(Scientific name: Euonymus japonicus. ) Small trees of Celastraceae, 6 meters high. The leaves are ovoid, ovoid or narrow oval, 4-8 cm long and 2-5 cm wide, with a long and sharp apex, a wide wedge-shaped or nearly round base, serrated edges, and sometimes extremely deep and sharp; Petiole is usually slender, but sometimes short. Pale green or yellowish green, about 8 mm in diameter; Pedicel 2. 5-4 mm long; Stamens and anthers are purple-red, filaments are slender, melons are centered, and the peel is pink when mature; The seeds are oval, the seed coat is brown, the aril is orange-red, the seeds are all wrapped, and there is often a small mouth at the top after maturity. The origin starts from Heilongjiang in the north, including the provinces of North China and Inner Mongolia, the provinces on the south bank of the Yangtze River in the south and Gansu in the west. Except Shaanxi, Southwest China and Guangdong, it is found in all other provinces and regions, but it is often cultivated in the south of the Yangtze River. Distributed in the Great Ussuri region, southern Siberia and the Korean Peninsula. [ 1] ? Plant wood can be used for carving utensils and joinery; Bark contains hard rubber, and the oil content of seeds is above 40%, which can be used as industrial oil. ?

Chinese name Bai Du?

Latin scientific name Euonymus lanceolatus.

Don't call it silk cotton wood, night flower and Euonymus North China.