Shiitake mushroom

species of fungus
Shiitake mushrooms

The shiitake mushroom (Lentinus edodes or Lentinula edodes), also known as Chinese black mushroom or black forest mushroom, is an edible mushroom typically grown on the shii tree. Two Chinese variant names for high grades of shiitake are dōnggū ("winter mushroom") and huāgū ("flower mushroom," which has a flower-like cracking pattern on the mushroom's upper surface); both are produced at colder temperatures.