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Eurasian Water-milfoil

Myriophyllum spicatum

Found in ponds and impoundments. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you

-55
Severe harm

Not native to Florida. How scores work Is it native here?

Profile 71%

Height
1–9 feet
Light
Dappled sunlight, Deep shade, Full sun, Partial shade
Soil moisture
Wet to standing water

Do not plant. Listed invasive in Florida.

At a glance

Life cycle
Perennial
Bloom
April to October

Not yet recorded · Spread · Leaves

Recorded in 9 Florida counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Ponds, lakes and their shores

Georgia pond and emergent wetland
Regional / representative. Shown: Chattahoochee River National Recreation Area, Georgia; representative pond ecosystem, a neighboring state.Georgia pond and emergent wetland, Robert 'Bob' Hynes, 1997. Public domain. Source record.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

6CaterpillarsGenus host records with ranges including FL

Genus host records with ranges including FL · Myriophyllum

  • Argyrotaenia ivanaIvana Leafroller Moth
  • Choristoneura parallelaParallel-Banded Leafroller, Spotted Fireworm Moth
  • Elophila obliteralisWaterlily Leafcutter Moth
  • Parapoynx allionealisWatermilfoil Leafcutter, Bladderwort Casemaker
  • Parapoynx badiusalisChestnut-Marked Pondweed Moth
  • Spodoptera latifasciaOrange-Striped Armyworm, Velvet Armyworm Moth
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
—BeesSoutheastern regional records
—Specialist beesPollen specialists
7BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Myriophyllum

  • Anas platyrhynchosMallard
  • Aythya affinisLesser Scaup
  • Aythya collarisRing-necked Duck
  • Cygnus olorMute Swan
  • Fulica americanaAmerican Coot
  • Mareca americanaAmerican Wigeon
  • Mareca streperaGadwall
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

Growing and identification

Plant details

Family
Haloragaceae
Hardiness
Zones 3a–10b
Flower color
Yellow, pink or red

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Eurasian Water milfoil; Eurasian Watermilfoil

Conservation status

Florida rankSNA
Global rankGNR
FL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

Native alternatives

Find natives for your garden

Sources