1. Coarse perennial Eurasian grass resembling oat; found on roadside verges and rough grassland and in hay meadows; introduced in North America for forage
   "Tall oat grass can grow to over five feet in height";
   - tall meadow grass, evergreen grass, false oat, French rye, Arrhenatherum elatius

Derived forms: tall oat grasses

Type of: grass

Part of: Arrhenatherum, genus Arrhenatherum