Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
243201
| WA | Pacific | Columbia River, Baker bay, Fort Columbia State Park tide flats. | 2002 |
17080006
| Lower Columbia | established |
243198
| WA | Pacific | Columbia River, Baker Bay, Ilwaco Harbor tideflat, outer rocks | 2002 |
17080006
| Lower Columbia | established |
243199
| WA | Pacific | Columbia River, Fort Canby, boat launch, high and low marsh. | 2002 |
17080006
| Lower Columbia | established |