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American Frog's-bit

Limnobium spongia

22
Good

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

Profile 100%

Height
About 6 inches
Light
4 or more hours of direct sun
Soil moisture
Moist to wet
Will it fit your yard?

At a glance

Bloom
Mid spring
Fruiting season
Spring to fall

Not yet recorded · Spread · Life cycle · Leaves

Recorded in 39 Louisiana parishes.

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Louisiana. Shared habitat, not food. 117 animals.

Widespread birds also seen here (17)

Found in many habitats here, so not listed above.

All wildlife of Louisiana

Ecological relationships

Who uses this plant?

What these records mean

2CaterpillarsGenus host records with ranges including LA

Genus host records with ranges including LA · Limnobium

  • Elophila gyralisWaterlily Borer Moth
  • Elophila obliteralisWaterlily Leafcutter Moth
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
1BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Gallinula galeataCommon Gallinule
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
Hydrocharitaceae
Flower color
White
Growth rate
Moderate
Growth habit
Spreads by runners
Foliage color
Green
Fruit begins
Spring
Fruit ends
Fall

What its natural habitat tells you

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

Growing sources and scope
  • Bloom · “Mid spring” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Flower color · “White” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit begins · “Spring” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit ends · “Fall” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth habit · “Spreads by runners” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Height · “About 6 inches” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • primary_flower_color · “white” · USDA PLANTS
Also known as

American Frog's bit; American Frogs Bit; Spongeplant

Conservation status

Louisiana rankSNR
Global rankG4
LA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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How to check your spot

Growing cautions

  • Spreads by runners. USDA PLANTS lists its growth form as stoloniferous. USDA PLANTS

For planning only; these do not change the score or Fit.

Sources