| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1468033 | MI | Cheboygan | Douglas Lake [~10 mi SW of Cheboygan, MI] | 1916 | 04070004 | Cheboygan | established |
| 1467878 | MI | Cheboygan | Douglas Lake [~10 mi SW of Cheboygan, MI] | 1948 | 04070004 | Cheboygan | established |
| 1467879 | MI | Cheboygan | Douglas Lake [~10 mi SW of Cheboygan, MI] | 1949 | 04070004 | Cheboygan | established |
| 261762 | MI | Cheboygan | Cheboygan-Levering Rd, north of Ingleside | 1954 | 04070004 | Cheboygan | established |
| 1468777 | MI | Cheboygan | Cheboygan County | 1963 | 04070004 | Cheboygan | established |
| 1468833 | MI | Emmet | 1 mile SW of Conway | 1954 | 04070004 | Cheboygan | established |
| 1469063 | MI | Cheboygan | Munro Lake | 1918 | 04070004 | Cheboygan | established |
| 1463631 | MI | Charlevoix | East end of Lake Louise | 1970 | 04070004 | Cheboygan | established |
| 1462126 | MI | Cheboygan | Aloha Township, Section 29 | 1912 | 04070004 | Cheboygan | established |
| 1462296 | MI | Cheboygan | Bryant's Hotel and Cottages | 1927 | 04070004 | Cheboygan | established |
| 1463626 | MI | Cheboygan | West end of UMBS | 1934 | 04070004 | Cheboygan | established |
| 1463675 | MI | Cheboygan | Nichols Bog | 1939 | 04070004 | Cheboygan | established |
| 1467920 | MI | Cheboygan | Reese's Bog UMBS | 1951 | 04070004 | Cheboygan | established |
| 1468300 | MI | Cheboygan | Wolf's Bog | 1957 | 04070004 | Cheboygan | established |
| 1469085 | MI | Cheboygan | Burt Lake | 1994 | 04070004 | Cheboygan | established |
Citation for this information:
U.S. Geological Survey, 2026,
Agrostis gigantea: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 1/17/2026