Cabbage (Brassica oleracea L. var. capitata L.) is a plant of the Brassicaceae and Brassica genus, and is a variant of Brassica oleracea L.. Also known as cabbage, ocean cabbage , white pimple, cabbage, cabbage , cabbage, lotus and white. Biennial herb, frosted by powder. Short and stout annual stems are fleshy, unbranched, green or gray-green. There are many basal leaves, thick in quality, layered into spheroids, oblate, 10-30 cm in diameter or larger, milky white or light green; originated from the Mediterranean coast and introduced to China in the 16th century. Cabbage has the characteristics of cold tolerance, disease resistance, strong adaptability, easy storage and transportability, high yield, and good quality. It is widely cultivated throughout China and is one of the main vegetables in spring, summer and autumn in Northeast, Northwest, and North China. .