]> NEBC barcode-00415901 United States of America Massachusetts Boston Basin Ecoregion: Mystic River Watershed. Middlesex Fells Reservation, between gates 25 and 26 on west side of Fellsway West (Route 28) Persicaria extremiorientalis (Voroschilov) Tzvelev (Voroschilov) Tzvelev 2013-03-01 17:04:55 W. T. Kittredge