References

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

Powell, A.M. and R.D. Worthington. 2018. Flowering plants of Trans-Pecos Texas and adjacent areas. Sida, Bot. Misc. 49. Botanical Research Institute of Texas, Fort Worth, Texas, U.S.A. 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