Cactus melocactus Vell. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Coleocephalocereus species Coleocephalocereus fluminensis Name Homonyms Cactus melocactus L. Cactus melocactus Vell. Cactus melocactus Vell.