Aquatic flora refers to the various plant species that thrive in water environments, including oceans, rivers, lakes, and wetlands. These plants play a crucial role in aquatic ecosystems by providing oxygen, food, and habitat for a wide range of organisms. Common types of aquatic flora include algae, water lilies, and seagrasses. Aquatic plants can be categorized into three main groups: emergent plants, which grow partially above water; submerged plants, which are fully underwater; and floating plants, which float on the water's surface. Each group has unique adaptations that allow them to survive in their specific aquatic habitats.