The taxonomy and nomenclature of Kalanchoe ×vadensis [K. blossfeldiana × K. marmorata var. somaliensis] (Crassulaceae subfam. Kalanchooideae), an early nothospecies produced in The Netherlands in the 1950s
. Phytotaxa, 561(2), 199–209. https://doi.org/10.11646/phytotaxa.561.2.8