2015-09-13
U.S.A., Washington, Cowlitz, Wetland on east shore of Columbia River 1.6 km due north of mouth of Lewis River., 45.869171 -122.778605, 3m
WTU:V
Ben Legler, Sara Legler 14451 2016-10-23
U.S.A., Washington, Grant, At east end of Road C Northeast near north end of Potholes Reservoir., 47.066371 -119.35889, 317m
WTU:V
416963 R.E. Brainerd 2450 2015-11-07
U.S.A., Oregon, Douglas, Umpqua River shoreline at the Yellow Creek Boat Launch on Highway 138; 9.9 miles east-southeast of Elkton., 43.50252 -123.49355, 66m
WTU:V
418436 Jeff Walker 1056 2018-07-09
U.S.A., Washington, Spokane, On banks of Spokane River., 47.68701 -117.07942, 616m
WTU:V
420162 David Giblin 6351 2018-09-11
U.S.A., Washington, Clark, Columbia River shoreline from Washougal Waterfront boat ramp to about 200 meters east upriver., 45.57818 -122.37811, 7m
WTU:V
Peter Dunwiddie, Peter Zika PWD-19-337 2019-07-30
U.S.A., Oregon, Sherman, Southwest side of John Day River, at the Narrows, 10 miles above confluence with Columbia River., 45.662876 -120.508122
WTU:V
Jeff Walker 1302 2020-09-08
U.S.A., Washington, Franklin, Shoreline of free-flowing section of the Columbia River., 46.45492 -119.2563, 108m
WTU:V
Jeff Walker 1400 2021-08-21
U.S.A., Washington, Clark, Steamboat Landing Park in Washougal., 45.57555 -122.35515
WTU:V
Peter Zika, Peter Dunwiddie PWD-21-144 2021-08-17
U.S.A., Oregon, Umatilla, Cold Springs National Wildlife Refuge, 45.854151 -119.171396
WTU:V
431859 Jeff Walker 1189 2019-08-30
U.S.A., Washington, Asotin, In sand along banks of Snake River at the Asotin Slough Habitat Management Unit., 46.33696 -117.02741, 227m