Crataegus oxyacantha Pennant Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Crataegus species Crataegus monogyna Name Homonyms Crataegus oxyacantha L. Crataegus oxyacantha Walter Crataegus oxyacantha Pennant Crataegus oxyacantha Thuill.