Hieracium caesium var. pexum Johanss. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Hieracium species Hieracium pexum Name Homonyms Hieracium caesium var. pexum Johanss. Hieracium caesium var. pexum Johanss. ex Dahlst. Hieracium caesium subsp. pexum (Johanss. ex Dahlst.) Zahn