Cirsium horridulum f. horridulum Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Cirsium species Cirsium horridulum Name Homonyms Cirsium horridulum subsp. horridulum Cirsium horridulum f. horridulum Cirsium horridulum var. horridulum