Ceratophyllaceae
Coon's tail
Ceratophyllum demersum
- Family
- Ceratophyllaceae
- Genus
- Ceratophyllum
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Common names
By language (33)
- Arabic
- شمبلان مغمور, ذيل الثعلب
- arz
- شمبلان مغمور
- Azerbaijani
- Suyabatmış buynuzyarpaq
- Belarusian
- Рагаліснік апушчаны
- Bulgarian
- Плаващ роголистник
- Catalan
- Llapó punxenc, Cornifle nageant, Cératophylle épineux
- Chinese
- 金魚藻, 金鱼藻, 普通金鱼藻, 松藻, 灯笼丝, 细草, 软草
- Croatian
- Kruta voščika
- Czech
- Růžkatec ostnitý, Růžkatec ponořený
- Dutch
- Grof hoornblad
- English
- Coon's tail, Coon's-Tail, Coontail, Hornwort, Rigid hornwort, Common hornwort, Hornworts
- Estonian
- Räni-kardhein
- Finnish
- Karvalehti, Tankeakarvalehti, Sarvikarvalehti
- French
- Cornifle immergé, Cornifle nageant, Cératophylle épineux, Ceratophylle émergé, Cornille, Herbe à cornes
- German
- Raues Hornblatt, Rauhes Hornblatt, Cornifle nageant, Cératophylle épineux
- Hebrew
- קרנן טבוע
- hsb
- Drapaty rohačk
- Italian
- Ceratofillo
- Japanese
- マツモ
- Korean
- 붕어마름
- Lithuanian
- Paprastoji nertis, Cornifle nageant, Cératophylle épineux
- Malayalam
- കരിംപായൽ
- Norwegian Bokmål
- Hornblad
- Persian
- علف شاخی غوطهور
- Polish
- Rogatek sztywny
- Romanian
- Cosor
- Slovak
- Rožkatec ponorený
- Slovenian
- Navadni rogolist
- Spanish
- Bejuquillo, Cola de zorro, Mil hojas de agua, Pinito de agua
- Swedish
- Hornsärv, Cornifle nageant, Cératophylle épineux
- Ukrainian
- Кушир занурений, Роголисник занурений
- Vietnamese
- Rong đuôi chó
- Welsh
- Cyrnddail caled
Synonyms
- Ceratophyllum cornutum Rich. ex S.F.Gray
- Ceratophyllum demersum var. commune A.Gray
- Dichotophyllum demersum (L.) Moench
Flowers
- In flower
- May to July (from 10 flowering iNaturalist observations worldwide)
- Flower colour
- blue (USDA PLANTS Database)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Alaska: native, Canada: native, Hawaii: introduced, Lower 48 states: native, Puerto Rico: native, U.S. Virgin Islands: native
Photos
FlowerPhoto: Samuel A Schmid, PhD, PWS, CC BY 4.0, from iNaturalist 
FlowerPhoto: anoleinwoods, CC BY 4.0, from iNaturalist 
FlowerPhoto: Samuel A Schmid, PhD, PWS, CC BY 4.0, from iNaturalist 
FlowerPhoto: Arnim Littek, CC BY 4.0, from iNaturalist 
Photo: Юлия, CC BY 4.0, from iNaturalist 
Photo: Christian Fischer, CC BY-SA 3.0, from Wikimedia Commons 
Photo: chiuluan, CC BY 4.0, from iNaturalist 
Photo: Bernd Haynold, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Ethan, CC BY 4.0, from iNaturalist 
Photo: Bernd Haynold, CC BY-SA 3.0, from Wikimedia Commons 
Photo: 葉子, CC0, from iNaturalist 
Photo: Radio Tonreg from Vienna, Austria, CC BY 2.0, from Wikimedia Commons
More in Ceratophyllum
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.