Opuntia arkansana Engelm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Opuntia species Opuntia humifusa Name Homonyms Opuntia arkansana Engelm. ex Hirscht Opuntia arkansana J.A.Purpus, 1925 Opuntia arkansana Engelm.