Juncus megacephalus

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Common name: Bighead rush[1], large-headed rush[2]

Juncus megacephalus
Juncus megacephalus BM.jpg
Photo by John B
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Moncots
Order: Juncales
Family: Juncaceae
Genus: Juncus
Species: J. megacephalus
Binomial name
Juncus megacephalus
M.A. Curtis
Natural range of Juncus megacephalus from USDA NRCS Plants Database.

Taxonomic Notes

Synonyms: none.[3]

Varieties: none.[3]


J. megacephalus is a perennial graminoid of the Juncaceae family native to North America.[1]


J. megacephalus is found along the southeastern coast of the United States from Texas to Maryland.[1]



J. megacephalus is found in brackish and freshwater marshes, bogs, wet prairies, interdune swales, ditches, and other wet open places.[2] Specimens have been collected from recently burned witchgrass slough and tidal marsh of a river.[4]


This plant blooms June through August.[3]

Fire ecology

J. megacephalus is not fire resistant, but has high fire tolerance.[1]

Conservation, cultivation, and restoration

J. megacephalus is listed as endangered/extirpated by the Maryland Department of Natural Resources Natural Heritage Program.[1]

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 1.4 USDA Plant Database https://plants.usda.gov/core/profile?symbol=JUME
  2. 2.0 2.1 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  3. 3.0 3.1 3.2 Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  4. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2018. Collectors: R.A. Norris, R.K. Godfrey, Cecil Slaughter, Dianne Hall, Kim Ponzio, Loran C. Anderson. States and counties: Florida (Wakulla, Jefferson, Brevard)