Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1613719
| OR | Clatsop | Pond near Beerman Creek Lane | 2019 |
17100201
| Necanicum | established |
1419040
| OR | Clatsop | Yeon unit of Lewis and Clark National Historical Park | 2017 |
17100201
| Necanicum | unknown |
280138
| OR | Lincoln | Beaver Creek, near boat ramp at Hwy 101 in Ona State Park | 2011 |
17100205
| Alsea | collected |
877603
| OR | Lincoln | Olalla Reservoir | 2015 |
17100204
| Siletz-Yaquina | established |
1419068
| OR | Tillamook | Crescent creek between Lake Lytle and the small lagoon/lake to the north. | 2017 |
17100203
| Wilson-Trusk-Nestuccu | unknown |