Wolfiporia extensa, also called Poria cocos, Tuckahoe, or Indian Bread; the sclerotium of a fungus used as food by Native Americans and by the Chinese as a medicinal
Tuckahoe was the Native American name for an edible water plant.
Common names include hoelen, poria, tuckahoe, China root, fu ling (茯苓, pīnyīn: fúlíng), and matsuhodo.