Betula papyracea var. cordifolia (Regel) Schelle Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Betula species Betula cordifolia Name Homonyms Betula papyracea var. cordifolia (Regel) Dippel Betula papyracea var. cordifolia (Regel) Schelle