Amer. J. Sci. Arts, Ser. 2, 25: 427 (1858). Type locality: USA, South Carolina, Santee Canal, H. W. Ravenel 77 (FH-Tuck - holotype; BM, ?H-NYL 38415, ?TUR-V 15152, ?US - isotypes).
Type locality: USA, South Carolina, Santee Canal, H. W. Ravenel 77 (FH-Tuck - holotype; BM, ?H-NYL 38415, ?TUR-V 15152, ?US - isotypes).