Benton, B. E., Dennis, D., Keesling, J., Barnard, P., & Witsell, T. (2025). Cypripedium candidum (Orchidaceae) discovered in Arkansas, U.S.A. Journal of the Botanical Research Institute of Texas, 19(4), 617–620. https://doi.org/10.17348/jbrit.v19.i4.1446