Reference:Pennell1916b
Verbatim text: Pennell, F. W. 1916b. Notes on plants of the southern United States—II. Bull. Torrey Bot. Club 43: 409–421.
Author: Pennell, F.W.
Year: 1916b
Title: Notes on plants of the southern United States—II
Journal: Bull. Torrey Bot. Club
Volume: 43
Pages: 409–421