Ginkgo biloba Linn., a genus of ginkgo biloba in the family Ginkgo family
【Aliases】White fruit tree, Gongsun tree, duck palm tree.
【Identification features】Large deciduous tree, breast diameter up to 4 m, juvenile and mature crown conical, old is broadly ovate; Bark of young trees nearly smooth, light grey, bark of large trees grey-brown, irregular longitudinal lobes, rough; The branches are nearly rotated and stretched obliquely, and the large branches of the female plant are often more developed than the male plant; The leaves are fan-shaped, with most forked parallel fine veins, radially scattered on long branches, 3 ~ 5 on short branches in clusters, petioles slender, turning yellow before autumn leaf fall; Dioecious, unisexual. The male bulbous is inflorescence-shaped, drooping. The female flowers have long stems, the peduncles are often bifurcated, and one ovule on each fork develops into a seed; The fruit is oval, oblong-ovate, oval or nearly spherical, about 2 cm in diameter, covered with white powder. It blooms in April and ripens in October.
【Distribution habits】It was widely distributed in Europe, Asia, America and other places in the northern hemisphere, and only ginkgo survived in China due to local historical changes. After introduction, ginkgo biloba has been widely distributed in Asia, Europe, America and Oceania. Ginkgo biloba is a positive tree, which is not tolerant to stagnant water and is more drought-tolerant. The soil requirements are not strict, like moist and well-drained deep soil, but neutral or slightly acidic soil is the most suitable. There are many varieties, varieties and varieties of ginkgo, and the main ones with high ornamental value are commonly found to be yellow-leaved ginkgo (f. aurea beissn.), tower-shaped ginkgo (f. fastigiata Rehd.), large-leaf ginkgo (cv. lacinata), weeping ginkgo (cv. pendula), spot-leaved ginkgo (f. variegata Carr.) Wait.
【Propagation and cultivation】Ginkgo biloba is mainly propagated by sowing, cuttings, and grafting, and can also be propagated separately. Sowing and propagation should be treated with seed sand deposits until the next spring. Nutrient propagation such as cuttings, grafting, and plant division can effectively advance the flowering and fruiting stage of ginkgo.
【Garden Application】Ginkgo biloba grows slowly and has a very long lifespan, and is the oldest relict plant among existing seed plants, and has the reputation of living fossils. The ginkgo tree is tall and tall, with strong adaptability, fresh and beautiful green leaves in spring and summer, golden leaves in autumn, and suitable for street trees, garden shade trees, solo viewing trees, autumn landscape trees and landscape forests, etc., and can also make bonsai.
The data is from the third edition of "Identification and Application of Garden Plants"
Photo from Baidu