| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1653754 | NY | Livingston | Livingston County, NY, USA | 2018 | 04130003 | Lower Genesee | established |
| 1714693 | NY | Monroe | Rochester Harbor, Genesee River | 2021 | 04130003 | Lower Genesee | |
| 1676326 | NY | Livingston | [No locality description provided] | 2021 | 04130003 | Lower Genesee | |
| 1677378 | NY | Livingston | [No locality description provided] | 2021 | 04130003 | Lower Genesee | |
| 1744888 | NY | Monroe | [No locality description provided] | 2020 | 04130003 | Lower Genesee | |
| 1826249 | NY | Livingston | [No locality description provided] | 2017 | 04130003 | Lower Genesee | |
| 1838173 | NY | Livingston | Conesus Lake | 2020 | 04130003 | Lower Genesee | |
| 1843885 | NY | Livingston | [No locality description provided] | 2021 | 04130003 | Lower Genesee | |
| 1844176 | NY | Livingston | [No locality description provided] | 2021 | 04130003 | Lower Genesee | |
| 1848451 | NY | Livingston | [No locality description provided] | 2022 | 04130003 | Lower Genesee | |
| 1890657 | NY | Livingston | [No locality description provided] | 2025 | 04130003 | Lower Genesee | |
Citation for this information:
U.S. Geological Survey, 2025,
Butomus umbellatus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/17/2025