Summary ²

Ceratophyllum demersum, commonly known as hornwort, rigid hornwort, coontail, or coon's tail, is a species of Ceratophyllum. It is a submerged, free-floating aquatic plant, with a cosmopolitan distribution, native to all continents except Antarctica. It is a harmful introduced weed in New Zealand. It is also a popular aquarium plant.

Sources and Credits

1. (c) Ricky Taylor, some rights reserved (CC BY-NC), uploaded by Ricky Taylor
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Ceratophyllum_demersum

More Info

• iNat taxon page
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• eFloras.org
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• USDA PLANTS database
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