Smith, G.F. 2023. Taxonomy and nomenclature of Kalanchoe tomentosa (Crassulaceae subfam. Kalanchooideae), a variable, completely hairy species from Madagascar. Phytotaxa. 609, 4 (Aug. 2023), 289–300. DOI:https://doi.org/10.11646/phytotaxa.609.4.5.