Sisyrinchium angustifolium

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Common Names: narrowleaf blue-eyed grass[1]

Sisyrinchium angustifolium
Sisyrinchium angustifolium IWF.jpg
Photo by John Hilty hosted at
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Moncots
Order: Liliales
Family: Iridaceae
Genus: Sisyrinchium
Species: S. angustifolium
Binomial name
Sisyrinchium angustifolium
Natural range of Sisyrinchium angustifolium from USDA NRCS Plants Database.

Taxonomic Notes

Synonym: S. graminoides (E.P. Bicknell)

Variety: none


S. angustifolium is a perennial forb/herb of the Iridaceae family that is native to North America.[1]


S. angustifolium is found throughout the eastern North American Continent, as far west as Texas, Kansas, and Ontario, Canada.[1]



Typical habitats for this grass include woodlands, forests, meadows, and sandhill swales.[2] Specimens have been collected from pine savanna after a burn, drying sandy loam, dry upland pine-oak hickory woods near a river, and moist loamy sand near small pond.[3]

Soils with a medium to fine texture is more hospitable to S. angustifolium.[1]

The grass has a intermediate tolerance for shade and a low tolerance for shade.[1]


S. angustifolium has been observed to flower from January to May with peak inflorescence in April.[4]

Fire ecology

The grass has a high tolerance for fire.[1]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 1.4 1.5 USDA Plant Database
  2. Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  3. URL: Last accessed: June 2018. Collectors: Loran C. Anderson, R.A. Norris, R.K. Godfrey, R. Lomarek, Rodie White, Richard S. Mitchell, J. Kevin England, Marli Rikard. States and counties: Florida (Franklin, Wakulla, Jackson, Gilchrist, Levy, Alachua, Jefferson, Liberty, Leon, Gadsden, Holmes, Hamilton) Alabama (Winston) Georgia (Grady, Thomas)
  4. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. Accessed: 29 MAY 2018