NPSpecies

Data Source: BioBlitz, 1997-Chain Bridge Flats;Bilton, 1991 Maxon, 1935;Terrell, 1970;Wiegand, 2001; Wiegand, 2001b; ;;

Data Source: Helen Hamilton Legacy NPSpecies information may no longer be applicable, please remove if it is not applicable. In legacy NPSpecies Cultivation value was Not cultivated with comment: Data Source: Helen Hamilton

see comments; Data Source: Helen Hamilton

Park Species Detail: Terrell, 1970: Frequent in woods; areas 1(Beginning of Canal in Georgetown to Chain Bridge, D. C.), 2 (Chain Bridge to Lock 10 parking area opposite Plummer's Island), 4 [Carderock to Cropley (parking area near Angler’s Inn)], 8 [Swain’s Lock to Pennyfield Lock (north end)], 9 (Pennyfield Lock to Seneca). Fl. April, May. Bilton, 1991: leaves only. Maxon, 1935: Species included on the strength of satisfactory records, but no specimen is preserved., Park Species Data Source: BioBlitz, 1997-Chain Bridge Flats;Bilton, 1991-Ferry Hill;Maxon, 1935;Terrell, 1970;Wiegand, 2001;Wiegand, 2001b;