Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1528971
| WA | Cowlitz | Solo Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | established |
1527765
| WA | Cowlitz | Solo Slough | 1995 |
17080003
| Lower Columbia-Clatskanie | established |
1526569
| WA | Cowlitz | Solo Slough | 1996 |
17080003
| Lower Columbia-Clatskanie | established |
1525363
| WA | Cowlitz | Solo Slough | 1997 |
17080003
| Lower Columbia-Clatskanie | established |
1528972
| WA | Cowlitz | Solo Slough | 1998 |
17080003
| Lower Columbia-Clatskanie | established |
1527766
| WA | Cowlitz | Solo Slough | 2009 |
17080003
| Lower Columbia-Clatskanie | established |
1526570
| WA | Cowlitz | Solo Slough | 2015 |
17080003
| Lower Columbia-Clatskanie | established |
1525364
| WA | Cowlitz | Solo Slough | 2017 |
17080003
| Lower Columbia-Clatskanie | established |
1528973
| WA | Cowlitz | Solo Slough | 2018 |
17080003
| Lower Columbia-Clatskanie | established |