Cereus callianthus hort. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Cereus species Cereus callianthus Name Homonyms Cereus callianthus (Fuaux & Backeb.) P.J.Braun & Esteves Cereus callianthus hort. ex Schelle Cereus callianthus hort.