Sophora purpurea is the whole plant or root of the annual Asteraceae plant. Harvest in early spring, wash and use fresh or sun-dried. It has good curative effect on cholecystitis and gastritis. It is named after its purple flowers, which grow along ditches and hillsides and are scattered and concentrated. Different picking times have different medicinal effects. Only by digging at the right time can the medicinal efficacy be guaranteed. It was used to satisfy hunger in the 1950s and 1960s, and it has very good effects in treating chronic cholecystitis, gastritis, hypertension, cerebral thrombosis, heart disease and other chronic diseases. The origin of "Purple Flower" bitter greens is located in Guannan, in the northeastern part of Jiangsu Province, so it is also called Guannan purple bitter greens. The growth of "Purple Flower" bitter greens must meet the conditions of sufficient light, mild climate and abundant rainfall.