Betula papyrifera f. papyrifera Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Betula species Betula papyrifera Name Homonyms Betula papyrifera var. papyrifera Betula papyrifera f. papyrifera Betula papyrifera subsp. papyrifera