Samolus Valerandii is an aquatic plant species commonly known as Valerandi's waterprimrose. This plant is native to North and Central America. Its leaves and stems are used in traditional medicines to treat various illnesses, such as rheumatism and headaches. Synonyms for Samolus Valerandii include Samolus ebracteatus, Samolus floribundus, and Samolus mixtus. The plant grows in freshwater rivers and streams, where it forms dense mats that provide habitat for fish and other aquatic animals. It is also a popular ornamental plant in water gardens and aquariums. Samolus Valerandii is an important part of aquatic ecosystems and is valued for its beauty and medicinal properties.