NPSpecies

Data Source: BioBlitz, 1997-Chain Bridge Flats;Wiegand, 2001b;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Wiegand, 2001b: an uncommon watchlist plant occurring in elevated areas of scour prairie and overwash savanna habitat where soils are well-drained and often dry during the growing season. Narrowleaved sundrops (Oenothera fruticosa) is infrequent, but widespread in scour prairie and overwash savanna habitat upriver from Chain Bridge. It grows in dry sandy substrate, in full sunlight, and sometimes flowers amid false blue indigo. Found at 1 site. 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.)Hamilton, 2007: See Kneiffia fruticosa, synonym for Oenothera fruticosa var. fruticosa., Park Species Data Source: BioBlitz, 1997-Chain Bridge Flats;Wiegand, 2001b