Dwarf Spikerush
Eleocharis parvula
Found in tidal brackish and freshwater marshes, inland salt marshes, shallow waters of managed impoundments. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you
Native to Virginia. How scores work Is it native here?
Profile 94%
- Height
- About 1.2 feet
- Light
- Full sun
- Soil moisture
- Moist to wet
No photograph yet. Looking for an old drawing…
At a glance
- Bloom
- July to September
- Fruiting season
- Summer to fall
Not yet recorded · Spread · Life cycle · Leaves
Recorded in 22 Virginia counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Open, herb-covered wetlands with fresh, non-tidal water.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 127 animals.
- DunlinCalidris alpina
- Eurasian WigeonAnas penelope
- Fish CrowCorvus ossifragus
- Forster's TernSterna forsteri
- Glaucous GullLarus hyperboreus
- Glossy IbisPlegadis falcinellus
- Great Blue HeronArdea herodias
- Great EgretArdea alba
- Great Horned OwlBubo virginianus
- Green HeronButorides virescens
- Henslow's SparrowAmmodramus henslowii
- Hooded MerganserLophodytes cucullatus
- KilldeerCharadrius vociferus
- King RailRallus elegans
- Least BitternIxobrychus exilis
- Least SandpiperCalidris minutilla
- Least TernSternula antillarum
- Lesser Black-backed GullLarus fuscus
- Lesser ScaupAythya affinis
- Little Blue HeronEgretta caerulea
- Marsh WrenCistothorus palustris
- MerlinFalco columbarius
- Northern PintailAnas acuta
- Northern ShovelerAnas clypeata
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Who uses this plant?
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
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
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
Plant details
- Family
- Cyperaceae
- Flower color
- Green
- Growth rate
- Moderate
- Growth habit
- Spreads by runners
- Fruit begins
- Summer
- Fruit ends
- Fall
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “July to September” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition (ranked first; USDA PLANTS differs) · Carolinas and Georgia
- Flower color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit begins · “Summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit ends · “Fall” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth habit · “Spreads by runners” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Height · “About 1.2 feet” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Light · “Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Soil · “Moist; Wet (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Dwarf Spike Rush
Conservation status
| Virginia rank | S5 |
|---|---|
| Global rank | G5 |
| VA 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.
Growing cautions
- Spreads by runners. USDA PLANTS lists its growth form as stoloniferous. USDA PLANTS
For planning only; these do not change the score or Fit.
Sources
- Digital Atlas of the Virginia Flora
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- NatureServe Explorer
- 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