A Twirlip is an enemy that appeared in Super Mario Galaxy 2. They appear in a number of galaxies, the most notable being the Spin-Dig Galaxy. They take the form of a bud, but they can turn into pink flowers with a yellow center that spin around. Touching them gives Mario or Luigi damage. They can be eaten by Yoshi, but only in bud form.
Spinning Behind the Wheel
Twirlips are supposed to appear in the upcoming game Koopa Kart Galaxy as light weight drivers.