Weakley, A. S., Poindexter, D. B., Medford, H. C., Franck, A. R., Bradley, K. A., Sadle, J. and Kelley, J. M. (2021) “Studies in the vascular flora of the southeastern United States. VII”, Journal of the Botanical Research Institute of Texas, 15(1), pp. 23-56. doi: 10.17348/jbrit.v15.i1.1049.