1, the oil root is a tall tree, with simple and opposite leaves, oval or oblong leaves and nearly leathery whole. Dioecious, growing at the top of lateral branches, conical; Corolla white, 4-parted, lobes oblate. Fringe is a drooping spike ornament, made of colorful feathers or velvet, which is usually hung on the four corners of curtains or the handles of Yu Pei fans.

2. Young leaves of oil root can be used as tea drinks. Its fruit is rich in oil and can be used in industrial production. Wood is hard and delicate, and it is a good tool. In the north, it is also a common grafting of osmanthus. Fringe is an ornament of stage costume.