Ceratophyllum demersum Hornwort

Ceratophyllum demersum, commonly known as hornwort or coontail, is a free-floating, submerged aquatic perennial plant with a cosmopolitan distribution. It thrives in still or slow-moving freshwater environments, such as lakes, ponds, and streams. Hornwort is characterized by its long, branching stems and whorled, forked leaves that give it a bushy appearance. Notably, it lacks true roots and absorbs nutrients directly from the water column. This plant is valued for its rapid growth and ability to oxygenate water, making it a popular choice for aquariums and ponds. Additionally, hornwort exhibits allelopathic properties, releasing substances that can inhibit the growth of algae, thus contributing to clearer water. Its dense foliage provides excellent cover for aquatic life, including fish and invertebrates.