Poria cocos is a type of fungus, specifically a mushroom, that grows on the roots of pine trees. It is commonly found in Asia and has a hard, woody texture. This mushroom is known for its medicinal properties and is often used in traditional Chinese medicine to promote health and well-being. The fruiting body of Poria cocos is typically brown or yellowish and can be harvested for various uses. It is often processed into powders or extracts and is believed to support digestion, boost the immune system, and improve sleep quality.