Clovers are three-leaved plants in Pikmin and Pikmin 2, for the Nintendo GameCube and in Pikmin 3 for the Nintendo WiiU . These plants along with many others don't affect gameplay in the first 2 games. Usually iridescent Flint Beetle hide in here. In Pikmin 3, you can hide your squad and yourself under them. Don't mistaken these for the clover item Science Project. These are in the background of the Distant Planet stage in Super Smash Bros. Brawl for the Wii.