NPSpecies

Data Source: Bilton, 1991 Leeson, n.d.;Maxon, 1935;Wiegand, 2001; Wiegand, 2001b;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Wiegand, 2001b: occurs in scoured habitats slightly elevated above the lowest areas along the river, and in low scour prairie and overwash savanna habitats. Swamp milkweed (Asclepias incarnata) was seen at three places in this survey area. This species occurs frequently in wet, open-canopy habitats next to the shoreline further upriver and should be expected to occur at various places in appropriate habitat at Chain Bridge Flats. An uncommon plant species occurring in scoured habitats slightly elevated above the lowerst areas along the river, and in patches of low scour prairie and overwash savanna habitats. Found in Fletchers Floodplain Survey Site. Found at 5 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: Bilton, 1991-Ferry Hill;Leeson, n.d.;Maxon, 1935;Wiegand, 2001;Wiegand, 2001b;