Morus bombycis var. angustifolia Koidz. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Moraceae genus Morus species Morus alba Name Homonyms Morus bombycis var. angustifolia Koidz. Morus bombycis subsp. angustifolia Koidz.