Plants that grow in water are generally referred to as aquatic plants. These plants are specialized for life in or near water and can be found in various types of aquatic environments, including freshwater and saltwater. Aquatic plants can be divided into categories such as submerged, floating, and emergent plants. Common examples include lily pads, reeds, and water hyacinths. Aquatic plants play a crucial role in their ecosystems by providing habitat and food for various aquatic organisms, stabilizing sediment, and improving water quality through their filtration abilities. They are integral to the health of aquatic ecosystems.