Citrus ×aurantium subsp. japonica (Thunb.) Hook. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Sapindales family Rutaceae genus Citrus species Citrus japonica Name Homonyms Citrus aurantium var. japonica (Thunb.) Hook.fil. Citrus ×aurantium subsp. japonica (Thunb.) Engl.