Waterthread Pondweed
Potamogeton diversifolius
In the Carolinas and Georgia, found in pools, ponds, lakes, streams, rivers. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Louisiana (estimated). How scores work Is it native here?
Profile 100%
- Height
- About 3.2 feet
- Light
- Partial shade, Full sun
- Soil moisture
- Standing water
At a glance
- Bloom
- June to September
- Fruiting season
- Spring to fall
Not yet recorded · Spread · Life cycle · Leaves
Recorded in 33 Louisiana parishes.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Still water and its edges: ponds, lakes, millponds and reservoirs.
Streams, rivers and their banks
Flowing water and its banks, bars and rocky shoals.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Louisiana. Shared habitat, not food. 65 animals.
- Seaside SparrowAmmodramus maritimus
- Snowy EgretEgretta thula
- Song SparrowMelospiza melodia
- Spotted SandpiperActitis macularius
- Swainson's WarblerLimnothlypis swainsonii
- Swamp SparrowMelospiza georgiana
- Tufted TitmouseBaeolophus bicolor
- White IbisEudocimus albus
- White-breasted NuthatchSitta carolinensis
- Wild TurkeyMeleagris gallopavo
- Wilson's PloverCharadrius wilsonia
- Wilson's SnipeGallinago delicata
- Wilson's WarblerWilsonia pusilla
- Wood DuckAix sponsa
- Wood ThrushHylocichla mustelina
- Yellow-bellied SapsuckerSphyrapicus varius
- Yellow-billed CuckooCoccyzus americanus
Widespread birds also seen here (29)
Found in many habitats here, so not listed above.
- American Goldfinch
- American Kestrel
- American Robin
- Bald Eagle
- Black-crowned Night-heron
- Blue-gray Gnatcatcher
- Canada Goose
- Cedar Waxwing
- Chimney Swift
- Common Nighthawk
- Cooper's Hawk
- Double-crested Cormorant
- Eastern Kingbird
- European Starling
- Great Egret
- Great Horned Owl
- Mourning Dove
- Northern Cardinal
- Northern Flicker
- Northern Mockingbird
- Osprey
- Purple Finch
- Red-tailed Hawk
- Red-winged Blackbird
- Sharp-shinned Hawk
- Turkey Vulture
- Yellow-breasted Chat
- Yellow-crowned Night-heron
- Yellow-rumped Warbler
Who uses this plant?
6CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Potamogeton
- Elophila gyralisWaterlily Borer Moth
- Elophila obliteralisWaterlily Leafcutter Moth
- Parapoynx allionealisWatermilfoil Leafcutter, Bladderwort Casemaker
- Parapoynx badiusalisChestnut-Marked Pondweed Moth
- Parapoynx obscuralisObscure Pondweed Moth
- Parapoynx seminealisFloating-Heart Waterlilly Moth, Waterlily Casebearer
0BeesSoutheastern regional records
0Specialist beesPollen specialists
17BirdsRecorded eating Potamogeton in Louisiana
Diet records by plant genus, from studies across North America. Not a record from this state. Birds whose range includes Louisiana, most records first.
- American CootSeeds. 10 diet records
- MallardSeeds and leaves. 9 diet records
- Lesser ScaupSeeds and leaves. 5 diet records
- Ring-necked DuckSeeds. 5 diet records
- Greater Scaup4 diet records
- RedheadFlowers and leaves. 3 diet records
- Northern ShovelerLeaves and seeds. 3 diet records
- Wood DuckLeaves. 3 diet records
- CanvasbackSeeds. 2 diet records
- SoraLeaves. 2 diet records
Show all 17
- American Wigeon1 diet record
- Common GoldeneyeSeeds. 1 diet record
- Eurasian Wigeon1 diet record
- GadwallLeaves. 1 diet record
- Northern PintailRoots. 1 diet record
- Ruddy DuckSeeds. 1 diet record
- Surf Scoter1 diet record
Direct food only. 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
Birds that eat Potamogeton 17
Diet records by plant genus, from studies across North America. Not a record from this state. Avian Diet Database (Hurlbert Lab), CC0 1.0.
- American CootFulica americana
- MallardAnas platyrhynchos
- Lesser ScaupAythya affinis
- Ring-necked DuckAythya collaris
- Greater ScaupAythya marila
- RedheadAythya americana
- Northern ShovelerAnas clypeata
- Wood DuckAix sponsa
- CanvasbackAythya valisineria
- SoraPorzana carolina
- American WigeonAnas americana
- Common GoldeneyeBucephala clangula
- Eurasian WigeonAnas penelope
- GadwallAnas strepera
- Northern PintailAnas acuta
- Ruddy DuckOxyura jamaicensis
- Surf ScoterMelanitta perspicillata
Plant details
- Family
- Potamogetonaceae
- Flower color
- Red
- Growth rate
- Rapid
- Growth habit
- Grows in clumps
- Foliage color
- Green
- Fruit begins
- Spring
- Fruit ends
- Fall
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “June to September” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition (ranked first; USDA PLANTS differs) · Carolinas and Georgia
- Flower color · “Red” · 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 · “Grows in clumps” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth rate · “Rapid” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Height · “About 3.2 feet” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Light · “Partial shade; Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- primary_flower_color · “red” · USDA PLANTS
- Soil · “Water (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Water Thread Pond Weed
Conservation status
| Louisiana rank | SNR |
|---|---|
| Global rank | G5 |
| LA status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- Louisiana occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications