Pl@ntNet seems to think its Elymus caninus:
Elymus caninus (L.) L.167 122 observations
Bearded couch, Bearded wheatgrass, Fibrous wheatgrass, Awned wheat grass, Bearded couchgrass, Bearded Wheat Grass, Fibrous wheat grass, Fibrous-rooted wheat grass, Tufted couch, Bearded Wild Rye, Bearded...