Genus Swertia, commonly known as the swertias, is a genus of flowering plants comprising about 200 species. Some of its commonly used synonyms include Gentianopsis, Dionema and Potalia. These plants are primarily found in temperate zones of Asia, Europe and North America. They are characterized by their yellow, bell-shaped flowers and their use in traditional medicine as a digestive tonic. Other synonyms used for this genus include Ophelia, Comastoma, Holodiscus and Swertiopsis. Some of the common species found in this genus are Swertia chirayita, Swertia japonica and Swertia perennis. Overall, the Genus Swertia has several synonyms associated with it, reflecting the diversity and versatility of these plants.