In Tanzhesi Temple in Beijing, a famous temple during the Western Jin Dynasty, there is a large ginkgo tree called the "Emperor tree". It is said that this imperial tree was planted during the Reign of Zhenguan in the Tang Dynasty, and the imperial tree was sealed by emperor Qianlong in the Qing Dynasty. Every year to the golden autumn season, the monarch tree changed into golden costumes, came to watch a wave of worshippers, an endless stream. 
In addition to Buddhist temples, Ginkgo is also revered in Taoism. There is an old ginkgo tree in Tianshi Cave, Qingcheng Mountain, Sichuan province. It is acknowledged that the tree is more than 1800 years old, with a DBH of more than 2 meters. It is said that the ginkgo tree was planted by Master Zhang himself.
Li Shizhen also included ginkgo in his Compendium of Materia Medica, and recorded its nickname ginkgo, as well as another named Duck's foot. Ginkgo biloba L., the Latin name of Ginkgo biloba, means "double split", which refers to the split of two halves in the middle of the leaf, just as Li Shizhen said the leaf was shaped like a duck's foot. Ginkgo is Latin, English, German and other languages are used in the past, the world. 
Ginkgo biloba is a traditional Chinese medicine. In the 1980s, Germany's Dr. Willmar Schwab developed ginkgo biloba preparation -- Tebonin, widely used in the treatment of Alzheimer's disease, cardiovascular disease.
Ginkgo biloba medicinal, can not use yellow leaves, more can not use the fallen leaves on the ground. Medicinal ginkgo biloba leaves should be harvested in autumn while the leaves are still green and should be dried promptly. Ginkgo leaves, now modified for medicinal use, come from dwarf ginkgo trees, which are easier to pick.
The modern application of ginkgo leaf originated from the West. The Chinese Pharmacopoeia began to include ginkgo leaf in the 2000 edition.
The active ingredients in ginkgo biloba leaves are mainly diflavones and lactones, which are very poor in water solubility and must be extracted by organic solvents. 
For two thousand years, the variety of Traditional Chinese medicine has been increasing. From 365 kinds in Shennong Materia Medica Jing 2,000 years ago, to 1,892 kinds in Compendium of Materia Medica, now there are more than 10,000 kinds in Chinese Materia Medica. Many new effective medicinal parts have also been developed and utilized, becoming a new member for the benefit of human health.
