coiled vallisneria

Vallisneria spiralis is a species of aquatic plant in the Hydrocharitaceae family. It is native to tropical and sub-tropical regions across multiple continents, including the Americas, Europe, Africa, and Asia. The plant is often cultivated in aquariums due to its adaptability and preference for good light and nutrient-rich substrates. It is known by several common names, including straight vallisneria, tape grass, and eel grass. Its wide distribution includes locations such as British Columbia, Prince Edward Island, Portugal, Colombia, and various countries in Europe and Africa.