山桐子(Idesia polycarpa Maxim)又叫山梧桐,属于大风子科。其木材纹理直,结构细,质地轻软,易加工,供板料、器具、装修、箱板等用材。种子含油率25.95—29％,果肉含油32.82—43.6％,油可制肥皂及润滑油,并可作桐油代用品。树形美观,每到秋季果实累累、艳红喜人,为优良的行道和庭园观赏树。山桐子为落叶乔木,我省分布的主干通直,顶端优势好,高达10—15米,树皮灰白 Itaewon (Idesia polycarpa Maxim), also known as Indus, belonging to the branch of the big wind. The wood texture straight, fine structure, light and soft texture, easy processing, for sheet metal, utensils, decoration, box board and other timber. Seed oil content of 25.95-29%, 32.82-43.6% of pulp oil, oil soap and lubricants, and for tung oil substitutes. Beautiful tree, every fall fruit, brilliant red gratifying, for the good sidewalk and garden ornamental trees. Hill Tongzi deciduous trees, the trunk of our province straight, the top edge is good, up to 10-15 meters, bark gray