Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
235111
| MA | Essex | West Newbury, Merrimack River along edge of Indian River inlet | 1988 |
01070006
| Merrimack River | collected |
235116
| MA | Middlesex | Lexington town, unspecified location | 2002 |
01070006
| Merrimack River | collected |
1409912
| MA | Middlesex | On raised trail between Cattail Pond and Fowle Brook. áPark at Farmer's entrance off Lexington St. áWalk straight ahead. áAt "T" turn right. áPlant on right, marsh side | 2005 |
01070006
| Merrimack River | unknown |