Cirsium ×serotinum Porta ex Huter, 1906 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Cirsium species Cirsium variegatum Name Homonyms Cirsium ×serotinum Porta ex Huter, 1906 Cirsium ×serotinum Porta