Hieracium canescens Griseb., 1852 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Hieracium species Hieracium porrectum Name Homonyms Hieracium canescens Link, 1822 Hieracium canescens Schleich. Hieracium canescens Griseb., 1852 Hieracium canescens Fr.