NPSpecies

Data Source: Bartgis, 1993;Maxon, 1935;Terrell, 1970

Data Source: Helen Hamilton

see comments; Data Source: Helen Hamilton

Park Species Detail: Terrell, 1970: Infrequent in rich wood Areas 2 (2 (Chain Bridge to Lock 10 parking area opposite Plummer's Island)), 3 (3 (Lock 10 to Carderock, north parking lot), ), 4 [Carderock to Cropley (parking area near Angler’s Inn)]. Fl. Begins in June, but leaves conspicuous in spring, be To wither in mid May, then disappear before flowering., Park Species Data Source: Bartgis, 1993;Maxon, 1935;Terrell, 1970;