The seeds of ginkgo tree are commonly known as ginkgo, so ginkgo is also known as ginkgo tree. Ginkgo trees grow slowly and have a very long life. Under natural conditions, Ginkgo biloba takes more than 20 years from planting to fruiting, and will bear a large number of fruits after 40 years. So some people call it "gongsunshu", which means "public can eat grandchildren". It is a longevity star in trees, which has ornamental, economic and medicinal values.
Seeds are used for food (easy to be poisoned by eating too much) and medicine. The fleshy seed coat of seeds contains ginkgolic acid, ginkgol and ginkgol, which is toxic. Bark contains tannin.
Extended data
Ginkgo tree varieties:
1, cotton ginkgo refers to the seeds of Ginkgo biloba, mostly oval, with a blunt round front end, often Shuang Ren, a wide base and a sharp front end, with a "one" or "ten" shaped groove pattern nearby. The seed nucleus is oblate, ovoid, with wide and sharp front end, obvious ridge on the side, sharp edge and narrow lower part. The most planted places are Xing 'an and other places in Guangxi.
2. Tongzi Ginkgo refers to both ginkgo trees and ginkgo fruits. Trees are characterized by iron gray branches, vigorous growth of young trees and vigorous tree vigor. They are suitable for growing in higher areas with an altitude of 2000-2500m, and can obtain high yield, and the age of trees can reach 150 years or more. Ginkgo biloba is most planted in Xing 'an and Lingchuan areas of Guangxi.
3. Ginkgo biloba fruit is plump and round, which is an improved grafted tree species. This tree is open and has no trunk. The trunk can be a natural rectangle, or it can be artificially trimmed into a semicircle. From the seed morphology, it is a rectangular circle with a blunt top and a flat base.
The seed nucleus of Ginkgo biloba is named after its bell shape, which is a fat oval with a blunt tip at the front and a wide round base, with a ridge above the middle of the nucleus. Zhuji, Zhejiang is the most planted area.
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