| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1548312 | OH | Lorain | Caley Reservation, Lorain County Metro Parks property, mitigation wetland just south of tree farm. | 2019 | 04110001 | Black-Rocky | established |
| 1633396 | OH | Lorain | Caley Reservation pond | 2019 | 04110001 | Black-Rocky | established |
| 1633673 | OH | Lorain | [Spencer Lake] | 2019 | 04110001 | Black-Rocky | established |
| 1742862 | OH | Lorain | [No locality description provided] | 2019 | 04110001 | Black-Rocky | |
| 1746815 | OH | Lorain | [No locality description provided] | 2021 | 04110001 | Black-Rocky | |
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