Carduus cernuus L. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Carduus species Carduus cernuus Name Homonyms Carduus cernuus Steud., 1821 Carduus cernuus Bertol. Carduus cernuus (L.) Patrin ex Ledeb. Carduus cernuus (L.) Patrin Carduus cernuus L. Carduus cernuus (L.) Raeusch.