Keener, B. R., and G. Todia. “A New Hexastylis (Aristolochiaceae) With Uncertain Origin in the Southeastern U.S.A., Discovered through Social Media”. Journal of the Botanical Research Institute of Texas, Vol. 15, no. 2, Dec. 2021, pp. 319-25, doi:10.17348/jbrit.v15.i2.1151.