28 August 2009.
North Carolina, United States
Locality: Along old Jenkins Road, north of intersection with Hopson Road (site of future Triangle Expressway), Research Triangle Park, Durham County.
Coordinates: 35.8783, -78.8678
(Map it)
Elevation: 107m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Old roadbed on diabase dike. Various slopes. Dark clay soil.
Number of plants sampled: 10
Associated species: Carya, Cercis canadensis, Quercus alba, Q. marilandica, Q. stellata, and Viburnum rafinesquianum.
Comment: Population of approximately 50 plants in 4 acres. Land owned by EPA.
Collector(s):