4 Scents That Attract Snakes to Your Yard This movement of the leaves is a process known as nyctinasty, which serves a number of purposes. It allows the plant to absorb as much light as possible in its low light Cactus and Succulent Echeveria (Crassulaceae Echeveria sp.).A succulent flower shaped like a rose. The leaves are compressed into layers, superficiall Stock Photo Alamy Crassula "Curly Green" 4800 4900 Poth Road Commercial Revisions Construction, Inc.