Guangdong is also called Huangpiya. Also known as oil skin, oil plum, goose skin fruit, yellow light, yellow batch, yellow marble and king jar. Fruit is rich in sugar, organic acids, pectin, vitamin C, volatile oil, flavonoid glycosides and so on. Chinese name: Clausena: Botany: Angiosperms: Dicotyledonous Plants: Sapindaceae: Rutaceae: Clausena Species: Clausena fruits can be eaten raw or processed into sauces, preserves, drinks, sweets, etc. Both peel and stone can be used as medicine, and the peel tastes bitter and has diuretic and detumescence effects; The stone has the effects of promoting qi circulation, relieving pain, invigorating stomach and reducing swelling, and is mainly used for treating stomachache, dysmenorrhea and rheumatic bone pain.