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Sharp Scale Spike Rush; Flat Stem Spike Rush

Eleocharis compressa var. compressa

Found in limestone or mafic glades and barrens, riverside scours. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

34
Good

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

Profile 53%

Light
4 or more hours of direct sun
Will it fit your yard?

Rare or protected plant. Specialist conservation planting; excluded from routine garden suggestions. Plant caution source

Hidden from default planting suggestions. Wildlife value and native status remain unchanged.

At a glance

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

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

Recorded in 9 Virginia 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

Glades, barrens and outcrops on limestone

Cedar glade in the Pennyroyal Plain, Simpson County
Limestone cedar glade. Shown: Pennyroyal Plain, Simpson County, Kentucky, a neighboring state.Cedar glade in the Pennyroyal Plain, Simpson County, Mason Brock (Masebrock), undated. Public domain. Source record.

Glades, barrens and outcrops on mafic or serpentine rock

Open, thin-soil openings, outcrops and cliffs on dark, magnesium- or iron-rich rock such as serpentine, diabase or gabbro.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 127 animals.

All wildlife of Virginia

Ecological relationships

Who uses this plant?

What these records mean

5CaterpillarsGenus host records with ranges including VA

Genus host records with ranges including VA · Eleocharis

  • Bactra furfuranaRush Bactra
  • Cisseps fulvicollisYellow-Collared Scape Moth
  • Elophila obliteralisWaterlily Leafcutter Moth
  • Parapoynx allionealisWatermilfoil Leafcutter, Bladderwort Casemaker
  • Donacaula dispersella
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist 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

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

Growing and identification

Plant details

Family
CYPERACEAE

Conservation status

Virginia rankS2
Global rankG5T5
VA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources