Carduus argentatus Willd. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Carduus species Carduus cephalanthus Name Homonyms Carduus argentatus L. Carduus argentatus Willd. ex Steud., 1840 Carduus argentatus Willd.