Quercus longifolia Raf. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Alsogr. Amer.: 21 (1838) Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Fagaceae genus Quercus species Quercus montana Name Homonyms Quercus longifolia Raf. Quercus ×longifolia K.Koch Quercus longifolia C.Koch Quercus longifolia Liebm.