Smith, G. F. “A New Taxonomic Status For, and Expansion Of, Kalanchoe Sect. Rhombopilosae, As K. Ser. Rhombopilosae, in K. Sect. Stellatopilosae, Included in K. Subg. Calophygia (Crassulaceae [subfam. Cotyledonoideae] Tr. Kalanchoeae)”. Phytotaxa, vol. 781, no. 3, Oct. 2026, pp. 251-6, doi:10.11646/phytotaxa.781.3.4.