Mushroom
Mushroom A mushroom, or toadstool, is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or on its food source [...] considered safe for most people to eat because it is grown in controlled, sterilized environments. Several varieties of A. bisporus are grown commercially [...] of macrofungi (fungi which bear fruiting structures that are large enough to be observed with the naked eye). They can appear either below ground (hypogeous)