HPSU:V
13168 John R. MacDonald 10399 1997-05-06
U.S.A., Alabama, Covington, River Falls, area by bridge where Hwy. 84 crosses Conecuh River.
HPSU:V
13688 John W. Reynolds 50 2000-10-28
U.S.A., California, Central CA, site unknown.
HPSU:V
8723 Melinda Trask, Ela Abrams 92 2001-09-01
U.S.A., Oregon, Clackamas, West Linn, Camassia Preserve, across Willamette River from Oregon City., 45.360409 -122.617724, 91m
HPSU:V
11833 John W. Reynolds 106 2002-09-04
U.S.A., Oregon, Multnomah, Rooster Rock State Park, boat basin., 45.543815 -122.247774
HPSU:V
15444 Philip K. Gaddis WN87 2013-08-12
U.S.A., Oregon, Multnomah, Powers Marine Park, Willamette River west shore, 1 km south of Sellwood bridge, Portland., 45.455556 -122.661667, 3m
HPSU:V
15872 Erin Riggs 336 2010-08-00
U.S.A., Oregon, Multnomah, North Portland, Smith and Bybee Wetlands Natural Area, 45.611816 -122.712309, 9m
HPSU:V
15873 Erin Riggs 335 2010-08-00
U.S.A., Oregon, Multnomah, North Portland, Smith and Bybee Wetlands Natural Area, 45.611816 -122.712309, 9m
HPSU:V
19430 Dominic Maze 452 2017-09-13
U.S.A., Oregon, Multnomah, Portland; mainstem Columbia River Slough., 45.59824 -122.714319
HPSU:V
18455 Jeffrey T. Lesh 1043 2018-09-04
U.S.A., Oregon, Clackamas, Oregon City. Lower Clackamas River, 400 meters downstream from High Rocks., 45.3778 -122.58726
HPSU:V
18456 Jeffrey T. Lesh, Lindsey Karr 1060 2018-09-19
U.S.A., Oregon, Clackamas, Barton. Near confluence of Goose Creek and overflow channel of Clackamas River., 45.372 -122.3916
HPSU:V
20230 Jeffrey T. Lesh 1047 2018-09-10
U.S.A., Oregon, Clackamas, Oregon City, Molalla Avenue and Logus-Roosevelt Alley., 45.34999 -122.59647
HPSU:V
20290 Jeffrey T. Lesh 1260 2019-09-06
U.S.A., Oregon, Multnomah, Gresham, Tsuru Island at Main City Park on Johnson Creek., 45.495856 -122.429795
HPSU:V
20849 John A. Christy 10532 2012-10-02
U.S.A., Oregon, Multnomah, Rooster Rock State Park, Sand Island., 45.553504 -122.197976, 5m
HPSU:V
20674 Jeffrey T. Lesh 1269 2019-09-14
U.S.A., Oregon, Multnomah, Oxbow Park, Sandy River., 45.490953 -122.302443
HPSU:V
21017 Dominic Maze 1137 2019-08-30
U.S.A., Oregon, Multnomah, Portland. Columbia River Slough inlet to the south off of main channel. "Wapato Slough". Approximately 830m upstream from the City Dump Road bridge., 45.606741 -122.745441, 6m
HPSU:V
21233 Angie Kimpo s.n. 2008-09-15
U.S.A., Oregon, Clackamas, Willamette Narrows, 4 mi. S of West Linn, 1.5 mi. S of Willamette Park., 45.314722 -122.6675, 50m
HPSU:V
21466 Angie Kimpo 2006-1 2006-09-25
U.S.A., Oregon, Clackamas, Parsons., 45.383756 -122.422683
HPSU:V
20687 Jeffrey T. Lesh 1044 2018-09-04
U.S.A., Oregon, Clackamas, Oregon City. Lower Clackamas River, 400 meters downstream from High Rocks., 45.3778 -122.58726
HPSU:V
22257 Dominic Maze 1461 2019-09-12
U.S.A., Oregon, Multnomah, Portland. Oaks Bottom Wildlife Refuge., 45.477311 -122.656243, 9m
HPSU:V
24042 Richard E. Brainerd 2613 2017-07-10
U.S.A., Oregon, Columbia, Dibblee Point County Park, 5.5 km northwest of Rainier., 46.1172 -122.9959, 5m
HPSU:V
24133 Richard E. Brainerd 2900 2018-09-03
U.S.A., Washington, Clark, Highway 14, just south of Washougal; 100 m east of Washougal River Road on the Columbia River Dike., 45.5762 -122.3551, 13m
HPSU:V
24897 George Kral 548 2015-08-02
U.S.A., Oregon, Multnomah, Columbia River bank just east of Chinook Landing., 45.5642 -122.4171, 3m
HPSU:V
24898 George Kral 546 2015-08-02
U.S.A., Oregon, Multnomah, Columbia River bank just east of Chinook Landing., 45.5642 -122.4171, 3m
HPSU:V
24950 George Kral 548 2015-08-02
U.S.A., Oregon, Multnomah, Columbia River bank just east of Chinook Landing., 45.564191 -122.417103, 3m