Sisyrinchium angustifolium, commonly known as narrow-leaf blue-eyed-grass, is a herbaceous perennial growing from rhizomes, native to the eastern United States, stretching as far west as Texas and Kansas, where it is the most common blue-eyed grass. It is commonly cultivated as an ornamental.
Description 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, 7–10 mm (1⁄4–3⁄8 in), each tipped with a sharp point, veined, and darkening toward central yellow patch.
Ecology
Habitat S. angustifolium is most commonly found in habitats such as woodlands, meadows, and sandhill swales. This species possesses an intermediate shade tolerance and is adapted to both fine and medium-textured soils.
Phenology S. angustifolium tends to flower from January to May, with peak inflorescence occurring in the spring, around April.
Gallery
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: Oxford University Press – 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.
