Avena macrostachya is a type of perennial wild oat.
“Avena macrostachya is narrowly endemic to two mountain chains in northeastern Algeria, the Aures and the Djurdjura, where it is found at high altitudes. It is taxonomically isolated within the genus, showing a number of primitive features, including perennial habit”. (Economic Botany; 1991).
Discontinued. Same as #621, AVEMA.