HPSU:V
8494 D. Santner 316 2001-06-21
U.S.A., Oregon, Multnomah, Heron Rookery; Thomas Guide 566 1C., 45.613153 -122.713936
HPSU:V
8501 Angie Kimpo 309 2001-09-15
U.S.A., Oregon, Washington, Schlesinger PRF.
HPSU:V
19087 Dominic Maze 83 2015-10-11
U.S.A., Oregon, Multnomah, Johnson Creek in the Foster Creek floodplain., 45.4755 -122.555
HPSU:V
18960 Jeffrey T. Lesh 353 2017-06-28
U.S.A., Oregon, Clackamas, Ladd Hill., 45.285606 -122.863502
HPSU:V
11225 Michael A. Flinn 1496 1909-10-01
U.S.A., Oregon, Hood River, Hood River, near railroad track.
HPSU:V
11226 Michael A. Flinn 1497 1915-08-23
U.S.A., Oregon, Multnomah, Portland, sandy bars at east end of Hayden Island, in the Columbia River., 45.610623 -122.674516
HPSU:V
15540 Philip K. Gaddis AL36 2009-06-12
U.S.A., Oregon, Harney, ~14 km north of Fields., 42.379722 -118.637778, 1250m
HPSU:V
12363 Tom Daggy 6844 1972-08-04
U.S.A., Texas, Fort Bend, Texas Rd. 36, 9 miles west of Rosenberg.
HPSU:V
19883 John A. Christy, Phil Gaddis, Brian Vaughn 10633 2015-06-24
U.S.A., Oregon, Clackamas, Oregon City, Willamette Falls, site of Blue Heron Paper Mill, alcove of Willamette River between old PGE generator and grinders and former clarifier structure., 45.35354 -122.615194, 9m
HPSU:V
18534 Marsha Holt-Kingsley 102 2016-07-19
U.S.A., Oregon, Clackamas, River Island Natural Area; 0.7 miles SSW of Barton, Oregon., 45.37879 -122.3983, 53m
HPSU:V
18535 Marsha Holt-Kingsley 102 2016-07-19
U.S.A., Oregon, Clackamas, River Island Natural Area; 0.7 miles SSW of Barton, Oregon., 45.37879 -122.3983, 53m
HPSU:V
20796 Jess Shamek, Adrienne Basey 107 2019-08-14
U.S.A., Oregon, Clackamas, Oregon City, Clear Creek, upper prairie,16130 S Springwater Rd., 45.35791 -122.471248, 76m
HPSU:V
21204 Angie Kimpo s.n. 2007-04-03
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
7801 Sherry V. Spencer s.n. 1990-06-17
U.S.A., California, Near Malibu Lake.