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2015 Barry Breckling   cc-by-nc-sa-3.0

Ceratophyllum demersum (Coontail) 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 United Kingdom, AmazôNia, United States, U.S. Virgin Islands, Pantanal, Rio Grande Do Norte, Santa Catarina, Bahia, SãO Paulo, Mato Grosso, Mato Grosso Do Sul, Eastern North America, Puerto Rico, Rio Grande Do Sul, Paraná, Rio De Janeiro, The Contiguous United States, North America, Ceará, Alaska, Pernambuco, Mata Atlântica, and Canada. They have simple, broad leaves and blue flowers. Individuals can grow to 0.64 m.

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EOL has data for 76 attributes, including:

Known occurrences, collected specimens and observations of Coontail. View this species on GBIF