]> NEBC barcode-00415918 United States of America Massachusetts Mystic River Watershed Mystic River Watershed, Middlesex Fells Reservation, near the northeast shore of swamp west of Flynn Rink, 100 yards beyond bridge over stream Bidens discoidea (Torrey & A. Gray) Britton (Torrey & A. Gray) Britton 2013-03-04 11:42:45 B. T. Hamlin