| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 252895 | IN | LaGrange | Pretty Lake | 2007 | 04050001 | St. Joseph | established |
| 244715 | IN | Steuben | Steuben County | 2008 | 04050001 | St. Joseph | collected |
| 244710 | IN | Porter | Porter County | 2008 | 04040001 | Little Calumet-Galien | collected |
| 244711 | IN | St. Joseph | St. Joseph County | 2008 | 04050001 | St. Joseph | collected |
| 244713 | IN | Elkhart | Elkhart County | 2008 | 04050001 | St. Joseph | collected |
| 244720 | IN | Allen | Allen County | 2008 | 04100005 | Upper Maumee | collected |
| 244725 | IN | Adams | Adams County | 2008 | 04100004 | St. Marys | collected |
| 1247521 | IN | Lake | Lake County | 1976 | 04040001 | Little Calumet-Galien | established |
Citation for this information:
U.S. Geological Survey, 2025,
Lysimachia nummularia: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/12/2025