As early as more than 1,000 years ago, the ancients in China had discovered the medicinal value of ginkgo.
Ouyang Xiu's poem said: "At the beginning of the tribute, ginkgo biloba is expensive in Zhongzhou." Li Shizhen said: "The original Jiangnan, the leaves are like duck paws, because of the name duck feet." At the beginning of the Song Dynasty, it was called ginkgo, because it resembled a small apricot and the nuclear color was white. Today's name is Ginkgo Fruit. Mei Yaochen's poem said: "Duck foot green plum, its name is because of the high leaves." Li Shizhen said: "Ginkgo biloba, famous in the early Song Dynasty, and those who cultivate herbal medicine do not accept it. Prescription medicines are also used from time to time. Its gas is thin and the taste is strong, the sex is astringent and closed, and the color is white and golden. Therefore, it can enter the lung meridian, benefit the lungs, fix asthma, and shrink the stool. If it can be greasy, then its ability to remove phlegm and turbidity can be inferred. Its flowers bloom at night, people can't see it, and cover it with poisonous things, so it can kill insects and disinfect it. However, if you eat too much, you will be too much to order, which will make you feel distended and dizzy. Therefore, "The Feeling of Things" said: "Ginkgo biloba can intoxicate people". And the "Sanyuan Life Extension Book" says: "Those who eat a thousand ginkgo fruits die." Youyun: "In the past, there were hungry people, and they all died the next day with ginkgo nuts instead of food." Li Shizhen said: "Ginkgo biloba is born in the south of the Yangtze River, and those who win the city are victorious." The tree is two or three feet tall. The leaves are thin and longitudinal, like a duck's palm, with carved gaps, and the face is green and the back is light. In February, the flowers are clustered, blue-white, and the second more blooms, and then unloads, which is rare for people. A branch of knots is one hundred and ten, like neem seeds, ripe and rotten after frost, and the flesh is removed and the core is taken as fruit. Its nucleus is pointed at both ends, with three edges being male and two edges being female. Its kernel is green when it is tender, and yellow when it is long. It must be male and female, and its trees face each other, and they are fruitful;or female trees can also be near the water;Or chisel a hole, a piece of male wood inside, mud, and knots. The sense of yin and yang is so wonderful. The tree is durable and has a white and greasy texture. The sorcerer takes the engraved sigil, and the cloud can summon the envoy. ”[1]
It can be seen that the Dao real estate area of Ginkgo biloba (Daodi originally refers to local specialties, and later evolved into a synonym for "genuine, high-quality and reliable") is Jiangsu, Zhejiang, Fujian, Anhui and other provinces in southeast China.
References:[1]Chinese Society of Neurology. Guidelines for the diagnosis and treatment of acute ischemic stroke in China 2014[J].Chinese Journal of Neurology. 2015,48(4):246-257.