Betula glandulifera (Regel) B.T.Butler Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Betula species Betula pumila Name Homonyms Betula glandulifera (Regel) E.J.Butler Betula glandulifera (Regel) B.T.Butler