tall oat grass
Quick Summary
Tall oat grass, scientifically known as Arrhenatherum elatius, is a perennial Eurasian grass that resembles true oats. It has been introduced to North America, particularly for use as forage in moist soils. This species is part of the genus Arrhenatherum, which includes several tall grasses native to temperate Europe and Asia.12
While valuable as a pasture grass, tall oat grass can also be considered a weed, especially in areas outside its native range. A variety called onion couch (A. elatius, variety bulbosum) is noted for its bulblike stems and is a noxious weed.2
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