Piranha Plants are large, carnivorous plants encountered throughout the Mario franchise. They are seemingly based on Venus flytraps and eat anything that approaches them.
The head of a Piranha Plant is most commonly either red or green with multiple other colors. Originally, Piranha Plants were found exclusively in pipes, darting out and biting anything near. Currently, Piranha Plants can be found both in and out of pipes, and may constantly bite or wait for Mario to approach to do so.