Haloragaceae
Eurasian watermilfoil
Myriophyllum spicatum
- Family
- Haloragaceae
- Genus
- Myriophyllum
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Common names
By language (30)
- Arabic
- أم ألف ورقة, الحزنبل الألفي
- arz
- ميريوفيلوم سبيكاتوم
- Belarusian
- Шышняк каласавы, Балотныя шышачкі, Шышняк
- Bulgarian
- Класовиден многолистник
- Catalan
- Llapó anguilenc
- Chinese
- 狐尾藻, 聚藻, 巨藻, 沙红柳, 泥茜, 穗状孤尾藻, 穗状狐尾藻, 金鱼藻
- Czech
- Stolístek klasnatý
- Dutch
- Aarvederkruid
- English
- Eurasian watermilfoil, Spiked water-milfoil
- Estonian
- Tähk-vesikuusk, Päine vesikuusk, Tähkjas vesikuusk
- Finnish
- Tähkä-ärviä
- French
- Myriophylle en épis, Myriophylle en épi
- German
- Ähriges Tausendblatt, Ähren-Tausendblatt, Ährenblütiges Tausendblatt
- Hebrew
- אלף עלה משובל
- hsb
- Kłosowy stolistnik
- Hungarian
- Füzéres süllőhínár, Vízi kapor
- Japanese
- ホザキノフサモ
- Macedonian
- Воден илјадалисник
- Norwegian Bokmål
- Akstusenblad
- Persian
- پر طاووسی سنبلهای
- Polish
- Wywłócznik kłosowy
- Portuguese
- Pinheirinha-da-água
- Romanian
- Prâsnel spicat, Prîsnel spicat
- Russian
- Уруть колосистая, Уруть колосовая
- Slovak
- Stolístok klasnatý
- Slovenian
- Klasasti rmanec
- Spanish
- Filigrana mayor
- Swedish
- Axslinga
- Ukrainian
- Уруть колосиста, Водопериця
- Welsh
- Myrdd-ddail ysbigog
Synonyms
- Myriophyllum spicatum var. spicatum
Flowers
- In flower
- July to September (from 113 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Alaska: introduced, Canada: introduced, Lower 48 states: introduced
Photos
FlowerPhoto: Patrice Dupont, CC BY 4.0, from iNaturalist 
FlowerPhoto: Robert H. Wardell, CC0, from iNaturalist 
FlowerPhoto: Patrice Dupont, CC BY 4.0, from iNaturalist 
FlowerPhoto: Erik, CC BY 4.0, from iNaturalist 
Photo: Wikimedia Commons contributor, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Benoit Renaud, CC BY 4.0, from iNaturalist 
Photo: Radio Tonreg from Vienna, Austria, CC BY 2.0, from Wikimedia Commons 
Photo: Alan Rockefeller, CC BY 4.0, from iNaturalist 
Photo: Donald Hobern from Copenhagen, Denmark, CC BY 2.0, from Wikimedia Commons 
Photo: Tom Erler, CC0, from iNaturalist 
Photo: Donald Hobern from Copenhagen, Denmark, CC BY 2.0, from Wikimedia Commons 
Photo: Thayne Tuason, CC BY-SA 4.0, from Wikimedia Commons
More in Myriophyllum
- Whorl-leaf watermilfoilMyriophyllum verticillatumHaloragaceae
- Alternateflower watermilfoilMyriophyllum alterniflorumHaloragaceae
- Parrot feather watermilfoilMyriophyllum aquaticumHaloragaceae
- Twoleaf watermilfoilMyriophyllum heterophyllumHaloragaceae
- Northern watermilfoilMyriophyllum sibiricumHaloragaceae
- Western watermilfoilMyriophyllum hippuroidesHaloragaceae
- Myriophyllum mattogrossensisHaloragaceae
- Cutleaf watermilfoilMyriophyllum pinnatumHaloragaceae
- Myriophyllum simulansHaloragaceae
- Russian water-milfoilMyriophyllum ussurienseHaloragaceae
- Low watermilfoilMyriophyllum humileHaloragaceae
- Andean watermilfoilMyriophyllum quitenseHaloragaceae
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.