A Piranha Plant resembles a venus fly trap, almost always portrayed as a leafy green stalk topped with a white-spotted red head, bisected by a white lip mouth with sharp teeth and no eyes or nose. Instead of eating flies, it eats humans. They have shown up many times in the series, typically hide within pipes (sometimes pipes people can go into) and come out whenever something passes close by. Some species can also spit fireballs, called Venus Fire Traps.