Avena ausserdorferi Asch. & Graebn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Helictochloa species Helictochloa pratensis Name Homonyms Avena ausserdorferi Asch. & Graebn. Avena ausserdorferi (Asch. & Graebn.) Dalla Torre & Sarnth.