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Common Hornwort

Ceratophyllum demersum

Found in ponds, pools, slow-moving streams. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

13
Modest

Native to Mississippi (estimated). How scores work Is it native here?

Profile 88%

Light
Partial shade, Full sun
Soil moisture
Standing water
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
May to September
Fruiting season
Summer to fall

Not yet recorded · Height · Spread · Leaves

Height: NC species account not read yet.

Spread and leaves: no source found yet.

Recorded in 20 Mississippi counties.

Natural habitats

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

1 of 2

Ponds, lakes and their shores

Still water and its edges: ponds, lakes, millponds and reservoirs.

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Mississippi. Shared habitat, not food. 91 animals.

All wildlife of Mississippi

Ecological relationships

Who uses this plant?

What these records mean

0CaterpillarsGenus host records with ranges including MS
0BeesSoutheastern regional records
0Specialist beesPollen specialists
9BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Agelaius phoeniceusRed-winged Blackbird
  • Anas platyrhynchosMallard
  • Aythya affinisLesser Scaup
  • Aythya collarisRing-necked Duck
  • Cygnus olorMute Swan
  • Fulica americanaAmerican Coot
  • Gallinula galeataCommon Gallinule
  • Mareca streperaGadwall
  • Spatula clypeataNorthern Shoveler
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
Ceratophyllaceae
Flower color
Blue
Growth rate
Rapid
Growth habit
Several stems
Foliage color
Gray-green
Fruit begins
Summer
Fruit ends
Fall

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

Growing sources and scope
Also known as

Coons Tail

Conservation status

Mississippi rankSNR
Global rankG5
MS statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources