Clark, J. L., and L. Clavijo. “Columnea Versicolor, a New Species of Gesneriaceae from the Cordillera Occidental in the Colombian Andes”. Journal of the Botanical Research Institute of Texas, vol. 20, no. 1, Apr. 2026, pp. 69-74, doi:10.17348/jbrit.v20.i1.1464.