Ferocactus viridescens var. viridescens Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Ferocactus species Ferocactus viridescens Name Homonyms Ferocactus viridescens subsp. viridescens Ferocactus viridescens var. viridescens