NPSpecies

Data Source: Bartgis, 1993;Maxon, 1935;TNC, 1999; Wiegand, 1999; Wiegand, 2001;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Wiegand, 2001: The only occurrence for Bloodleaf (Iresine rhizomatosa) reported in Maryland was successfully updated. During 1999 a total of 68 plants were counted here (from Sandy Hook, Maryland to District of Columbia line) . Only 50 plants were counted during 2000. Bloodleaf is a species with southern affinities and is found here at or near the northern extremity of its natural distribution. Nearly half of the plants showed evidence of having been trampled by hikers following a social trail out to the river. Maxon, 1935: The type of this species was collected on Plummers Island, October 3, 1915, by Paul C. Standley. 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., Park Species Data Source: Bartgis, 1993;Maxon, 1935;TNC, 1999;Wiegand, 1999;Wiegand, 2001;