香椿,又名香椿芽、香椿头等,生长于东亚与东南亚地区,北从北朝鲜南至泰国、印尼等地,原产中国,分布于长江南北的广泛地区,为楝科、落叶乔木,雌雄异株,叶呈偶数羽状复叶,圆锥花序,两性花白色,果实是椭圆形蒴果,翅状种子,种子可以繁殖。树体高大,树长可至25米高,树干直径可达70厘米,其羽状复叶约为50～70厘米长、30～40厘米宽,叶片约为9～15厘米长、2.5～4厘米宽,是园林绿化的优选树种。 Toon, also known as Toona sinensis, toon first class, grow in East Asia and Southeast Asia, north from North Korea South to Thailand, Indonesia and other places, originating in China, located in the Yangtze River north-south region, for the Meliaceae, deciduous trees, dioecious Strains, leaves are even pinnate compound, panicle, bisexual white, fruit is oval capsule, wing-shaped seeds, seeds can multiply. Tree tall, tree length up to 25 meters high, the trunk diameter up to 70 cm, the pinnate leaves about 50 to 70 cm long, 30 to 40 cm wide, leaves about 9 to 15 cm long, 2.5 to 4 Cm wide, is the preferred tree species of landscaping.