Pistia stratiotes, commonly known as Water Lettuce, is a free-floating aquatic plant admired for its rosettes of soft, velvety green leaves that resemble an open head of lettuce. Native to tropical and subtropical regions, it adds a lush, natural touch to ponds, aquariums, and water gardens while also providing important ecological benefits.

Its leaves form dense floating mats that shade the water surface, helping to suppress algae, while its long, feathery roots dangle below, offering shelter and breeding grounds for fish and other aquatic organisms.