Common Three Square Bulrush
Schoenoplectus pungens
Native to Louisiana (estimated). How scores work Is it native here?
Profile 76%
- Height
- Up to about 6 feet
- Light
- 4 or more hours of direct sun
- Soil moisture
- Moist to wet
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
Not yet recorded · Spread · Leaves · Bloom
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 9 Louisiana parishes.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Louisiana. Shared habitat, not food. 89 animals.
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Northern PintailAnas acuta
- Northern ShovelerAnas clypeata
- Palm WarblerDendroica palmarum
- Peregrine FalconFalco peregrinus
- Pied-billed GrebePodilymbus podiceps
- Piping PloverCharadrius melodus
- Prairie WarblerDendroica discolor
- Purple GallinulePorphyrio martinica
- Purple MartinProgne subis
- Red KnotCalidris canutus
- Red-breasted MerganserMergus serrator
- Red-shouldered HawkButeo lineatus
- Ring-billed GullLarus delawarensis
- Ring-necked DuckAythya collaris
- Ring-necked PheasantPhasianus colchicus
- Roseate SpoonbillPlatalea ajaja
- Royal TernThalasseus maximus
- Ruddy DuckOxyura jamaicensis
- Ruddy TurnstoneArenaria interpres
- Rusty BlackbirdEuphagus carolinus
- Sandhill CraneGrus canadensis
- Sandwich TernThalasseus sandvicensis
- Savannah SparrowPasserculus sandwichensis
Widespread birds also seen here (18)
Found in many habitats here, so not listed above.
Who uses this plant?
11CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Scirpus
- Bactra furfuranaRush Bactra
- Bactra verutanaJavelin Moth
- Euphyes dionDion Skipper, Sedge Skipper
- Globia oblongaOblong Sedge Borer Moth, Large Noagria
- Ledaea perditalisLost Owlet, 3-Stripe Cephalanthus caterpillar, Buttonbush Owlet
- Bactra maiorina
- Cosmopterix attenuatella
- Cosmopterix ebriola
- Cosmopterix scirpicola
- Donacaula dispersella
Show all 11
- Thopeutis forbesellus
7BirdsRecorded eating Schoenoplectus 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.
- SoraSeeds. 12 diet records
- CanvasbackSeeds and roots. 3 diet records
- Snow GooseRoots. 2 diet records
- MallardSeeds. 2 diet records
- Northern PintailSeeds. 2 diet records
- Virginia RailSeeds. 2 diet records
- Lesser ScaupSeeds. 1 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 Schoenoplectus 7
Diet records by plant genus, from studies across North America. Not a record from this state. Avian Diet Database (Hurlbert Lab), CC0 1.0.
- SoraPorzana carolina
- CanvasbackAythya valisineria
- Snow GooseChen caerulescens
- MallardAnas platyrhynchos
- Northern PintailAnas acuta
- Virginia RailRallus limicola
- Lesser ScaupAythya affinis
Plant details
- Family
- Cyperaceae
- Flower color
- Red or brown
What its natural habitat tells you
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Red or brown” · Lady Bird Johnson Wildflower Center
- Height · “Up to about 6 feet” · Lady Bird Johnson Wildflower Center
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
Also known as
Chairmakers Rush
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)
- 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































