Avena sempervirens Host, 1822 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Helictotrichon species Helictotrichon parlatorei Name Homonyms Avena sempervirens Bory & Chaub. Avena sempervirens Besser, 1822 Avena sempervirens Host, 1822 Avena sempervirens Vill. Avena sempervirens Ledeb., 1829 Avena sempervirens Lapeyr. ex Benth. Avena sempervirens Lapeyr.