Shtein, R. & Smith, G.F. (2021)

Kalanchoe torrejacqii (Crassulaceae subfam. Kalanchooideae), a new species in K. subg. Bryophyllum from the Namorona River valley, Madagascar

. Phytotaxa 498 (3): 205–212. https://doi.org/10.11646/phytotaxa.498.3.6