NPSpecies

Data Source: Wiegand, 1995;Wiegand, 2001;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Bartgis, 1993: State Endangered plant, found in Potomac Fall-Line. Wiegand, 2001: Plant species currently documented from Maryland but not successfully updated at previously reported sites in the survey area (from Sandy Hook, Maryland to District of Columbia line) during this survey. Wiegand, 1999: Plant species currently documented from Maryland but not successfully updated at previously recorded sites in the gorge during this survey (from Great Falls, Maryland, downriver to the District of Columbia) . Currently listed in Maryland as endangered or endangered/extirpated. Wiegand, 1995: Two new occurrences documented in the survey area from Sandy Hook West to Cumberland, Maryland., Park Species Data Source: Wiegand, 1995; TNC, 1999; Bartgis, 1993; Wiegand, 2001;