Piranha Flower

Piranha Flowers are variants of the Piranha Plant enemy in Super Mario 64. They are smaller Piranha Plants that appear when the player walks nearby, shoots a fireball at the player, then disappear. They are defeated by being jumped on.

Piranha Flower Fields
Piranha Flower Fields is an anomaly that appears in levels that contain spots of grass where several Piranha Flowers can appear in a grassy area, and when all are killed, a star is dropped with the mission name Piranha Flower Fields. Oddly, the mission does not appear in the mission select screen.