Hericium erinaceus, commonly known as lion's mane, yamabushitake, bearded tooth fungus, or bearded hedgehog, is a species of tooth fungus. It tends to grow in a single clump with dangling spines longer than . It can be mistaken for other Hericium species that grow in the same areas.

Native to North America and Eurasia, the mushrooms are common during late summer and autumn on