Comrade Guo Moruo once praised it as "the national tree of China" Ginkgo biloba. He once wrote an article called Ginkgo biloba. Ginkgo biloba, Ginkgo, commonly known as Ginkgo biloba, gongsunshu. It first appeared in the Carboniferous period 345 million years ago and was widely distributed in Europe, Asia and America in the northern hemisphere. It was the king of the world like dinosaurs in the animal kingdom. By 500,000 years ago, the Quaternary glacial movement occurred, the earth suddenly became cold, and most ginkgo plants were on the verge of extinction. Only when China has superior natural conditions can it miraculously survive. Therefore, scientists call it a "living fossil" and a "panda in the plant kingdom". At present, there are wild and semi-wild ginkgo communities in Tianmu Mountain in Zhejiang, Dabie Mountain in Hubei and Shennongjia. There is no doubt that foreign Ginkgo biloba was introduced directly or indirectly from China.