Current location - Recipe Complete Network - Health preserving recipes - What do ginkgo leaves look like?
What do ginkgo leaves look like?

Ginkgo leaves look like a fan.

Ginkgo, is a plant of the family Ginkgoaceae, genus Ginkgo.

Ginkgo, is a tree, up to 40 meters high, diameter at breast height of up to 4 meters; young tree bark shallow longitudinal fissure, the bark of the large tree is gray-brown, deep longitudinal fissure, rough; young and strong years of the crown is conical, the old is broadly ovate; branches nearly whorled, oblique upward extension (female plants are often more than the male plant to carry out the large branches); annual long branches light tawny, two years old or more gray, and have fine longitudinal fissure; short branches are densely covered by the leaf scars, black gray, short branches can also grow long branches on the black and gray, the short branches can also grow long branches. Short branches densely covered with leaf scars, black-gray, long branches may also grow on short branches; winter buds yellow-brown, often ovoid, apex obtuse-acute.

Leaves fan-shaped, long-petiolate, light green, glabrous, with numerous forked and juxtaposed veins, 5 to 8 cm wide at the tip, often undulate notched on short branches, often 2-lobed on long branches, base broadly cuneate, stipe 3 to 10 (mostly 5 to 8) cm long, often more y lobed in young trees and on sprouting branches (leaf blade up to 13 cm long and 15 cm wide), sometimes lobes are re-divided (similar to leaves of more primitive fossil species). (which is similar to the leaves of more primitive fossil species), the leaves are spirally dispersed on annual growth branches, and 3 to 8 leaves in clusters on shorter branches, which turn yellow in the fall before deciduous leaves fall.

Globose flowers are dioecious, unisexual, borne in clusters in the axils of scalelike leaves at the tips of short branches; male globose flowers are catkin-like, pendulous, with laxly arranged, short-stemmed stamens, often 2 anthers, long ellipsoid, with longitudinally cleft anther locules, and a non-spreading septum; female globose flowers are long-stalked, with pedicel ends often bifurcate, sparsely 3-5-furcate or unfurcate, and with each fork crowned with a discoid ovule on which the ovules are inserted, usually at the end of only one fork. The ovules develop into seeds, which are wind-pollinated.

Seeds long peduncled, pendulous, often ellipsoid, long obovate, ovoid or subglobose, 2.5 to 3.5 cm long, 2 cm in diameter, exocarp fleshy, yellow or orange-yellow when ripe, with stinking leaves; mesocarp white, bony, with 2 to 3 longitudinal ridges; endocarp membranous, pale reddish-brown; endosperm fleshy, with a sweet and slightly bitter taste; cotyledons 2, sparsely 3, not emergent at germination, primordial leaves 2 to 5, broadly striped, with a longitudinal ridge, with a longitudinal ridge. to 5, broadly striped, ca. 5 mm long, ca. 2 mm wide, apex retuse, followed by a fan-shaped leaf from the 4th or 5th, apex with a deep cleft and irregular undulate notch, petiole 0.9 to 2.5 cm long; with a primary root.

Ginkgo is a fast-growing valuable timber species, sapwood yellowish, heartwood yellowish brown, fine structure, light and soft, rich in elasticity, easy to process, glossy, specific gravity of 0.45 to 0.48, not easy to crack, do not deflect, for the excellent timber, for construction, furniture, interior decoration, carving, drawing plate and so on. The seeds are used for food and medicine. The leaves are used as medicine and insecticide, and can be used as fertilizer. The fleshy exocarp of the seeds contains albino acid, albino alcohol and albino phenol. The bark contains tannin. Ginkgo tree shape is beautiful, spring and summer leaf color green, autumn into yellow, quite beautiful, can be used as garden trees and street trees.