The Shiitake mushroom (Lentinula edodes) belongs to the family Mycenaceae. It is a fungus that is distributed in various parts of Japan, as well as in the Korean Peninsula, China, and the alpine belts of Southeast Asia. This fungus grows on dead hardwoods. It will open a brown pileus at the end of a short cylindrical stalk. Fluffy scales adhere to the pileus. It has been cultivated in Japan since the Edo period. Today, the main production areas are Oita, Kumamoto, Miyazaki, Shizuoka, and Iwate prefectures. The main production areas in China are from Central China to South China.