| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 256835 | MI | Barry | Cedar Creek, MI, north of Battle Creek | 2008 | 04050007 | Thornapple | established |
| 256836 | MI | Barry | East of Middleville, MI (SE of Grand Rapids) | 2008 | 04050007 | Thornapple | established |
| 258200 | MI | Kent | Browne Twp., SE of Grand Rapids, MI | 2008 | 04050007 | Thornapple | established |
| 258201 | MI | Kent | Whitneyville Rd, NW of Campau Lake and SE of Grand Rapids, MI | 2008 | 04050007 | Thornapple | established |
| 257332 | MI | Eaton | Ford Hwy, NE of Charlotte, MI | 2008 | 04050007 | Thornapple | established |
| 257327 | MI | Eaton | Near I-69 NE of Charlotte, MI | 2008 | 04050007 | Thornapple | established |
| 1691799 | MI | Barry | Cloverdale | 2020 | 04050007 | Thornapple | unknown |
| 1691813 | MI | Barry | Thornapple Lake | 2014 | 04050007 | Thornapple | unknown |
| 1691994 | MI | Kent | Campau Lake | 2020 | 04050007 | Thornapple | established |
| 1607168 | MI | Eaton | [No locality description provided] | 2017 | 04050007 | Thornapple | established |
| 1607169 | MI | Eaton | [No locality description provided] | 2017 | 04050007 | Thornapple | established |
| 1567303 | MI | Barry | [No locality description provided] | 2016 | 04050007 | Thornapple | established |
| 1562178 | MI | Barry | [No locality description provided] | 2014 | 04050007 | Thornapple | established |
Citation for this information:
U.S. Geological Survey, 2025,
Lythrum salicaria: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/13/2025