Lithops

High Quality Content by WIKIPEDIA articles! Lithops is a genus of succulent plants native to southern Africa. "Lithos" means "stone" and "-ops" means "face" in Ancient Greek; therefore "Lithops" means "stone-like." This is a very good description of these plants, which avoid being eaten by blending in with surrounding rocks. They are often known as pebble plants or living stones. The formation of the name from the greek "-ops" means that even a single plant is called a Lithops.