Zea mays subsp. gracillima Körn. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Zea species Zea mays Name Homonyms Zea mays var. gracillima Körn. ex Hitchc. Zea mays var. gracillima Körn. Zea mays subsp. gracillima Körn.