Ceratophyllum demersum (Coontail) is a species of perennial herb in the family Ceratophyllaceae. It has a self-supporting growth form. It is associated with freshwater habitat. It is native to Alaska, Canada, U.S. Virgin Islands, Puerto Rico, the contiguous United States, United Kingdom, United States, Mato Grosso, Amazônia, Rio de Janeiro, Pernambuco, São Paulo, Amazônia, Rio Grande do Norte, Mato Grosso do Sul, Pantanal, Bahia, Ceará, Rio Grande do Sul, Paraná, Mata Atlântica et Santa Catarina. It has simple, broad leaves et blue flowers. It is a photoautotroph.
EOL has data for 77 attributes, including: