Smith, G.F. 2026. 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. 781, 3 (Oct. 2026), 251–261. DOI:https://doi.org/10.11646/phytotaxa.781.3.4.