Potamogeton gramineous is a type of aquatic plant commonly found in freshwater habitats across the northern hemisphere. This plant is also known by other synonyms such as Potamogeton pusillus, Potamogeton compressus, and Potamogeton obtusifolius. The word "potamogeton" is derived from Greek words that mean "river plant," which clearly describes its habitat. Unlike other aquatic plants, potamogeton gramineous has long and narrow grass-like leaves that sway with the water currents. It also forms dense mats on the water surface, providing cover and habitat to various aquatic organisms. Understanding the synonyms for a specific plant species can help in identifying and studying it better.