Nymphaea, commonly known as water lilies, is a genus of aquatic flowering plants found in freshwater habitats around the world. These plants are characterized by their large, flat leaves that float on the water's surface and their beautiful, fragrant flowers that bloom above the water. Water lilies are important for aquatic ecosystems, providing shelter and food for various wildlife. There are about 60 species of Nymphaea, with varying colors and sizes. They are often used in ornamental ponds and gardens due to their aesthetic appeal. The flowers typically open during the day and close at night, showcasing their unique life cycle.