2. Ginkgo biloba is a plant of Ginkgo in Ginkgoaceae. Trees, below 40 meters high and below 4 meters in diameter at breast height; The bark of young trees is shallowly longitudinally split, and the bark of big trees is grayish brown, deeply longitudinally split and rough; The crowns of young and mature trees are conical, while the crowns of old trees are roughly oval. Leaves are fan-shaped, long-stalked, light green, hairless, with many branched parallel veinlets, the top is 5-8 cm wide, short branches often have wavy notches, long branches often have 2 cracks, and the base is wide wedge-shaped. Cone dioecious, unisexual, clustered in the axils of scaly leaves at the top of short branches; Male cones are inflorescence-shaped and drooping. The seeds have long peduncles and droop, often oval, obovate, ovoid or nearly spherical.