Ceratophyllum demersum is a species of perennial herb in the family Ceratophyllaceae. They have a self-supporting growth form. They are associated with freshwater habitat. They are native to Pernambuco, Ceará, Bahia, United Kingdom, United States, Amazônia, U.S. Virgin Islands, SãO Paulo, Mata Atlântica, Rio Grande Do Norte, Eastern North America, Puerto Rico, Pantanal, Rio De Janeiro, Mato Grosso, The Contiguous United States, Paraná, Rio Grande Do Sul, Santa Catarina, North America, Mato Grosso Do Sul, Alaska, and Canada. They have simple, broad leaves and blue flowers. Individuals can grow to 0.64 m.
EOL has data for 78 attributes, including: