Verbatim text: Kirkman, L. K. 1981. Taxonomic revision of Centratherum and Phyllocephalum (Compositae: Vernonieae). Rhodora 83: 1–24.
Author: Kirkman, L.K.
Year: 1981
Title: Taxonomic revision of Centratherum and Phyllocephalum (Compositae: Vernonieae)
Journal: Rhodora
Volume: 83
Pages: 1–24