The morphological characteristics of wild Coprinus comatus are as follows:

The fruiting body is larger. The mushroom lid is cylindrical, and within 40 minutes after opening the umbrella, the edge mushroom folds dissolve into ink-like liquid, and the mushroom handle becomes slender. The diameter of the cap is 3 ~ 5cm and the height is 9 ~ 1 1 cm. The surface is brown to light brown and breaks into larger scales with the growth of the cap. Mushroom meat is white.

The stalk is white, cylindrical, slender, gradually thickened downward, 7 ~ 25 cm long, 1 ~ 2 cm thick and smooth.