Rye is a type of grass that is commonly grown for its edible grain. It is a cereal grain that is related to wheat and barley, and is known for its hardiness and ability to grow in poor soil conditions. Rye grain is commonly used in breads, cereals, whiskey, and animal feed. Rye bread is known for its distinct flavor and dense texture. Rye is also used as a cover crop to prevent erosion and improve soil health.