Weakley, Alan S., Derick B. Poindexter, Hannah C. Medford, Alan R. Franck, Keith A. Bradley, Jimi Sadle, and John Michael Kelley. “Studies in the Vascular Flora of the Southeastern United States. VII”. Journal of the Botanical Research Institute of Texas 15, no. 1 (July 23, 2021): 23–56. Accessed December 4, 2023. https://journals.brit.org/jbrit/article/view/1049.