Infundibulicybe geotropa, also known as the trooping funnel or monk's head, is a funnel-shaped toadstool widely found in Europe and (less commonly) in North America. A large sturdy cream- or buff-coloured funnel-shaped mushroom, it grows in mixed woodlands, often in troops or fairy rings, one of which is over half a mile wide. Although edible, it could be confused with some poisonous species of similar colouration and size.