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, U.S. Virgin Islands, Alaska, The Contiguous United States, North America, and Puerto Rico.

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EOL has data for 8 attributes, including:

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