| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1608543 | MI | Alcona | [No locality description provided] | 2017 | 04070006 | Thunder Bay | established |
| 1608892 | MI | Montmorency | [No locality description provided] | 2017 | 04070006 | Thunder Bay | established |
| 1608996 | MI | Alpena | [No locality description provided] | 2017 | 04070006 | Thunder Bay | established |
| 1611901 | MI | Montmorency | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1611974 | MI | Alpena | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1612010 | MI | Alpena | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1612012 | MI | Alpena | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1612013 | MI | Alpena | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1612099 | MI | Alpena | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1691776 | MI | Alcona | Hubbard Lake | 2017 | 04070006 | Thunder Bay | unknown |
| 1608960 | MI | Alpena | [No locality description provided] | 2017 | 04070006 | Thunder Bay | established |
| 1612113 | MI | Alpena | [No locality description provided] | 2018 | 04070006 | Thunder Bay | established |
| 1608988 | MI | Alpena | [No locality description provided] | 2017 | 04070006 | Thunder Bay | established |
Citation for this information:
U.S. Geological Survey, 2025,
Myriophyllum spicatum: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/18/2025