lion's mane

noun

ˈlī-ənz- 

variants or lion's mane mushroom

: an edible mushroom (Hericium erinaceus) of North America and Eurasia that forms a large globular white or pale yellow fruiting body (as on the trunks of hardwood trees) covered in a mass of dangling spore-producing processes

Hericium erinaceus is a medicinal-culinary mushroom widely found in East Asian countries and is commonly known as lion's mane mushroom. … It has great potential in treating neurological disorders as it contains neurotrophic compounds that can pass through the blood–brain barrier.

—Pit Shan Chong et al., International Journal of Molecular Sciences