Hericium erinaceus (also called lion's mane mushroom, mountain-priest mushroom, bearded hegehog mushroom, or bearded tooth fungus) is an edible mushroom belonging to the tooth fungus group. Native to North America, Europe and Asia, it can be identified by its long spines (greater than 1 cm length), occurrence on hardwoods, and tendency to grow a single clump of dangling spines. The fruit bodies can be harvested for culinary use.