Tundra vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Muskoxen will eat grasses, arctic willows, woody plants, lichens, and mosses. Lichens that grow immersed inside plant tissues are called "endophloidic lichens" or "endophloidal lichens". The desert vegetation consists of algae, lichens, and mosses. Mosses are commonly confused with hornworts, liverworts and lichens. Tardigrades are often found on lichens and mosses. Marmots mainly eat greens and many types of grasses, berries, lichens, mosses, roots, and flowers. These woodlands are home to lichens, mosses and ferns. It is home to exceptional epiphytic mosses, liverworts and lichens. Bouldering can damage vegetation that grows on rocks, such as mosses and lichens. There is no vegetation except for mosses, lichens and some grass. Lecanora is a genus of lichen commonly called rim lichens. In this cold climate plant life is mainly limited to grasses, lichens, and mosses. The ground is bare with a patchy cover of lichens and mosses. Conditions of high humidity foster an environment rich in mosses and lichens.