Verbatim text: Powell, A. M. 1969. Taxonomy of Perityle, section Pappothrix (Compositae–Peritylanae). Rhodora 71: 58–93.
Author: Powell, A.M.
Year: 1969
Title: Taxonomy of Perityle, section Pappothrix (Compositae–Peritylanae)
Journal: Rhodora
Volume: 71
Pages: 58–93