Diving into the Exotic Green: Five of Earth's Strangest Flora and Their Eccentric Antics
The Sensitive Plant - Mimosa Pudica

The Sensitive Plant is known for its rapid plant movement. When touched, the leaves fold inward and droop, then re-open a few minutes later. This is thought to deter predators or to shake off harmful insects. The Sensitive Plant is native to Central and South America but has spread to many parts of the world.