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Swamp-forest Beaksedge

Rhynchospora decurrens

Found in swamp forests and river marshes, especially along blackwater rivers. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

39
Good

Native to Alabama. How scores work Is it native here?

Profile 88%

Height
Up to about 3 feet
Light
Full sun
Soil moisture
Moist to standing water
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At a glance

Life cycle
Annual or perennial
Bloom
July to August

Not yet recorded · Spread · Leaves

Recorded in 5 Alabama counties.

Natural habitats

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

1 of 3

Swamps

Loblolly bay in a coastal swamp
Regional / representative. Shown: Southern coastal swamps, Florida to Virginia; state not identified, a neighboring state.Loblolly bay in a coastal swamp, Marian Ellis Rowan, 1901. Public domain. Source record.

Freshwater marshes

Georgia pond and emergent wetland
Regional / representative. Shown: Chattahoochee River National Recreation Area, Georgia; representative pond ecosystem, a neighboring state.Georgia pond and emergent wetland, Robert 'Bob' Hynes, 1997. Public domain. Source record.

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

3CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · Rhynchospora

  • Euphyes dukesiDukes' Skipper
  • Lethe appalachiaAppalachian Brown, Appalachian Eyed Brown
  • Synchlora frondariaSouthern Emerald
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
4BeesSoutheastern regional records

Southeastern regional records · Rhynchospora

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
5BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Dendrocygna bicolorFulvous Whistling-Duck
  • Lagopus lagopusWillow Ptarmigan
  • Meleagris gallopavoWild Turkey
  • Rallus elegansKing Rail
  • Tyrannus tyrannusEastern Kingbird
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
Cyperaceae
Flower color
Brown

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

Growing sources and scope
Also known as

Swamp forest Beaksedge

Conservation status

Alabama rankSNR
Global rankG3G4
AL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources