Pilocereus celsianus Lem. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Oreocereus species Oreocereus celsianus Name Homonyms Pilocereus celsianus Lem. ex Salm-Dyck Pilocereus celsianus Lem.