Cereus eburneus var. monstrosus Salm-Dyck Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Stenocereus species Stenocereus griseus Name Homonyms Cereus eburneus var. monstrosus Salm-Dyck ex DC. Cereus eburneus var. monstrosus Salm-Dyck