Lemnoideae is a subfamily of aquatic plants commonly known as duckweeds. These tiny, floating plants are found on the surface of freshwater bodies like ponds and lakes. They are among the smallest flowering plants in the world and play a crucial role in aquatic ecosystems by providing food and habitat for various organisms. Duckweeds are also important for their ability to absorb nutrients and improve water quality. They can grow rapidly, making them useful for bioremediation and as a sustainable source of animal feed. Their unique characteristics have drawn interest from researchers studying ecosystem health and sustainable agriculture.