Betula alba subsp. verrucosa (Ehrh.) Čelak., 1871 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Betula species Betula pendula Name Homonyms Betula alba subsp. verrucosa (Ehrh.) Regel Betula alba var. verrucosa (Ehrh.) Wallr. Betula alba var. verrucosa (Ehrh.) Mérat Betula alba f. verrucosa (Ehrh.) Regel