Narayanan, M. K. R., J. P. Joseph, N. A. Kumar, M. Sivadasan, and A. H. Alfarhan. “Impatiens theuerkaufiana (Balsaminaceae), a New Scapigerous Species from the Western Ghats, India”. Phytotaxa, vol. 83, no. 1, Mar. 2013, pp. 54–60, doi:10.11646/phytotaxa.83.1.3.