Lolium temulentum, typically known as darnel, poison darnel, darnel ryegrass or cockle, is an annual plant of the genus Lolium within the family Poaceae. The plant stem can grow up to one meter tall, with inflorescence in the ears and purple grain.
Perennial ryegrass uses extend from using as a pasture grass or as sod for the home lawn. It is considered the best cool season perennial pasture grass in many areas. Planting perennial ryegrass for pasture has many benefits.