Crataegus pinnatifida f. betulifolia Nakai Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Crataegus species Crataegus pinnatifida Name Homonyms Crataegus pinnatifida f. betulifolia Nakai Crataegus pinnatifida f. betulifolia Nakai ex T.Kawamoto