Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1257212
| WA | Cowlitz | Solo Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | unknown |
1526369
| WA | Cowlitz | Solo Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | established |
1525165
| WA | Cowlitz | Willow Grove Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | established |
1528789
| WA | Cowlitz | Willow Grove Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | established |
1527584
| WA | Cowlitz | Willow Grove Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | established |
1257211
| WA | Cowlitz | Willow Grove Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | unknown |
1257214
| WA | Cowlitz | Willow Grove Slough | 1994 |
17080003
| Lower Columbia-Clatskanie | unknown |