NPSpecies

Data Source: Bartgis, 1993;TNC, 1999; Wiegand, 1999; Wiegand, 2001; Wiegand, 1995; ;;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Wiegand, 2001: Six new and seven previously reported occurrences for Hairy wild-petunia (Ruellia humilis) were documented (from Sandy Hook, Maryland to District of Columbia line). These ail occur in the gorge between Falls Island and Cropley Uplands and likely function as a single, scattered population. The hairy wild-petunia occurs in this area as scattered groups containing between 20 and 100 plants each. Total population observed in the Potomac Gorge does not exceed 600 plants.Outside the Potomac Gorge in Maryland, this species has been reported from only a single, very small occurrence in Washiington County (Wiegand 1995 field form). Bartgis, 1993: State Endangered extirpated plant, 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. Wiegand, 1995: One new occurrence documented in the survey area from Sandy Hook West to Cumberland, Maryland., Park Species Data Source: Bartgis, 1993;TNC, 1999;Wiegand, 1999;Wiegand, 2001;Wiegand, 1995;