| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1763747
| OR | Clatsop | [No locality description provided] | 1952 |
17100201
| Necanicum | |
|
1761860
| OR | Clatsop | [No locality description provided] | 1999 |
17100201
| Necanicum | |
|
243257
| OR | Clatsop | along U.S. 101 near Gearhart | 1952 |
17100201
| Necanicum | collected |
|
243265
| OR | Clatsop | Camp Rilea, SW of Warrenton, W fork of Neacoxie Creek | 1997 |
17100201
| Necanicum | collected |
|
858979
| OR | Clatsop | Gearhart | 1952 |
17100201
| Necanicum | established |
|
859027
| OR | Clatsop | Gearhart | 1999 |
17100201
| Necanicum | established |