The Raindrop Peperomia, scientifically known as peperomia polybotrya, is an easy-to-care-for, charming houseplant known for its fat, thick, shiny leaves that look like a raindrop rolling down your window. Not only are the leaves shaped like a water droplet, they are designed to store water, hence their thickness. This plant is also know as coin plant or coin-leaf peperomia and is commonly mistaken for the popular Chinese Money Plant (pilea peperomia).