| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 232517 | MI | Ottawa | Pigeon Lake | 1926 | 04050002 | Black-Macatawa | established |
| 232518 | MI | Ottawa | Pine Creek Bay, Black Lake (Lake Macatawa) | 1926 | 04050002 | Black-Macatawa | established |
| 1607152 | MI | Van Buren | [No locality description provided] | 2017 | 04050002 | Black-Macatawa | established |
| 1599939 | MI | Ottawa | [No locality description provided] | 2012 | 04050002 | Black-Macatawa | established |
| 1599961 | MI | Ottawa | [No locality description provided] | 2012 | 04050002 | Black-Macatawa | established |
| 1599965 | MI | Ottawa | [No locality description provided] | 2012 | 04050002 | Black-Macatawa | established |
| 1892814 | MI | Allegan | [No locality description provided] | 2025 | 04050002 | Black-Macatawa | |
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: 12/15/2025