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Variable-leaf Water-milfoil

Myriophyllum heterophyllum

Found in ditches, slow-moving waters of rivers and streams, pools, ponds, springs. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you

36
Good

Native to Florida. How scores work Is it native here?

Profile 76%

Light
Full sun
Soil moisture
Wet to standing water
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
April to October

Not yet recorded · Height · Spread · Leaves

Height: NC species account not read yet.

Spread and leaves: no source found yet.

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 25 Florida counties.

Natural habitats

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

1 of 4

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.

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

Seeps and springs

Places where groundwater keeps the soil or rock wet, such as seepage slopes and spring runs.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Florida. Shared habitat, not food. 116 animals.

All wildlife of Florida

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)
0BeesSoutheastern regional records
0Specialist 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

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Haloragaceae
Flower color
White

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

Growing sources and scope
Also known as

Southern Watermilfoil; Two Leaf Watermilfoil; Variable leaf Water milfoil

Conservation status

Florida rankSNR
Global rankG5
FL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources