Phyllocactus guyanensis Brongn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Epiphyllum species Epiphyllum oxypetalum Name Homonyms Phyllocactus guyanensis Brongn. ex Labour. Phyllocactus guyanensis Brongn.