The Ficus has thick, leathery, oval-shaped large leaves with interesting colors or pattern that are the main attraction. Some have burgundy red almost black or orange leaf sheaths too. The Ficus elastica is known by many names, Decora, Rubber Plant, Rubber Tree, the list just goes on. Rubber plants are easy-care houseplants that also help improve indoor air quality according to studies conducted by NASA. Their large leaves can absorb airborne chemicals and break them down rendering them harmless. Rubber plants also eliminate bacteria and mold spores in the air. This makes it a popular choice for beginner gardeners because of the easy care and low maintenance.