Hypericum Tetrapterum, commonly known as the square-stalked St. John's Wort, belongs to the family of Hypericaceae. It is a perennial flowering plant that grows in the forested regions of North America, Europe, and Asia. The plant is characterized by its square stems and small, yellow flowers that bloom during the summer months. Some common synonyms for Hypericum Tetrapterum include St. John's Wort, Tutsan, and Aaron's Beard. Each of these names reflects the plant's historical and cultural significance. St. John's Wort is named after the Christian saint, Aaron's Beard after the biblical figure, and Tutsan after the French word for the herb. Regardless of its name, Hypericum Tetrapterum has been used for a variety of medicinal and magical purposes for centuries.