Betula oycowiensis Laestad. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Betula species Betula oycowiensis Name Homonyms Betula oycowiensis Besser Betula oycowiensis Laestad. ex Regel, 1868 Betula oycowiensis Rchb. Betula oycowiensis Laestad.