Cyperus is a genus of flowering plants in the family Cyperaceae, commonly known as sedges. These plants are typically found in wetland areas, such as marshes and along riverbanks. They have a distinctive appearance, often featuring triangular stems and umbrella-like clusters of flowers. There are over 600 species of Cyperus, with some well-known examples including Cyperus papyrus, which was historically used to make paper in ancient Egypt. These plants play important ecological roles, providing habitat for wildlife and helping to stabilize soil in their native environments.