👉 Pothyne is a type of plant that grows in shallow soil near rivers, lakes, or other bodies of water. It's characterized by its bulbous roots, which can grow up to 18 inches long and reach depths of up to 20 feet. The leaves are opposite, with the upper ones having serrated edges and spreading veins. Pothynes are often used in landscaping for their ability to absorb moisture from the soil and improve water retention.