有许多树木的花、果实、籽种,叶均可烹饪而食,成为木本蔬菜,其中以香椿(又名“树头菜”)为最著名。香椿分布东起辽宁南部、西至甘肃,北至内蒙古南部,南至广东、广西、云南。垂直分布最高达海拔一千八百米,但大多生长在海拔高度一千五百米以下的山地和广大平原地区。香椿是暖温带树种,亚热带也有分布。耐寒性、耐旱性均较差。随着年龄的增 There are many trees flowers, fruits, seeds, leaves can be cooked and become woody vegetables, including Toon (also known as “tree head dish”) is the most famous. Toon distribution east of Liaoning from the south, west of Gansu, north to Inner Mongolia in the south, south to Guangdong, Guangxi, Yunnan. Vertical distribution of up to 1,800 meters above sea level, but most of the growth in the altitude below 1,500 meters of the mountain and the vast plains. Toon is a warm temperate tree species, there are subtropical distribution. Cold tolerance, drought tolerance are poor. With age