Pleurotus eryngii (also known as king trumpet mushroom, french horn mushroom, king oyster mushroom) is an edible mushroom.

It is the largest species in the oyster mushroom genus, Pleurotus, which also contains the oyster mushroom Pleurotus ostreatus. It has a thick, meaty white stem and a small tan cap (in young specimens). It has little flavor or aroma when raw. When cooked it, develops typical mushroom umami flavors, with a texture similar to that of abalone.

Pleurotus nutritious, rich in protein, carbohydrates, vitamins and calcium, magnesium, copper, zinc, and other minerals, can increase the body's immune function, the human body with anti-cancer, blood fat as well as nice gastrointestinal effects.