Mimosa Pudica is a sensitive plant or touch-me-not plant that is featured in tropical gardens for its sensitive leaves! Its leaflets fold inward and droop temporarily when touched, shaken or exposed to sudden movement. This is a natural reaction that is termed thigmonasty. The plant is a member of the bean family and is found in the tropical areas of Central and South America. It is a popular ornamental plant for the garden, container and educational applications, due to its unique movement.