This name is a synonym of Avena sterilis subsp. atherantha (C. Presl) H. Scholz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25510589) with original publication details: Cyper. Gramin. Sicul. 30 1820.
This name was in version 1 of The Plant List, record tro-25510589, and has not been changed.