G. F. Smith, “Revisiting the nomenclature and taxonomy of the Malagasy Kalanchoe uniflora (K. subg. Alatae; Crassulaceae subfam. Kalanchooideae), which has Kitchingia uniflora as its basionym, and its homotypic and heterotypic synonyms”, Phytotaxa, vol. 645, no. 1, pp. 66–76, Apr. 2024.