| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 877200 | WI | Door | | 2015 | 04190000 | Lake Michigan | established |
| 1558643 | WI | Oconto | [No locality description provided] | 2013 | 04190000 | Lake Michigan | established |
| 1558645 | WI | Oconto | [No locality description provided] | 2013 | 04190000 | Lake Michigan | established |
| 1558675 | WI | Oconto | [No locality description provided] | 2013 | 04190000 | Lake Michigan | established |
| 1597383 | WI | Marinette | [No locality description provided] | 2011 | 04190000 | Lake Michigan | established |
| 1601186 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601191 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601193 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601194 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601195 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601196 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601197 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
| 1601198 | WI | Door | [No locality description provided] | 2012 | 04190000 | Lake Michigan | established |
Citation for this information:
U.S. Geological Survey, 2025,
Phalaris arundinacea: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/17/2025