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Black Spikerush

Eleocharis nigrescens

Found in pond margins, pine flatwoods. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you

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Not native

Not native to Florida. How scores work Is it native here?

Profile 59%

Light
Full sun
Soil moisture
Moist to standing water

At a glance

Bloom
May to December

Not yet recorded · Height · Spread · Life cycle · Leaves

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 21 Florida counties.

Natural habitats

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

1 of 2

Ponds, lakes and their shores

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.

Pine flatwoods

Flat, sandy Coastal Plain pine woodlands, wetter than sandhills and denser than savannas.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

7CaterpillarsGenus host records with ranges including FL

Genus host records with ranges including FL · Eleocharis

  • Bactra furfuranaRush Bactra
  • Cisseps fulvicollisYellow-Collared Scape Moth
  • Elophila obliteralisWaterlily Leafcutter Moth
  • Parapoynx allionealisWatermilfoil Leafcutter, Bladderwort Casemaker
  • Donacaula dispersella
  • Eoparargyractis floridalis
  • Thopeutis forbesellus
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
—BeesSoutheastern regional records
—Specialist beesPollen specialists
14BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Agelaius phoeniceusRed-winged Blackbird
  • Anas creccaGreen-winged Teal
  • Anas rubripesAmerican Black Duck
  • Anser caerulescensSnow Goose
  • Antigone canadensisSandhill Crane
  • Aythya collarisRing-necked Duck
  • Branta canadensisCanada Goose
  • Dendrocygna bicolorFulvous Whistling-Duck
  • Fulica americanaAmerican Coot
  • Gallinula galeataCommon Gallinule
Show all 14
  • Mareca americanaAmerican Wigeon
  • Mareca streperaGadwall
  • Porzana carolinaSora
  • Spatula cyanopteraCinnamon Teal
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

Growing and identification

Plant details

Family
Cyperaceae

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

Growing sources and scope

Conservation status

Florida rankSNR
Global rankGNR
FL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

Native alternatives

Find natives for your garden

Sources