Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
274886
| CT | Litchfield | Indian Lake, Sharon, CT. Growing in 1.5 m of water | 2009 |
01100005
| Housatonic | collected |
274889
| CT | Litchfield | Merriman Pond, Watertown, CT. Growing on silt in 15 cm of water. | 2005 |
01100005
| Housatonic | collected |
242047
| CT | Litchfield | Northfield Pond | 1999 |
01100005
| Housatonic | established |
234928
| CT | New Haven | Long Meadow Pond, Middlebury town | 2000 |
01100005
| Housatonic | established |