]> NEBC barcode-00415915 United States of America Massachusetts Mystic River Watershed, Middlesex Fells Reservation, northeast side of Bellevue Pond, Medford Dike Ageratina altissima (Linnaeus) R. M. King & H. Robinson (Linnaeus) R. M. King & H. Robinson 2013-03-04 11:32:14 B. T. Hamlin