1. Mustard (scientific name: turnip? Lynn. ) also known as turnip fennel, commonly known as kohlrabi, also known as fermented grains, Hezhang cuisine, Jietou cuisine, Gentiana, kale, Braga, eggplant fruit, eggplant fruit, Yumanqing and so on.

2. Brassicaceae is a biennial herb with a height of100 cm; The root tuber is fleshy, spherical, flat or rectangular, with white skin, white or yellow root meat and no spicy taste; The basal leaves are pinnate or compound, with a small amount of loose bristles on the leaves and white sharp bristles below; Petiole has lobules; Racemes are terminal; Sepals are oblong, petals are bright yellow, oblanceolate, silique linear, and seeds are spherical. They bloom in March-April and bear fruit in May-June.