Sisyrinchium angustifolium, commonly known as narrow-leaf blue-eyed-grass,[2] is a herbaceous perennial growing from rhizomes, native to moist meadow and open woodland. It is the most common blue-eyed grass of the eastern United States, and is also cultivated as an ornamental.

Narrow-leaf blue-eyed-grass
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Iridaceae
Genus:	Sisyrinchium
Species:	S. angustifolium
Binomial name
Sisyrinchium angustifolium Mill.
Synonyms[1]
List Bermudiana angustifolia (Mill.) Kuntze Bermudiana graminea (Lam.) Nieuwl. 1913 not Gaertn. 1788 Bermudiana graminea Gaertn. 1788 not (Lam.) Nieuwl. 1913 Bermudiana graminifolia Medik. Bermudiana homomalla (Klatt) Kuntze Bermudiana iridifolia Medik. Ferraria pulchella Salisb. Ferraria violacea Salisb. Marica mucronata Ker Gawl. Sisyrinchium acuminatum Herb. Sisyrinchium anceps Cav. Sisyrinchium carolinianum E.P.Bicknell Sisyrinchium cultrifolium Noronha Sisyrinchium excisum Godr. Sisyrinchium gramineum Lam. Sisyrinchium graminoides E.P.Bicknell Sisyrinchium hibernicum Á.Löve & D.Löve Sisyrinchium homomallum Klatt Sisyrinchium iridioides Curtis Sisyrinchium membranaceum E.P.Bicknell Sisyrinchium nuttallii Sweet Sisyrinchium ramosum Herb.

Range: Eastern Canada and US, west to Texas and Minnesota, in meadows, low woods, and shorelines.

Height: 15–50 cm (6–20 in). Stem: broadly winged, 2–4 mm (1⁄16–3⁄16 in) wide, usually branched. Leaves: 2–6 mm (1⁄16–1⁄4 in) wide. Tepals: 6, blue,[3] 7–10 mm (1⁄4–3⁄8 in), each tipped with a sharp point, veined, and darkening toward central yellow patch.

Gallery

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  Flowers, stem, and leaves
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  Many, in grass
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  Bud before flowering and immature fruits
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  Flowers and fruits
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  flower, close

References

Further reading

• Cholewa, Anita F.; Henderson, Douglass M. (2002). "Sisyrinchium angustifolium". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 26. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
• Rhoads, Ann F.; Block, Timothy A. (2007). The Plants of Pennsylvania: An Illustrated Manual. Anna Anisko (Illustrator) (2nd ed.). University of Pennsylvania Press. ISBN 978-0-8122-4003-0.
• Gleason, Henry A.; Cronquist, Arthur (1991). Manual of Vascular Plants of Northeastern United States and Adjacent Canada (2nd ed.). The New York Botanical Garden Press. ISBN 0-89327-365-1.
• Thierer, John W.; Niering, William A.; Olmstead, Nancy C. (2001). National Audubon Society Field Guide to North American Wildflowers, Eastern Region (Revised ed.). Alfred A. Knopf. ISBN 0-375-40232-2.

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