Juncus marginatus

From Coastal Plain Plants Wiki
Jump to: navigation, search

Common names: grassleaf rush; grass-leaved rush; marginal rush

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: Juncus marginatus var. marginatus, Juncus marginatus var. setosus Coville, J. setosus (Coville)

Varieties: none


J. marginatus is a perennial graminoid in the Juncaceae family. It is native to North America [1]. 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" [2].


This species is native to the majority of the U.S. It is most common throughout the southeastern and eastern United States [1].



This species lives in "wet meadows, bogs, generally throughout in wet, sandy or peaty soil" [3]. Specimens have been collected from open pine-oak forest, moist loamy sandy, shore of pond, cypress gum pond, clearing of pine flatwood savanna, planted slash pine flatwoods, edge of stream, and basin swamp. [4]


J. marginatus flowers June through September [3].

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

  1. 1.0 1.1 USDA Plants Database URL: https://plants.usda.gov/core/profile?symbol=JUMA4
  2. UF IFAS Plant Directory URL: https://plants.ifas.ufl.edu/plant-directory/juncus-marginatus/
  3. 3.0 3.1 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  4. 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)