| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1748000 | NY | Wyoming | [No locality description provided] | 2022 | 04130002 | Upper Genesee | |
| 1838313 | NY | Livingston | [No locality description provided] | 2020 | 04130002 | Upper Genesee | |
| 1848424 | NY | Livingston | [No locality description provided] | 2022 | 04130002 | Upper Genesee | |
| 1856813 | NY | Wyoming | Silver Lake | 2023 | 04130002 | Upper Genesee | |
| 1859037 | NY | Wyoming | [No locality description provided] | 2024 | 04130002 | Upper Genesee | |
| 1859040 | NY | Wyoming | Silver Lake | 2024 | 04130002 | Upper Genesee | |
| 1859041 | NY | Wyoming | [No locality description provided] | 2024 | 04130002 | Upper Genesee | |
| 1861773 | NY | Wyoming | [No locality description provided] | 2023 | 04130002 | Upper Genesee | |
| 1861775 | NY | Wyoming | [No locality description provided] | 2023 | 04130002 | Upper Genesee | |
| 1861776 | NY | Wyoming | Silver Lake | 2023 | 04130002 | Upper Genesee | |
| 1861777 | NY | Wyoming | [No locality description provided] | 2023 | 04130002 | Upper Genesee | |
| 1861778 | NY | Wyoming | [No locality description provided] | 2023 | 04130002 | Upper Genesee | |
| 1861779 | NY | Wyoming | [No locality description provided] | 2023 | 04130002 | Upper Genesee | |
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