Cactus sericeus Gillies Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Opuntia species Opuntia sulphurea Name Homonyms Cactus sericeus Gillies ex Loudon Cactus sericeus Gillies Cactus sericeus Gillies ex G.Don