Verbatim text: Harms, V. L. 1970. Heterotheca. In: D. S. Correll and M. C. Johnston. 1970. Manual of the Vascular Plants of Texas. Renner, Texas. Pp. 1563–1569.
Author: Harms, V.L.
Year: 1970
Title: Heterotheca
Editor: Correll, D.S.Johnston, M.C.
Book title: Manual of the Vascular Plants of Texas
Pages: 1563–1569