| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 236858 | MI | Alger | Lake Superior, Munising | 2004 | 04180000 | Lake Superior | established |
| 254263 | MI | Marquette | Lake Superior (upper Marquette Harbor) | 2001 | 04180000 | Lake Superior | established |
| 236857 | MI | Marquette | Lake Superior in lower Marquette Harbor | 2004 | 04180000 | Lake Superior | established |
| 1606168 | MI | Baraga | [No locality description provided] | 2016 | 04180000 | Lake Superior | established |
| 1609894 | MI | Baraga | [No locality description provided] | 2017 | 04180000 | Lake Superior | established |
| 1609922 | MI | Baraga | [No locality description provided] | 2017 | 04180000 | Lake Superior | established |
| 1621390 | MI | Baraga | Ottawa National Forest | 2016 | 04180000 | Lake Superior | established |
Citation for this information:
U.S. Geological Survey, 2026,
Myriophyllum spicatum: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 2/21/2026