NPSpecies

Data Source: Bartgis, 1993;Killip, 1953; TNC, 1999; Wiegand, 1999; Wiegand, 2001; Wiegand, 2001b; ;;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Bartgis, 1993: State Endangered plant, found in Potomac Fall-Line. Wiegand, 2001b: A previously reported occurrence for Winged loosestrife (Lythrum alatum), listed as a highly rare plant species in D.C., was successfully updated during 1999-2000 field surveys. Eleven flowering and fruiting plants were seen in a 5x10 meter area, Suitable habitat for winged loosestrife is abundant in the vicinity, so this occurrence could 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 1 site. 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: Plant species documented in the survey area (from Sandy Hook, Maryland to District of Columbia line) during this survey. Wiegand, 1999: Plant species documented in the survey area (from Great Falls, Maryland, downriver to the District of Columbia) during this survey. Currently listed in Maryland as endangered or endangered/extirpated., Park Species Data Source: Bartgis, 1993;Killip, 1953;TNC, 1999;Wiegand, 1999;Wiegand, 2001;Wiegand, 2001b;