The term for plants that grow in water is "aquatic plants." These plants can live fully submerged, partially submerged, or floating on the surface of water bodies. Aquatic plants are adapted to their watery environments, exhibiting unique features such as buoyant structures, elongated leaves, and specialized root systems for anchoring. They play essential roles in their ecosystems by providing habitats for fish and other aquatic life, improving water quality, and participating in the oxygen-carbon dioxide exchange process. Common examples of aquatic plants include water lilies, cattails, and duckweed, which contribute to the biodiversity of their habitats.