Bog Rush

Juncus biflorus

Found in pine savannas; pine flatwoods; roadsides, fields and disturbed ground; wet meadows; Coastal dunes and beaches; Coastal tidal marshes (salinity not stated). FloraQuest, phone app (app page) What its natural habitat tells you

Good

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

Profile 100%

Height: About 3.5 feet
Light: Partial shade, Full sun
Soil moisture: Moist to wet

Will it fit your yard?

Juncus biflorus — fruit photograph — Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Courtesy of USDA NRCS Wetland Science Institute. · Public domain · Original photograph

At a glance

Bloom: June to October
Fruiting season: Summer

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Not yet recorded · Spread · Life cycle · Leaves

Recorded in 66 Virginia counties.

Natural habitats

Places it grows wild. Not a planting requirement.

1 of 3

Sandy pine savanna. Shown: Shaken Creek Preserve, Pender and Onslow Counties, North Carolina, a neighboring state.Sandy Pine Savanna, Rush Featherling subtype, Robert Thornhill, undated. CC BY 4.0. Source record.

Wet pine flatwoods with a shrub layer. Shown: Shaken Creek Preserve, Pender and Onslow Counties, North Carolina, a neighboring state.Wet Pine Flatwoods, Shaken Creek Preserve - typical shrub layer, Robert Thornhill, undated. CC BY 4.0. Source record.

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.

Habitats

Pine savannas; pine flatwoods; roadsides, fields and disturbed ground; wet meadows; Coastal dunes and beaches; Coastal tidal marshes (salinity not stated).

Each habitat page lists the plants and wildlife also found there. All habitats

Ecological relationships

Who uses this plant?

What these records mean

8CaterpillarsGenus host records with ranges including VA

Genus host records with ranges including VA · Juncus

Acronicta insularisHenry's Marsh Moth, Cattail Caterpillar
Bactra furfuranaRush Bactra
Bactra verutanaJavelin Moth
Cisseps fulvicollisYellow-Collared Scape Moth
Coleophora cratipennellaStreaked Coleophora
Globia subflavaYellow Sedge Borer, Yellowish Nonagria, Subflava Sedge Borer
Xylena nuperaRed Swordgrass Moth, American Swordgrass Moth, False Armyworm
Coleophora fagicorticella

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

2BeesSoutheastern regional records

Southeastern regional records · Juncus

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 · Juncus

Alectoris chukarChukar
Anas acutaNorthern Pintail
Coturnicops noveboracensisYellow Rail
Lagopus leucuraWhite-tailed Ptarmigan
Plectrophenax nivalisSnow Bunting

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: Juncaceae
Flower color: Red
Growth rate: Rapid
Growth habit: Spreads by rhizomes
Foliage color: Green
Fruit begins: Summer
Fruit ends: Summer

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

Growing sources and scope

Bloom · “June to October” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
Flower color · “Red” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Foliage 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 · “Summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Growth habit · “Spreads by rhizomes” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Growth rate · “Rapid” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Height · “About 3.5 feet” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Light · “Partial shade; Full sun (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
Soil · “Moist; Wet (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia

Conservation status

Virginia rank	S5?
Global rank	G5
VA status	Not verified
Federal status	Not verified

Conservation source Global and federal source

In your garden

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Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

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How to check your spot

Growing cautions

Spreads by rhizomes. USDA PLANTS lists its growth form as rhizomatous. USDA PLANTS

For planning only; these do not change the score or Fit.

Bog Rush

At a glance

Natural habitats

Habitats

Who uses this plant?

Plant details

Conservation status

Will it fit your yard?

Growing cautions

Sources

More Juncus