toadstool

A fungus with an umbrella-shaped fruiting body, especially one thought to be inedible or poisonous.

A common name for numerous umbrella-shaped fungi which grow abundantly on decaying vegetable matter.

A name given to many umbrella-shaped fungi, mostly of the genus Agaricus. The species are almost numberless. They grow on decaying organic matter.

Any inedible or poisonous mushroom, especially an agaric.

common name for an inedible or poisonous agaric (contrasting with the edible mushroom)