Mark Hyde, Bart Wursten and Petra Ballings   cc-by-nc

Ceratophyllum (Hornwort) is a genus of herb in the family Ceratophyllaceae. They are associated with freshwater habitat. They are native to Canada, Puerto Rico, The Contiguous United States, U.S. Virgin Islands, North America, and Alaska.

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EOL has data for 9 attributes, including:

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