Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
40878
| OR | Clatsop | Rilea Slough, Camp Rilea (National Guard), 3.5 miles southwest of Warrenton and west of highway 101. | 2001 |
17100201
| Necanicum | established |
295821
| OR | Clatsop | Rilea Slough, Camp Rilea (National Guard), 3.5 miles southwest of Warrenton and west of highway 101. | 2009 |
17100201
| Necanicum | established |
295825
| OR | Clatsop | Rilea Slough, Camp Rilea (National Guard), 3.5 miles southwest of Warrenton and west of highway 101. | 2013 |
17100201
| Necanicum | established |