For Asteraceae
Barkley, T.M., L. Brouillet, and J.L. Strother. 2006. Asteraceae, part 1. In Flora of North America Editorial Committee. 2006a. Flora of North America north of Mexico. Volume 19, Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford Univ. Press, New York, NY. 579 pp. Google Scholar
Correll, D.S., and M.C. Johnston. 1970. Manual of the vascular plants of Texas. Texas Research Foundation, Renner, TX. Google Scholar
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C. Google Scholar
Diggs, G.M., Jr., B.L. Lipscomb, and R.J. O'Kennon. 1999. Shinners & Mahler's illustrated flora of north central Texas. Botanical Research Inst. Texas, Ft. Worth, TX. Google Scholar
Roque, N., D.J. Keil, and A. Susanna. 2009. Illustrated glossary of Compositae. Systematics, Evolution and Biogeography of the Compositae. International Association for Plant Taxonomy (IAPT). Vienna, Austria, pp.781-806. Google Scholar