Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1186890
| OR | Douglas | Koepke Slough immediately S of Hwy 138 | 2015 |
17100303
| Umpqua | established |
1186891
| OR | Douglas | Koepke Slough immediately S of Hwy 138 | 2015 |
17100303
| Umpqua | established |
1396069
| OR | Douglas | Umpqua River | 2004 |
17100303
| Umpqua | established |
166705
| OR | Douglas | Umpqua River [~10 mi W of Scottsburg] | 2005 |
17100303
| Umpqua | established |
275874
| OR | Douglas | Umpqua River at Scottsburg Park | 2006 |
17100303
| Umpqua | established |
275875
| OR | Douglas | Umpqua River at Umpqua Wayside | 2006 |
17100303
| Umpqua | established |