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乌桕(Sapium sebiferum(L.)Roxb)别名棬籽、木梓、蜡蛹树、籽桕。原产我国,是主要的木本油料树种之一。鸟桕在我国分布于北纬18°31′～36°00′,东经99°00′～121°40′,长江流域诸省为中心分布区。我区绝大部分地区都适宜于乌桕生长,较集中地分布在海拔800米以上的农耕地及五旁四坎,群众裁培乌桕的历史悠久。在长期的自然杂交和人为选育的双重作用下,形成了许多适应于一定自然条件和栽培条件的地方品种,其生态、生物学上的差异,导致了各品种间
Sapium (Sapium sebiferum (L.) Roxb) Alias Sapium sepium, wood Zi, wax pupa tree, seed 桕. Originated in China, is one of the major woody oil species. Birds in China in the distribution of latitude 18 ° 31 ’~ 36 ° 00’, longitude 99 ° 00 ’~ 121 ° 40’, the Yangtze River Basin provinces as the center distribution. Most areas in our district are suitable for the growth of black kuala, more concentrated in the agricultural land above 800 meters above sea level and Wukuanshikan, the masses have a long history of cultivation. Under the double role of long-term natural hybridization and artificial breeding, a lot of local varieties adapted to certain natural conditions and cultivation conditions have formed, and their ecological and biological differences have led to inter-species differences