Carduus tauricus Boeber Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Ptilostemon species Ptilostemon echinocephalus Name Homonyms Carduus tauricus Klokov Carduus tauricus Boeber ex Georgi Carduus tauricus Boeber