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楸树又名金丝楸,为紫葳科梓树属落叶乔木,主产于我国黄河流域和长江流域,华北地区及浙皖一带也有分布。楸树树干挺拔,生长迅速,适宜做庭阴树、行道树,也可用于点缀草坪、假山,是园林绿化的好材料。笔者所在的河北省安国市是华北地区著名的苗乡,近年来大量栽种楸树,取得了成功。楸树高可达35m,树干挺拔,树冠呈倒卵形,树皮灰色或黑褐色。叶对生或三叶轮生,三角状卵形或长卵状椭圆形。总状花序顶生,有花3~12朵,花冠浅粉色,内有紫色斑点。蒴果,种子
Catalpa bungei, also known as Catalpa bungei, Catalpa bifasciatus is a deciduous tree, mainly produced in China’s Yellow River Basin and the Yangtze River Basin, North China and Zhejiang-Anhui area also has distribution. Catalpa bungei trunk upright, rapid growth, suitable for court yin tree, street trees, can also be used to embellish the lawn, rockery, landscaping is a good material. The author is located in Anguo City, Hebei Province, is a famous Miao Township in North China, Catalpa trees planted in large quantities in recent years, and achieved success. Catalpa tree up to 35m, trunk tall and straight, the crown was obovate, bark gray or dark brown. Leaves opposite or trilobes ellipsoid, triangular-ovate or oblong-ovate. Racemes top students, flowers 3 to 12, light pink corolla, purple spots inside. Capsule, seed