Avena cavanillesii Lag. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Varied. Ci. 2(4): 39 (1805) Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Celtica species Celtica gigantea Name Homonyms Avena cavanillesii Lag. Avena cavanillesii Bluff, Nees & Schauer Avena cavanillesii W.D.J.Koch Avena cavanillesii Roem. & Schult.