| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1562481 | MI | Genesee | [No locality description provided] | 2014 | 04080203 | Shiawassee | established |
| 1567677 | MI | Saginaw | [No locality description provided] | 2016 | 04080203 | Shiawassee | established |
| 1602472 | MI | Genesee | [No locality description provided] | 2015 | 04080203 | Shiawassee | established |
| 1562478 | MI | Genesee | [No locality description provided] | 2014 | 04080203 | Shiawassee | established |
| 1567676 | MI | Saginaw | [No locality description provided] | 2016 | 04080203 | Shiawassee | established |
| 1692046 | MI | Livingston | Lake Chemung | 2020 | 04080203 | Shiawassee | unknown |
Citation for this information:
U.S. Geological Survey, 2026,
Iris pseudacorus: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 2/21/2026