Juncus marginatus

From Coastal Plain Plants Wiki
Jump to: navigation, search

Common names: grassleaf rush; grass-leaved rush; marginal rush[1]

Juncus marginatus
Juncus marginatus 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. marginatus
Binomial name
Juncus marginatuss
Natural range of Juncus marginatus from USDA NRCS Plants Database.

Taxonomic Notes

Synonyms: J. setosus (Coville) Small.[1]

Varieties: none.[1]


J. marginatus is a perennial graminoid in the Juncaceae family. It is native to North America [2]. This species is very similar to the many other species of rush "stems clump-forming, somewhat flattened, to 4 ft. tall; leaf blades flat, to 1/4 in. wide, pointed tips; inflorescences at stem tip, from very compact to much-branched and open, having several-200 clusters of flowers and fruits; flowers dark brown, stiff; seed capsules to 1/8 in. long, elliptic with rounded 3-lobed tops, reddish-brown, shiny; seeds irregular, amber" [3].


This range of this species extends north to Novia Scotia, Ontario, Michigan, and Nebraska, south to peninsular Florida, and west to Texas. There are also disjunct populations in California and South America.[1]



This species lives in "wet meadows, bogs, generally throughout in wet, sandy or peaty soil" [4]. Specimens have been collected from open pine-oak forests, moist loamy sands, pondshores, cypress gum ponds, cleared pine flatwood savannas, planted slash pine flatwoods, streambanks, and basin swamps. [5]


J. marginatus flowers June through September [4].

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 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.
  2. USDA Plants Database URL: https://plants.usda.gov/core/profile?symbol=JUMA4
  3. UF IFAS Plant Directory URL: https://plants.ifas.ufl.edu/plant-directory/juncus-marginatus/
  4. 4.0 4.1 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  5. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2018. Collectors: Loran C. Anderson, R.K. Godfrey, R.A. Norris, R.F. Doren, R. Komarek, Chris Buddenhagen, Austin Mast, Herbert Monoson, P.L. Redfearn, R. Kral, R. Kral, Jean Wooten, Richard Carter, Sharon Carter, M. Darst, A. Stiles. States and counties: Florida (Gadsden, Liberty, Wakulla, Hamilton, Leon, Franklin, Jackson, Holmes, Gulf, Charlotte, Washington, Okaloosa) Georgia (Brantley, Grady, Clinch, Atkinson)