WTU:V
143009 J. D. Menzies s.n. 1946-09-08
U.S.A., Washington, Benton, Below Paterson., 45.93722 -119.60167
WTU:V
350551 P. F. Zika 18133 2002-10-17
U.S.A., Washington, Skamania, N shore of Columbia River, 1 km NE of Skamania Island., 45.6 -122.1, 8m
WTU:V
334521 Jon Titus s.n. 1995-10-03
U.S.A., Oregon, Linn, Courtney Creek mudflats on west side of U.S. I-5 north of exit #216 ca. [circa] 15 miles south of Albany., 44.398033 -123.064285
WTU:V
18497JWT J. William Thompson 3892 1927-09-25
U.S.A., Oregon, Multnomah, At Linnton., 45.598728 -122.787044
WTU:V
18496JWT J. William Thompson 1342 1926-07-10
U.S.A., Oregon, Multnomah, Near Linnton., 45.598728 -122.787044
WTU:V
155551 Q. D. Clarkson, Steve J. Grillos s.n. 1953-10-29
U.S.A., Oregon, Benton, Along Willamette River; Corvallis Sand & Gravel Company land; 1/2 mile south of Corvallis.
WTU:V
370845 Ben Legler, David Giblin 3099 2005-09-21
U.S.A., Washington, Clark, Beach and bike trail access point, ca. [circa] 0.5 mile south of Frenchman's Bar Waterfront Park, northwest of Vancouver., 45.666617 -122.757617, 3m
WTU:V
368333 Peter F. Zika 23433A 2007-08-19
U.S.A., Washington, Klickitat, East side of Klickitat River, just above dammed waters of Columbia River, circa 1 air kilometer north of Lyle., 45.703333 -121.28, 25m
WTU:V
371488 P. F. Zika 11770 1992-07-26
U.S.A., Oregon, Multnomah, Near south shore of Columbia River, delta of Sandy River., 45.5553 -122.3398, 6m
WTU:V
371779 Peter F. Zika, D. Knoke, David Giblin 19036 2003-09-12
U.S.A., Washington, Yakima, Wenas Lake Reservoir, fishing access at inlet., 46.821667 -120.683333, 575m
WTU:V
380394 David Giblin 2309 2008-08-28
U.S.A., Washington, Grant, Potholes Wildlife Area. Sand Dunes Road. Base of spillway for lake outlet and nearby spit, west side of road., 47.08026 -119.33403, 319m
WTU:V
379280 Peter F. Zika 18068 2002-10-07
U.S.A., Washington, Grant, North side of Crab Creek, Beverly Dunes off-road vehicle area., 46.83 -119.893333, 140m
WTU:V
379150 Richard R. Halse 5497 1998-09-03
U.S.A., Washington, Klickitat, Along the Callesport Road 0.2 miles west of its junction with U.S. Highway 197 near the north end of the Dalles Bridge over the Columbia River., 45.6125 -121.156, 60m
WTU:V
382424 Peter F. Zika 25394 2010-08-25
U.S.A., Oregon, Curry, North bank of Rogue River, near mouth of Missouri Creek, river mile 43.5., 42.705 -123.823333, 125m
WTU:V
382423 Peter F. Zika 25386 2010-08-24
U.S.A., Oregon, Josephine, South bank of Rogue River, between Whiskey Creek and Alder Creek, river mile 31, about 2 miles west-northwest of Rainie Falls., 42.658333 -123.645, 180m
WTU:V
382421 Peter F. Zika 25392 2010-08-25
U.S.A., Oregon, Curry, North bank of Rogue River, near mouth of Missouri Creek, river mile 43.5., 42.705 -123.823333, 125m
WTU:V
387731 Peter F. Zika 25815 2011-10-06
U.S.A., Oregon, Umatilla, South shore of Columbia River, north of Route 730, 3.5 road miles west of Umatilla., 45.91 -119.415, 85m
WTU:V
396510 R.E. Brainerd, N. Otting 2256 2013-09-11
U.S.A., Oregon, Klamath, Klamath Falls on east side of Lake Ewauna at wetland mitigation site immediately southeast of sewage treatment plant and compost facility., 1241m
WTU:V
396355 Frank Lomer 5800 2005-09-27
Canada, British Columbia, Osoyoos Lake, east side, 1.4 kilometers southeast of Mica Creek mouth., 49.053056 -119.4625, 276m
WTU:V
400183 Nick Otting 3500 2012-09-22
U.S.A., Oregon, Multnomah, Sauvie Island, Sturgeon Island at Oak Island, 15 air miles north-northwest of downtown Portland., 45.720694 -122.815577
WTU:V
400231 Peter F. Zika 26828 2014-08-27
U.S.A., Washington, Grant, 9 air kilometers southwest of Goat Island in Moses Lake., 47.059 -119.415, 315m
WTU:V
WTU-V-021357 Ben Legler 13969 2015-10-26
U.S.A., Washington, Grant, Southeast end of Potholes Reservoir, at boat launch along Road M SE., 46.988701 -119.210374, 309m
WTU:V
Ben Legler, Sara Legler 14440 2016-10-22
U.S.A., Washington, Grant, Near west shore of Potholes Reservoir ca 3 km northwest of Potholes State Park., 46.997514 -119.37555, 317m
WTU:V
423703 David Giblin 6547 2018-10-04
U.S.A., Washington, Okanogan, Roundup Park in south end of town along the west bank of the Okanogan River., 48.35407 -119.59602, 231m
WTU:V
Peter F. Zika, Peter Dunwiddie PWD-19-343 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
423893 R. E. Brainerd 2915 2019-09-09
U.S.A., Oregon, Polk, Luckiamute Landing State Natural Area North Unit; west shore of the Willamette River at river mile 108., 44.747 -123.13977, 50m
WTU:V
Peter Zika, Peter Dunwiddie PWD-21-143 2021-08-17
U.S.A., Oregon, Umatilla, Cold Springs National Wildlife Refuge, 45.854151 -119.171396