NPSpecies

Data Source: Cranberry Meadows, 1997;Bartgis, 1993;Bilton, 1991 Maxon, 1935;TNC, 1999; Terrell, 1970;Wiegand, 2001; Wiegand, 2001b;

Data Source: Helen Hamilton

see comments; Data Source: Helen Hamilton

Park Species Detail: Terrell, 1970: Frequent, sometimes locally abundant, in low woods; areas 2 (Chain Bridge to Lock 10 parking area opposite Plummer's Island), ), 7 (Great Falls to Swain’s Lock), 8 [Swain’s Lock to Pennyfield Lock (north end)], 9 (Pennyfield Lock to Seneca). Fl. Mid April-early May. Cranberry Meadows, 1997; common, Cranberry Meadows, #1572; Occasional, Chain Bridge Flats below Arizona Bridge. Bilton, 1991: beginning to flower. Maxon, 1935: Rare. Bartgis, 1993: Found in Washington County, Ferry Hill. Wiegand, 2001b: Found in Fletchers Floodplain 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.), Park Species Data Source: Cranberry Meadows, 1997;Bartgis, 1993;Bilton, 1991-Ferry Hill;Maxon, 1935;TNC, 1999;Terrell, 1970;Wiegand, 2001;Wiegand, 2001b;