Hieracium calcareum Willd. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Hieracium species Hieracium rupestre Name Homonyms Hieracium calcareum Bernh. ex Hornem. Hieracium calcareum Willd. ex Froel. Hieracium calcareum Willd. Hieracium calcareum Bernh.