Alfalfa is the general name of alfalfa, commonly known as cauliflower, which is a perennial flowering plant. One of the most famous is alfalfa as a pasture. There are many kinds of alfalfa, most of which are wild medicinal materials. Alfalfa originated in Iran and is the most widely planted forage in the world today. It has been cultivated in China for more than 2000 years, and the main producing areas are in the northwest, north China, northeast China and Jianghuai basin.