| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1321142 | MI | Genesee | Fenton Millpond | 2011 | 04080203 | Shiawassee | established |
| 1567587 | MI | Genesee | [No locality description provided] | 2016 | 04080203 | Shiawassee | established |
| 1567589 | MI | Genesee | [No locality description provided] | 2016 | 04080203 | Shiawassee | established |
| 1567593 | MI | Genesee | [No locality description provided] | 2016 | 04080203 | Shiawassee | established |
| 1567595 | MI | Genesee | [No locality description provided] | 2016 | 04080203 | Shiawassee | established |
| 1611363 | MI | Livingston | [Thompson Lake] [No locality description provided] | 2018 | 04080203 | Shiawassee | established |
| 1691768 | MI | Genesee | Lake Fenton | 2016 | 04080203 | Shiawassee | unknown |
| 1692028 | MI | Livingston | Bennett Lake | 2019 | 04080203 | Shiawassee | unknown |
| 1692037 | MI | Livingston | Lake Chemung | 2020 | 04080203 | Shiawassee | unknown |
| 1889772 | MI | Livingston | [No locality description provided] | 2025 | 04080203 | Shiawassee | |
Citation for this information:
U.S. Geological Survey, 2025,
Potamogeton crispus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/19/2025