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Dudley's Rush

Juncus dudleyi

Found in calcareous seepages and fens, river-scours. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

48
Good

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

Profile 88%

Height
1.5–2.5 feet
Spread
1–1.5 feet
Light
Full sun
Soil moisture
Somewhat dry to moist

Space about 1 ft apart from its recorded spread, about 100 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Bloom
June to September

Not yet recorded · Life cycle · Leaves

Recorded in 5 West 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

Seeps and springs

Places where groundwater keeps the soil or rock wet, such as seepage slopes and spring runs.

Mountain bogs and fens

Wet, open, peaty mountain wetlands fed by seepage, often with sphagnum moss.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

7CaterpillarsGenus host records with ranges including WV

Genus host records with ranges including WV · 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
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
Hardiness
Zones 3–9

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

Growing sources and scope
Also known as

Dudleys Rush

Conservation status

West Virginia rankS4
Global rankG5
WV statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Growing cautions

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

Sources