NPSpecies

Data Source: Cranberry Meadows, 1997;Bartgis, 1993;Boone, 1986;TNC, 1999; Terrell, 1970;Wiegand, 1999;;;;

Data Source: Helen Hamilton

see comments; Data Source: Helen Hamilton

Park Species Detail: Terrell, 1970: (P. covillei S. Wat Infrequent in rich, often rocky, woods in areas 2 (Chain Bridge to Lock 10 parking area opposite Plummer's Island), 3 (Lock 10 to Carderock, north parking lot), 4 [Carderock to Cropley (parking area near Angler’s Inn)]. Fl. Late Ap Early May. Cranberry Meadows, 1997: LC (HH: low common?); Abundant, #1579, Chain Bridge Flats below Arizona Bridge; Abundant, Chain Bridge Flats above Arizona Bridge. Bartgis, 1993: State Endangered plant, found in Potomac Fall-Line. Wiegand, 1999: Plant species documented in the survey area (from Great Falls, Maryland, downriver to the District of Columbia) during this survey. Currently listed in Maryland as endangered or endangered/extirpated. Coville's phacelia (Phacelia ranunculacea) as found to be a fairly common and even aggressive plant species in rich floodplain forests and adjacent slopes during April and May. This state-endangered species was documented at ten (10) new sites and successfully updated at another six (6) previously known sites. Several of the occurrences numbered in the thousands of plants and were distributed over large areas of habitat. Most of the known Maryland sites for this easily overlooked, low-growing species occur in the Potomac Gorge., Park Species Data Source: Cranberry Meadows, 1997;Bartgis, 1993;Boone, 1986;TNC, 1999;Terrell, 1970;Wiegand, 1999