千年桐(木油桐)Vernicia montanaLour.)属大戟科油桐属植物。分布于长江以南各省,其种子含有丰富桐油,虽然油质略次于油桐(V,fordii),但树体高大,单株产量高,结实寿命长,是有发展前途的工业用木本油料树种。 据调查,千年桐无绝对的雄株,大部分是雌雄同株的。雌花是先长新梢后再显蕾开 Millenia Tong (wood tung) Vernicia montanaLour.) Is Euphorbia ointment. It is distributed in the provinces of the south of the Yangtze River and its seeds are rich in tung oil. Although the oil quality is slightly inferior to that of the oil tung tree (V, fordii), its tree body is tall, its yield per plant is high, and its longevity is strong. Oil tree species. According to the survey, there is no absolute male Millet Tong, mostly monoecious. Female flower is the first long after the new buds were blooming