| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1562030 | MI | Ingham | [No locality description provided] | 2014 | 04050004 | Upper Grand | established |
| 1562130 | MI | Ingham | [No locality description provided] | 2014 | 04050004 | Upper Grand | established |
| 1562409 | MI | Ingham | [No locality description provided] | 2014 | 04050004 | Upper Grand | established |
| 1562437 | MI | Ingham | [Lake Lansing] [No locality description provided] | 2014 | 04050004 | Upper Grand | established |
| 1691961 | MI | Jackson | Grass Lake | 2021 | 04050004 | Upper Grand | unknown |
| 1891093 | MI | Eaton | [No locality description provided] | 2025 | 04050004 | Upper Grand | |
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: 12/17/2025