银杏是雌雄异株树木,外部形态有一定差别,因此可从外部形态的差别识别其公母。1.叶片的差别　母树叶缘锯齿缺刻较浅,叶先端多为浅裂,且叶片较小,落叶较早。公树叶缘锯齿缺刻较深,叶先端多为深裂,且叶片较大,落叶较晚。2.枝条的差别　母树的横生枝多,长势弱,与主干夹角大(... Ginkgo biloba is a dioecious tree with some differences in external morphology, so it can identify its male and female from the difference of external morphology. 1. The difference between the leaves of the mother leaves serrated notches shallow, leaf tip mostly lobed, and smaller leaves, deciduous earlier. Male tree leaves sawtooth notch deeper, mostly apical lobe, and the leaves larger, deciduous late. 2. The difference between the branches Tree branches, growing weak, with the main angle (...