伯乐树Bretscheidera sinesis Hemsl又叫钟萼木、南华木,系单科单属单种。为我国特有的珍稀濒危树种,被列为国家二级保护对象。伯乐树为落叶大乔木,高可达20米,胸径60至100厘米,是优良的用材树种,又是珍贵观赏树种,兼有药用价值,可治筋骨痛。种子含油率为20.37%。原产我国云南东部、广东、广西、贵州、四川、湖南、湖北、江 Bole tree Bretscheidera sinesis Hemsl also known as bell calyx wood, South China wood, a single family is a single species. For our unique rare and endangered species, was listed as the national secondary protection object. Bole tree deciduous trees, up to 20 meters high, diameter 60 to 100 cm, is an excellent timber species, but also the precious ornamental tree species, both medicinal value, can cure bones and pain. Seed oil content of 20.37%. Native of eastern Yunnan in our country, Guangdong, Guangxi, Guizhou, Sichuan, Hunan, Hubei, Jiang