According to Baidu Encyclopedia, sorghum and gramineous sorghum are annual tall herbs. Culms are different in height, stout and erect, with supporting roots at the basal nodes; The leaves are wide and long, and the leaf sheath is hairless or slightly white; Ligule is hard, the apex is round, and the edge is ciliated; Leaf blade linear to linear-lanceolate, base rounded or slightly auriculate, surface dark green; Panicle is loose; Both glumes are leathery, and both sides of the glume are flat and convex, yellow-green at first, and dark brown after maturity; Style divided, stigma broom-like. The flowering and fruiting period is from June to September. Sorghum originated in Africa and was introduced to China from India. Mainly distributed in Asia, Africa and America. As early as 3,000 years ago, sorghum was planted in the Yellow River Basin and other places in China. Sorghum is a warm crop with strong adaptability, drought resistance and waterlogging resistance, so the cutting area is wide; Afraid of freezing injury, plant will die when the lowest ground temperature reaches -3℃ when sowing in early spring. Seedlings are most sensitive to light, so the growth period of northern varieties moving south is shortened, and the growth period of southern varieties moving north is prolonged.

Sorghum is known as "the essence of five characters, the length of a hundred grains" in Food Materia Medica. Its harvest area and total output are second only to wheat, rice and corn, and it is one of the four major cereal crops in the world. Sorghum is rich in various nutrients and is mainly used for brewing and making food and feed. Traditional Chinese medicine believes that sorghum is sweet, flat and slightly cold, which has the function of cooling blood and detoxifying, and can be used as medicine to prevent and treat many diseases. Sorghum is coarse grain and has a bad taste. Contains tannins, and people with constipation eat less or not.