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Biodiversity Institute of ontario. Year: 2012.   cc-by-nc-sa-3.0

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

EOL has data for 5 attributes, including:

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