Cabbage (Brassica oleracea? L.): It is an annual or biennial herb of Cruciferae and Brassica, biennial herb, covered with powdery frost. Short and stout annual stems are fleshy, unbranched, green or grayish green. The basal leaves are thick, layered into spheroids, oblate, milky white or light green.

Biennial stems are branched and have cauline leaves. The top of basal leaves is round, and the base is sharply narrowed into a very short petiole with broad wings, and the edge has wavy and inconspicuous serrations; The upper cauline leaves are ovate or oblong-ovate, and the base holds the stem; The uppermost leaf is oblong, about 4.5 cm long and about 1 cm wide, holding the stem. Racemes terminal and axillary; Flowers pale yellow, 2-2.5 cm in diameter; Pedicel 7- 15 mm long.

Sepals erect, linear and oblong; Petals are broadly elliptic, obovate or nearly round, with emarginate tips and sharply narrowed claws at the base. The claws are 5-7 mm long. Silique is cylindrical, slightly flattened on both sides, with prominent midvein and conical beak; The fruit stalks are thick and spread upright. Seeds spherical, brown. Flowering in April and fruiting in May.

Cultivated all over China for vegetable and feed. The thick juice of leaves is used to treat gastric and duodenal ulcers. It is one of the important vegetables in China. Except for Chinese kale, which originated in China, all varieties of cabbage originated from the Mediterranean Sea to the North Sea coast.

As early as 4,000-4,500 years ago, it was cultivated in ancient Rome and ancient Greece. The northeast of China is commonly known as "kohlrabi" and Yunnan is commonly known as "lotus white".