Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1669391
| MA | Barnstable | Cape Cod; Mosswood Cemetery, W of Putnam Road; Cotuit, town of Barnstable; a garden escape | 2002 |
01090002
| Cape Cod | unknown |
1660251
| MA | Hampshire | Hadley | 2006 |
01080201
| Ashuelot River-Connecticut River | unknown |
1661745
| MA | Hampshire | University of Massachusetts Campus, Amherst | 1979 |
01080201
| Ashuelot River-Connecticut River | unknown |
1661713
| MA | Middlesex | Cambridge | 1913 |
01090001
| Charles | unknown |
1660011
| MA | Middlesex | Concord | 2000 |
01070006
| Merrimack River | unknown |
1661501
| MA | Suffolk | Arnold Arboretum | 2007 |
01090001
| Charles | unknown |
1661525
| MA | Suffolk | Arnold Arboretum | 2009 |
01090001
| Charles | unknown |
1660217
| MA | Worcester | New Braintree | 2005 |
01080204
| Chicopee River | unknown |
1661747
| MA | Worcester | North Brookfield | 1948 |
01080204
| Chicopee River | unknown |