Piranhacus Giganticus

A Piranhacus Giganticus is an extra-large Piranha Plant in the game Super Mario Bros. 3. They only appear in Big Island. Although they are huge, a single fireball will destroy them. Despite their size, they are essentially exactly the same as any other typical Piranha Flower, other than they present a larger target and obstacle.

Super Mario Galaxy 2
Piranhacus Gigantici appear alongside Grand Goombas and Grand Paragoombas in Super Mario Galaxy 2, where they appear in the Supermassive Galaxy.