Smith, G.F. (2026) Infrageneric nothotaxa recognised in Kalanchoe (Crassulaceae [subfam. Cotyledonoideae] tr. Kalanchoeae): new names published at the ranks of nothosubgenus, nothosection, and nothoseries. Phytotaxa 781 (2): 137–150. https://doi.org/10.11646/phytotaxa.781.2.4