]> NEBC barcode-00985687 United States of America Massachusetts Boston Basin Ecoregion: Mystic River Watershed. Middlesex Fells Reservation, extreme northwest corner of Lawrence Woods at gate 11, GPS 42.4395N, 71.12228W Centaurea nigra Linnaeus Linnaeus 2017-12-01 16:02:28 B. T. Hamlin