NPSpecies

Data Source: Bartgis, 1993;Lea, 2000; TNC, 1999; Terrell, 1970; NCRN Graminoid Inventory - Engelhardt et al., 2008

Data Source: Helen Hamilton

see comments; Data Source: Lea, 2000

Park Species Detail: Wiegand, 2001: Plant species currently considered to be extirpated from Maryland previously reported from the survey area (from Sandy Hook, Maryland to District of Columbia line) but not successfully updated during 1999-2000 surveys. Terrell, 1970: Woods in area 3 (3 (Lock 10 to Carderock, north parking lot), ); fl. Early May. Lea, 2000: Carex aggregata MacKenzie (Glomerate Sedge)Frequent.open areas in dry woods and, less commonly, on floodplains. Also in disturbed soil, such as along C & 0 Canal towpath. This species has been listed as historical for Maryland (Maryland Natural Heritage Program, 1994). It has recently been found to be a relatively common, but often misidentified or overlooked, species in the state. Mid-May to mid-June. 484,1479 (US); 1488 (MARY); 1561 (GMUF, Grfa); 870, 1020, s.n. (Tawes); s.n. (Aacc). Wiegand, 1999: Currently considered to be extirpated from Maryland, previously reported from Potomac Gorge, but not successfully updated during the course of this survey (from Great Falls, Maryland, downriver to the District of Columbia)., Park Species Data Source: Bartgis, 1993;Lea, 2000;TNC, 1999;Terrell, 1970; Wiegand, 2001;