Ningxia cuisine is chilling. Taking advantage of the local climate in Ningxia, the temperature difference between day and night, sunshine, soil, etc. have formed a unique taste of Ningxia cuisine which is loved by Lingnan people, and its coldness is stronger than that of Guangdong cuisine. Chinese flowering cabbage, also known as Brassica campestris, is an annual or biennial herb. Chinese flowering cabbage is a variety of Brassica campestris subspecies in Brassica of Cruciferae. Shallow roots, short stems before bolting, green, wide oval or oval leaves, wavy leaves, green or yellow-green leaves; Petiole is light green. The cross section of the pumping flower stem is round, yellow-green or green, and the flower stems and leaves are small and oval. The lower part of the flower stem has a short petiole and the upper part has no petiole.