Chinese cabbage, also known as antelope horn and white flower, is the medicinal part of its seeds, which are mostly distributed in Henan, Anhui, Guangxi and other places. White-flowered rape is oblate, with a diameter of 1- 1.5mm and a thickness of about 1mm, with deep grooves at the edge. White-flowered rapeseed tastes bitter, pungent, warm and slightly toxic, and has the effects of promoting blood circulation, dredging collaterals, reducing swelling and relieving pain.