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, either darting-out and biting anything near or remaining still and spitting fireballs. Currently, Piranha Plants can be found both in and out of pipes and their fire-breathing ability is now rarely used.
By Mastermind777, info from SuperMario Wiki
Tip: You may want to use Kapsh Warppipe to go with this Piranha Plant.