Concave surface formed by winter bamboo shoots
We can see a crack in this photo. When I saw it, I lifted the soil layer and there was a winter bamboo shoot inside. Of course, this method requires you to have a pair of good eyes.
There is an easier way to look up at the color of bamboo shoots. If you see a bamboo shoot with dense bamboo leaves and dark colors, there must be winter bamboo shoots around this bamboo. If you look carefully at this bamboo forest, you will find winter bamboo shoots.
Dense bamboo shoots have winter bamboo shoots.
You can see the bamboo shoots in this bamboo forest, one of which is very dense, indicating that there are winter bamboo shoots below. You can find them in this bamboo forest.