Slap Grass

Clapgrass is a defensive plant from Plants vs. Zombies: All Stars. It swats zombies with the flyswatter-like leaf on its head. It is shown to have most of its body underground, as indicated by the hole it buried into. Its upgrade is the Venus Flytrap.

Plant Food Upgrade
Digs itself into the ground and smashes the first zombie in its row with its enlarged flyswatter leaf.

Trivia

 * As it is buried into earth, it cannot be planted on wooden planks in Pirate Seas. It shares this trait with Potato Mine, White Radish, Bamboo Shoot, Small Bamboo Cage and Carrot Launcher.