The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Ceratophyllum
Also called Hornworts, Hornworts [ceratophyllum], Coontails
Coontails (Ceratophyllum) are a genus of submerged aquatic plants found in ponds, marshes and slow streams worldwide; the commonly grown species are Ceratophyllum demersum and C. submersum. They are grown in water gardens and aquaria, where they need only still or slow water and plenty of light.
Ceratophyllum (commonly known as coontails) are a cosmopolitan genus of flowering plants commonly found in ponds, marshes, and quiet streams in tropical and in temperate regions. It is the only extant genus in the family Ceratophyllaceae, itself the only extant family in the order Ceratophyllales. They are often called "hornworts", although the second name is also used for Anthocerotophytes (which have a distinctive horn-like sporophyte). Coontails lack anything resembling a horn, so to avoid confusion, calling them "hornworts" is strongly discouraged.
Rigid Hornwort · Spineless hornwort · Prickly hornwort · Soft Hornwort
Text excerpted from the Wikipedia article Ceratophyllum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
