2. The distribution of Qiuci is very narrow, only concentrated on the hillside near Yaoshan Village, Tongchang Township, Jinping County. The lowest growth line is 1320m, the highest growth line is 1390m, and the concentrated distribution zone is1360 ~1380 m. The karst landform in Tongchang Township is prominent, with many Yinhe caves and serious surface water infiltration. The climate is quite different, showing a three-dimensional climate. The annual average rainfall is 2603.3mm, the annual average temperature is 17 ~ 22℃, the extreme maximum temperature is 33. 1℃, the minimum temperature is -0.9℃, the frost-free period is 344 days, and the average sunshine is 1607 hours. In addition to Yaoshan village, there is a small amount of bitter tea distributed in Longkou, Tongchang, at an altitude of1660 ~1690 m.