Cirsium rhiphaeum FontQuer Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Ptilostemon species Ptilostemon rhiphaeus Name Homonyms Cirsium rhiphaeum (Pau & Font Quer) Font Quer Cirsium rhiphaeum FontQuer