Lentinus sajor-caju is a species of edible mushroom that belongs to the family Polyporaceae. It is a white-rot fungus that grows on dead wood and is commonly found in tropical and subtropical regions. The fruiting body of this mushroom is fan-shaped with a cap that ranges from 5 to 25 cm in diameter. The cap is light brown to dark brown in color with a velvety texture on top and a white underside. The stem is short and thick and is usually attached to the side of the cap.