Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
545105
| IA | Harrison | Missouri River, rm 670.5, Monona-Harrison ditch | 1997 |
10230004
| Monona-Harrison Ditch | established |
576708
| IA | Plymouth | [No locality description provided by MARIS] | 2003 |
10230004
| Monona-Harrison Ditch | established |
576709
| IA | Plymouth | [No locality description provided by MARIS] | 2003 |
10230004
| Monona-Harrison Ditch | established |