The stem is elongated and hollow, upright, the upper part is branched, and the height is 80 to 150 cm. The leaves are 3-4 times winged compound leaves, the lobule is oval and thin, the depth of the edge cuts varies greatly, and the back side of the leaves becomes white. The leaves on the stems alternate, and the lower part of the petiole is pale and swells like a bag. A double inflorescence is attached to the top of the stem or branched tip. The flower is a white five-petal flower, and the petal has a broad ovate shape with no teeth. There are almost no total pieces under the inflorescence, and there are many thin pieces under the inflorescence. The fruits are wide oval and have wide and thin side wings. The spine ridges of the fruits and vegetables are vein-like, and there are one oil pipe under each back groove on the surface side and two on the synthetic surface where the fruits and fruit meet.