Opuntia galapageia var. inermis E.Y.Dawson Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Opuntia species Opuntia galapageia Name Homonyms Opuntia galapageia var. inermis E.Y.Dawson Opuntia galapageia var. inermis (E.Y.Dawson) Backeb.