Only Hengyang and Shuangfeng mountain areas in Hunan Province have sporadic wild populations.
The most suitable time for picking is generally after the arrival of plum rain, and it will grow after 1 week of continuous rain, and there can be no big sun in the middle. It is easy to be eaten by insects after growing for 2-3 days, so it is necessary to rummage in time.
When I was a child, I didn't understand the preciousness of this, but I knew it was particularly delicious.