Japanese Sedge

Carex kobomugi

Found in sand dunes, especially on fore-dunes. FloraQuest, phone app (app page) What its natural habitat tells you

-15

Harmful

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

Profile 65%

Light: Full sun
Soil moisture: Dry to moist

Carex kobomugi — fruit photograph — (c) Timur Kalininsky, some rights reserved (CC BY) · CC BY 4.0 · Original photograph

Do not plant. Listed invasive in Virginia.

At a glance

Bloom: March to July

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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 6 Virginia counties.

Natural habitats

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

Dune grassland. Shown: Core Banks, Cape Lookout, North Carolina, a neighboring state.Core Banks dunes, June 2013, Jarek Tuszyński, June 2013. CC BY-SA 3.0. Source record.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

31CaterpillarsGenus host records with ranges including VA

Genus host records with ranges including VA · Carex

Acronicta insularisHenry's Marsh Moth, Cattail Caterpillar
Amolita roseolaPink Sedge Moth, Rosy Grass Moth
Amphipoea americanaAmerican Ear Moth, American Borer
Amphipoea interoceanicaStrawberry Cutworm, Interoceanic Ear Moth
Anatrytone loganDelaware Skipper, Logan Skipper, Black-Vein Skipper
Apamea indocilisIgnorant Apamea
Apamea sordensBordered Apamea, Rustic Shoulder-Knot
Cercyonis pegalaCommon Wood Nymph
Deltote belliculaBurnished Bog Moth, Bog Deltote, Bog Lithacodia
Euphyes bimaculaTwo-Spotted Skipper, Two-Spotted Sedge Skipper

Show all 31

Euphyes dionDion Skipper, Sedge Skipper
Euphyes dukesiDukes' Skipper
Euphyes vestrisDun Skipper, Dun Sedge Skipper, Sedge Witch)\
Helotropha reniformisAmerican Crescent Borer, Reniform Celaena, Reniform Helotropha
Hesperia leonardusLeonard's Skipper, Blazing Star Skipper, Pawnee Prairie Skipper, Pawnee Montane Skipper
Lethe appalachiaAppalachian Brown, Appalachian Eyed Brown
Leucania phragmitidicolaNeedle Wainscot, Phragmites Wainscot
Limochores mysticLong Dash
Loscopia velataVeiled Ear Moth, Veiled Grass Moth
Macrochilo absorptalisSlant-Lined Owlet; Slant-Lined Fan-foot
Maliattha synochitisBlack-Dotted Lithacodia, Black-Dotted Glyph, Brass-Dotted Grass Moth
Meropleon diversicolorMulticolored Sedgeminer
Mythimna oxygalaLesser Wainscot
Neonympha mitchelliiMitchell's Satyr
Papaipema nebrisStalk Borer
Plusia putnamiPutnam's Looper Moth, Lempke's Gold Spot
Poanes viatorBroad-Winged Skipper
Pseudeustrotia carneolaPink-Barred Lithacodia, Pink-Barred Pseudeustrotia
Spodoptera frugiperdaFall Armyworm Moth
Cosmopterix clemensella
Donacaula dispersella

Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)

—BeesSoutheastern regional records

—Specialist beesPollen specialists

50BirdsRecorded genus food-resource interactions; not a state feeding claim

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

Acanthis flammeaCommon Redpoll
Agelaius phoeniceusRed-winged Blackbird
Ammospiza leconteiiLeConte's Sparrow
Anas acutaNorthern Pintail
Anas creccaGreen-winged Teal
Anas platyrhynchosMallard
Anas rubripesAmerican Black Duck
Anser albifronsGreater White-fronted Goose
Anser caerulescensSnow Goose
Anser rossiiRoss's Goose

Show all 50

Anthus rubescensAmerican Pipit
Anthus spragueiiSprague's Pipit
Bonasa umbellusRuffed Grouse
Branta canadensisCanada Goose
Calcarius lapponicusLapland Longspur
Calcarius ornatusChestnut-collared Longspur
Calcarius pictusSmith's Longspur
Callipepla californicaCalifornia Quail
Cardinalis cardinalisNorthern Cardinal
Centrocercus urophasianusGreater Sage-Grouse
Colinus virginianusNorthern Bobwhite
Cygnus buccinatorTrumpeter Swan
Cygnus columbianusTundra Swan
Dendragapus obscurusDusky Grouse
Falcipennis canadensisSpruce Grouse
Fulica americanaAmerican Coot
Haemorhous mexicanusHouse Finch
Junco hyemalisDark-eyed Junco
Lagopus lagopusWillow Ptarmigan
Lagopus leucuraWhite-tailed Ptarmigan
Lagopus mutaRock Ptarmigan
Leucosticte atrataBlack Rosy-Finch
Mareca americanaAmerican Wigeon
Meleagris gallopavoWild Turkey
Melospiza melodiaSong Sparrow
Molothrus aterBrown-headed Cowbird
Pheucticus ludovicianusRose-breasted Grosbeak
Pinicola enucleatorPine Grosbeak
Pipilo maculatusSpotted Towhee
Plectrophenax nivalisSnow Bunting
Pooecetes gramineusVesper Sparrow
Porzana carolinaSora
Rallus limicolaVirginia Rail
Rhynchophanes mccowniiMcCown's Longspur
Spatula discorsBlue-winged Teal
Spinus psaltriaLesser Goldfinch
Spizella passerinaChipping Sparrow
Spizelloides arboreaAmerican Tree Sparrow
Zonotrichia atricapillaGolden-crowned Sparrow
Zonotrichia leucophrysWhite-crowned Sparrow

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

Bloom · “March to July” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
Light · “Full sun (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
Soil · “Dry; Moist (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia

Conservation status

Virginia rank	SNA
Global rank	GNR
VA status	Not verified
Federal status	Not verified

Conservation source Global and federal source

Native alternatives

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