There are seven main varieties of mustard, including potherb mustard, datura, oil mustard, squash, and large mustard, etc. Among them, potherb mustard is also known as snow red and snow cabbage, with the basal leaves presenting an inverted lanceolate or oblong shape, and datura's fleshy tubers, which are thick and compact, presenting an oblong spherical shape, and oil mustard, which is native to Asia, and is cultivated in the northern and southern regions of China.

1, potherb

Potherb is a variant of Brassica juncea mustard, plant height up to 150 centimeters, the leaf blade grows from the base, presenting an inverted lanceolate or oblong oblong inverted lanceolate, the edge of the leaf blade has an irregular serration, potherb is grown and matured in the month of May-June every year.

2, big head cabbage

big head cabbage belongs to one of the varieties of mustard, the plant's caudex is fleshy, thick and sturdy, big head cabbage's base presents oblong globular, the outer skin and the root flesh is yellowish-brown, the leaf blade presents oblong ovate, the length of 20-30 cm, the edge of the leaf has a coarse tooth.

3, oil mustard

oil mustard belongs to the mustard, the plant's main lateral roots are distributed in the 30 cm of soil, the leaf blade grows in the shortened stem, leaf shape for the shape of elliptic, oval, inverted ovoid, oil mustard is native to Asia, in the north and south of the region of our country are cultivated.