一、白桦概述白桦,别名粉桦、臭桦,桦木科(Betulaceae)桦属(BetulaLinn)。树高15～20米,胸径30厘米左右,树冠卵形,树干洁白,似层层叠叠的薄纸缠裹,鲜枝红褐色,有白色皮孔。单叶互生阔卵形或三角状卵形,长2.8～8.0厘米,宽2.1～5.6厘米,革质,鲜绿有光泽,叶缘锯齿状,秋叶为绚丽的金黄色。葇荑花序,花黄绿色春季开放。白桦树干洁白,姿态秀丽飘逸,尤其满园成片的白桦树更是北方地区特有的浪漫 A, birch Overview of white birch, alias pink birch, stink birch, Betulaceae Betulaceae (BetulaLinn). Height of 15 to 20 meters, diameter of about 30 cm, the crown oval, tree trunk white, like layers of tissue wrapping wrapped, fresh red branches, with white lenticels. Single leaf alternate broad oval or triangular oval, 2.8 to 8.0 cm long, 2.1 to 5.6 cm wide, leathery, bright green luster, serrated leaves, autumn leaves are brilliant golden yellow. Scrotal inflorescence, yellow-green flowers open in spring. White birch trunk, graceful and graceful posture, especially the garden into a film of white birch is more unique in the northern romantic