Annual ryegrass

Annual ryegrass is a common name for several species of ryegrass and may refer to:


 * Lolium multiflorum, known as "annual ryegrass" in the United States, Canada and the United Kingdom and grown as a cover crop
 * Lolium rigidum, known as "Wimmera ryegrass" in Australia, and considered a weed    when present as a contaminant in field crops but is quite productive for livestock grazing