| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1607711 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607712 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607713 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607714 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607715 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607716 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607717 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
| 1607710 | MI | Bay | [No locality description provided] | 2017 | 04080206 | Saginaw | established |
Citation for this information:
U.S. Geological Survey, 2025,
Hydrocharis morsus-ranae: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/20/2025