Avena elatior subsp. sardoa (J.A.Schmidt) Litard. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Arrhenatherum species Arrhenatherum elatius Name Homonyms Avena elatior var. sardoa (Em.Schmid) Litard. Avena elatior subsp. sardoa (J.A.Schmidt) Litard.