Avena macrostachya Coss. & Durieu in Bull. Soc. Bot. France 1: 318. 1854
Avena macrostachya in Bull. Soc. Bot. France 1: 318. 1854
is basionym for Helictotrichon macrostachyum in Blumea 3: 430. 1940
Avena macrostachya in Bull. Soc. Bot. France 1: 318. 1854