Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1409899
| MA | Essex | Clara B. Winthrop Preserve | 2008 |
01090001
| Charles | unknown |
235099
| MA | Essex | Fish Brook at US Rt.#1, Boxford | 1958 |
01090001
| Charles | collected |
1409922
| MA | Essex | Highland Park in Salem Woods at Golf Course is trailside. herbaceous marsh | 2008 |
01090001
| Charles | unknown |
235115
| MA | Essex | Ipswich River Wildlife Sanctuary near Ipswich River,Topsfield | 1999 |
01090001
| Charles | collected |
229919
| MA | Essex | Mile Brook Swamp, Ipswich River Wildlife Sanctuary, Topsfield | 1990 |
01090001
| Charles | established |
235105
| MA | Essex | Parker River National Wildlife Refuge,Plum Island, Newburyport | 1973 |
01090001
| Charles | collected |
1409789
| MA | Essex | Saugus River, Oakland Vale, Prankers Pond, behind retail stores on Rt 1 N | 2009 |
01090001
| Charles | unknown |
235100
| MA | Essex | Topsfield, US Rt. #1 | 1958 |
01090001
| Charles | collected |
1409924
| MA | Essex | West pond edge | 2007 |
01090001
| Charles | unknown |
235107
| MA | Middlesex | Charles River (bank), Cambridge | 1975 |
01090001
| Charles | collected |
235093
| MA | Middlesex | Wakefield town, near Saugus River | 1916 |
01090001
| Charles | established |
235482
| MA | Middlesex | Watertown, along the Charles River | 2003 |
01090001
| Charles | established |
1409863
| MA | Norfolk | "Old Pond" w/ small dam in Moose Hill Reservation | 2007 |
01090001
| Charles | unknown |
235097
| MA | Norfolk | Broad Meadow, Dedham | 1943 |
01090001
| Charles | collected |
235089
| MA | Norfolk | Brookline, Gardners land | 1901 |
01090001
| Charles | established |
1409876
| MA | Norfolk | Mann's Pond - shoreline west of dam | 2008 |
01090001
| Charles | unknown |
1409840
| MA | Norfolk | Rocky Woods Reservation (TTOR) Hartford Street, Medfield | 2005 |
01090001
| Charles | unknown |
235109
| MA | Suffolk | Arnold Arboretum, Jamaica Plains (subdivision), Boston | 1982 |
01090001
| Charles | collected |
235094
| MA | Suffolk | Back Bay (subdivision), Back Bay Fens, corner of Audubon Road and Brookline Ave, Boston | 1918 |
01090001
| Charles | established |
235092
| MA | Suffolk | Back Bay subdivision, Back Bay Fens, Boston | 1916 |
01090001
| Charles | established |