Tree-tongue ganoderma lucidum is also known as tree-tongue flat ganoderma lucidum, old mother mushroom, maple mushroom. The substrate is large or extra large. Sessile or almost sessile. The cap is semicircular, flat hemispherical or flattened, the surface gray, brown, with concentric ring ribs, sometimes with tumors, crust gelatinous horny, the edge is thin. Flesh light chestnut color, stomata round. Born in poplar, birch, willow, oak and other broad-leaved trees on dead standing wood, fallen wood and piles. It is one of the important wood-rotting fungi. Leads to the formation of white rot in the wood xylem. Can be used medicinally. In China and Japan folk as anti-cancer drugs. It can also be used to cure winking rheumatic tuberculosis, with the effect of relieving pain, clearing heat, resolving accumulation, stopping bleeding and resolving phlegm.