First, the appearance of Zizyphus jujuba was discovered by an American archaeological team in Zhangpu, Fujian. This kind of Zizyphus jujuba lives in tropical and subtropical trees. According to historical records, the ancients ate Zizyphus jujuba 8,000 years ago and stored it in large quantities. This time, the archaeological team found 7 fossils of Zizyphus jujuba, the shape of which is basically the same as that of our modern Zizyphus jujuba. The only difference is that there are 3-6 holes in the top of modern Zizyphus jujuba, while there are 7 holes in the top of Zizyphus jujuba fossils. In other words, the ancient Zizyphus jujuba has more diverse forms. Archaeological data show that jujube was widely distributed in Eurasia in ancient times, and now it only exists in the south of China.
Second, the function of Zizyphus jujuba is relatively hard compared with ordinary jujube, and the jujube stone is relatively large. Because there are five holes at the top of jujube, it is also endowed with the meaning of five blessings. The pulp of jujube contains nutrients such as cellulose, organic acid and protein, which has a good effect on treating cardiovascular diseases, diabetes and enhancing immunity. The trunk of jujube is straight and the bark is grayish brown. The flowers on the tree are light purple, and the flowering period is usually about four months. When mature, the drupe is oval, yellow and fleshy. Jujube is generally distributed in Zhejiang, Fujian, Yunnan and other regions in China. It can not only be used as medicine, but also stop bleeding, relieve pain and burn a large area.
Third, it continues to this day. Twenty million years ago, Zizyphus jujuba was widely distributed in Eurasia, but according to the current research, Zizyphus jujuba has become an endemic plant in East Asia. That is to say, Zizyphus jujuba has existed since ancient times and distributed in the south of China.