NPSpecies

Data Source: Leeson, n.d.;Maxon, 1935;Terrell, 1970;Wiegand, 2001; Wiegand, 2001b;

Data Source: Helen Hamilton

see comments; Data Source: Helen Hamilton

Park Species Detail: Terrell, 1970: Rare; area 6 (Great Falls; islands overlooking Falls). Wiegand, 2001b: occurs in scoured habitats slightly elevated above the lowest areas along the river, and in low scour prairie and overwash savanna habitats. Buttonbush (Cephalanthus occidentalis) is widely scattered but not really abundant at this site. Found at 2 sites. A watch list (and otherwise uncommon) 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: Leeson, n.d.;Maxon, 1935;Terrell, 1970;Wiegand, 2001;Wiegand, 2001b;