Ryegrass (Lolium) is a genus of nine species of tufted grasses in the Pooideae subfamily of the Poaceae family. They are characterized by bunch-like growth habits. These plants are native to Europe, Asia and northern Africa, but are widely cultivated and naturalized elsewhere. Ryegrasses are naturally diploid, with 2n = 14, and are closely related to the fescues (Festuca). Ryegrass should not be confused with rye, which is a grain crop.