Now the quality on the market is better, and there are some famous gastrodia elata in several places. First, Tian Yun Tian Ma is produced in Zhaotong and Lijiang, but the quality of Xiaocaoba Township in Zhaotong is the best. Second, Sichuan Gastrodia elata is produced in Sichuan, such as Qingchuan. Third, expensive gastrodia elata, produced in Guizhou, has the best reputation; There is also Gastrodia elata, which is produced in Hanzhong, Shaanxi. Gastrodia elata is produced in other places. To say that among these gastrodia elata producing areas, it is recognized that the best is produced in Xiaocaoba, Yunnan. The content of gastrodin is about 1. 1, which is 2-4 times that of other places. This is what I know, I hope to adopt it ~