The Genus Corylopsis is a group of deciduous shrubs that are known for their elegant and beautiful flowers. It is a genus of plants belonging to the family of Hamamelidaceae. Some of the synonyms for this genus include Buttercup Winter Hazel, Winterhazel, and Spike Winter Hazel. These synonyms are derived from the shape and color of the flowers that the shrubs produce. The genus is native to Asia and North America and has several species, including Corylopsis pauciflora, Corylopsis sinensis, and Corylopsis spicata. Corylopsis plants can be used as ornamental plants in gardens and landscapes, and they also have medicinal properties.