Cirsium ×carolorum C.Jenner Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Cirsium species Cirsium heterophyllum Name Homonyms Cirsium ×carolorum C.Jenner ex Nyman Cirsium ×carolorum C.Jenner