Quercus

Common Three Square Bulrush

Schoenoplectus pungens

Native to Kentucky (estimated)

Ecological relationships

Who uses this plant?

8CaterpillarsGenus host records with ranges including KY

Genus host records with ranges including KY · 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
  • Meropleon diversicolorMulticolored Sedgeminer
  • Cosmopterix scirpicola
  • Donacaula dispersella
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
27BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Agelaius phoeniceusRed-winged Blackbird
  • Anas platyrhynchosMallard
  • Anthus rubescensAmerican Pipit
  • Aythya affinisLesser Scaup
  • Aythya americanaRedhead
  • Aythya collarisRing-necked Duck
  • Aythya marilaGreater Scaup
  • Aythya valisineriaCanvasback
  • Bucephala clangulaCommon Goldeneye
  • Bucephala islandicaBarrow's Goldeneye
Show all 27
  • Calcarius lapponicusLapland Longspur
  • Calcarius pictusSmith's Longspur
  • Cygnus buccinatorTrumpeter Swan
  • Cygnus columbianusTundra Swan
  • Fulica americanaAmerican Coot
  • Gallinula galeataCommon Gallinule
  • Loxia curvirostraRed Crossbill
  • Mareca americanaAmerican Wigeon
  • Mareca streperaGadwall
  • Molothrus aterBrown-headed Cowbird
  • Oxyura jamaicensisRuddy Duck
  • Plectrophenax nivalisSnow Bunting
  • Porzana carolinaSora
  • Rallus limicolaVirginia Rail
  • Spatula cyanopteraCinnamon Teal
  • Spizelloides arboreaAmerican Tree Sparrow
  • Sturnus vulgarisEuropean Starling
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

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

Growing and identification

Plant details

Family
Cyperaceae
Flower color
Red or brown

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

Growing sources and scope
Also known as

Chairmakers Rush; Common Three Square Bulrush

Conservation status

Kentucky rankNot available
Global rankG5
KY statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your spot?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Sources