Pursh, ?Fl. Amer. Sept. (Pursh) 1: 156. 1813; 2: 731. 1816.?, 1816.

Pursh, ?Fl. Amer. Sept. (Pursh) 1: 157. 1814?, 1814.

Pursh, ?Fl. Amer. Sept. (Pursh) 141. 1814 [Dec 1813]?, 1814.