NPSpecies

Data Source: BioBlitz, 1997-Chain Bridge Flats;Cranberry Meadows, 1997;TNC, 1999; Terrell, 1970;Wiegand, 1999; Wiegand, 2001; Wiegand, 2001b; ;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Terrell, 1970: Scarce; flats along river in areas 1(Beginning of Canal in Georgetown to Chain Bridge, D. C.), 2 (Chain Bridge to Lock 10 parking area opposite Plummer's Island) Mid-late May. Cranberry Meadows, 1997: Occasional, #1599, Chain Bridge Flats above Chain Bridge. Wiegand, 2001b: A previously reported occurrence for Veiny Pea (Lathyrus venoms), listed as a highly rare plant species in D.C., was successfully updated during 1999-2000 field surveys. Several widely scattered groups, each containing more than 100 plants, were growing in rich alluvial sand in rocky and savanna habitat. Suitable habitat for veiny pea is abundant in the vicinity, so this occurrence would be more extensive than reported here.Status surveys for this species are highly recommended to fully determine its current status at Chain Bridge Flats Survey Site. Found at 2 sites. A Highly Rare plant species known to occur within the District of Columbia portion of LOCO (along the C&O Canal NHP and Potomac River from the Maryland line to Key Bridge, Washington, D.C.) Also a listed species in Maryland. Wiegand, 2001: Documented from Maryland during this survey from Sandy Hook, Maryland, to District of Columbia line.Watch List plant species, not officially listed by the State of Maryland nor by the Maryland Wildlife and Heritage Division. Wiegand, 1999: A Watch List species in Maryland, documented to occur in the gorge during this survey from Great Falls, Maryland, downriver to the District of Columbia line., Park Species Data Source: BioBlitz, 1997-Chain Bridge Flats;Cranberry Meadows, 1997;TNC, 1999;Terrell, 1970;Wiegand, 1999;Wiegand, 2001;Wiegand, 2001b;