Hieracium venosum f. retusum (Froel. ex DC.) Zahn Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Hieracium species Hieracium venosum Name Homonyms Hieracium venosum f. retusum (Froel. ex DC.) Zahn Hieracium venosum var. retusum (Froel. ex DC.) Fr.