The mushroom under the pine tree is called matsutake. Tricholoma matsutake is also known as Tricholoma matsutake, Pleurotus ostreatus and Pleurotus eryngii. Taxonomic status: Agaricus, Cladosporidae. Tricholoma matsutake is a mushroom that grows naturally at the foot of pine trees. It is yellowish brown, with a small amount of blue-green and copper purple. Usually after the Double Ninth Festival every year, it is clustered or scattered in mixed forests such as coniferous forests, shaped like an umbrella and as big as a mushroom.