Betula pubescens subsp. arpatica (Willid.) Asch. & Graebner Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Betula species Betula pubescens Name Homonyms Betula pubescens subsp. arpatica (Willid.) Asch. & Graebner