]> NEBC barcode-00898257 United States of America Massachusetts Boston Basin Ecoregion: Mystic River Watershed, Middlesex Fells Reservation, south of Cross Fells Trail west of Flynn Rink, swamp on north end of Wrghts Pond Eutrochium dubium (Willdenow ex Poiret) E. E. Lamont (Willdenow ex Poiret) E. E. Lamont 2017-01-13 15:21:10 W. T. Kittredge & D. H. Goldman