Hieracium longifolium Lam. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Hieracium species Hieracium sonchoides Name Homonyms Hieracium longifolium Lam. Hieracium longifolium Hornem. Hieracium longifolium Schleich., 1815 Hieracium longifolium Schleich. ex Hoppe, 1823 Hieracium longifolium Christ Hieracium longifolium Schleich. ex Froel.