Selaginella eremophila is a type of fern plant that is commonly known as desert spike moss. Some synonyms for Selaginella eremophila include Selaginella involvens, Selaginella eremita, and Selaginella oregana. All of these names refer to the same plant species, which is native to dry regions of North America. Desert spike moss is a small, creeping plant that thrives in sandy soil and is known for its ability to survive in harsh desert conditions. It is a popular ornamental plant, used in landscaping and gardening as a ground cover, in rock gardens and container gardens.