The Family Ceratophyllaceae refers to a group of aquatic plant species with submersed or floating leaves that are commonly found in freshwater habitats. These plants are characterized by their distinctive hornwort-like appearance, with stems that are often branched and covered in small spines or bumps. Some of the most commonly used synonyms for the Family Ceratophyllaceae include the Hornwort Family, the Coontail Family, and the Rigid Hornwort Family. These synonyms all refer to the same group of plants, and are commonly used in scientific literature and field guides to describe these unique aquatic species.