Atlas of the vascular flora of the Carolinas
Radford, A.E., Ahles, H.E., Bell, C.R.
Atlas of the vascular flora of the Carolinas - Raleigh 1965 - 1-207 p. - North Carolina Agricultural Ex .
Atlas of the vascular flora of the Carolinas - Raleigh 1965 - 1-207 p. - North Carolina Agricultural Ex .