Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
295300
| OR | Malheur | Lower Malheur (HUC8) non-specific | 2001 |
17050117
| Lower Malheur | established |
40668
| OR | Malheur | unnamed irrigation ditch (near Foothills Drive, Ontario, OR), Malheur River, Snake River drainage | 1995 |
17050117
| Lower Malheur | established |