Flammulina velutipes, also known as Lentinus edodes, Pleurotus ostreatus, hairy mushrooms, etc. It belongs to Pleurotus, Basidiomycetes, Thallus, Agaricus, Tricholomataceae and Tricholoma. Flammulina velutipes is widely distributed in nature, and has been planted in China, Japan, Russia, Europe, North America and Australia. Flammulina velutipes is widely distributed in China and has a long cultivation history. Suitable for the growth of Flammulina velutipes in Heilongjiang in the north, Yunnan in the south, Jiangsu in the east and Xinjiang in the west.