Clematis is a genus comprising about 300 species of ornamental plants in the Ranunculaceae family. They are native to Europe and Asia. In some regions, some species are considered invasive. The name of the genus comes from ancient Greek, "klematis" referring to a climbing plant. They are found in gardens and parks, on walls, fences, or structures, and are highly prized for the openness of their foliage and abundance of flowers. It has been grown as a decorative plant since the 17th century (China), and in Europe since the 18th century.