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Kalanchoe ×trageri, at last a name for K. blossfeldiana × K. pumila (Crassulaceae subfam. Kalanchooideae), a horticulturally successful nothospecies

. Phytotaxa. 550, 1 (Jun. 2022), 45–58. DOI:https://doi.org/10.11646/phytotaxa.550.1.3.