Sisyrinchium pruinosum

Dotted blue-eyed grass
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Iridaceae
Genus:	Sisyrinchium
Species:	S. pruinosum
Binomial name
Sisyrinchium pruinosum E.P.Bicknell 1901
Synonyms [1]
Sisyrinchium brayiE.P.Bicknell Sisyrinchium bushiiE.P.Bicknell Sisyrinchium helleriE.P.Bicknell Sisyrinchium texanumE.P.Bicknell Sisyrinchium variansE.P.Bicknell

Sisyrinchium pruinosum, the dotted blue-eyed grass, is a perennial plant in the family Iridaceae, native to the south-central United States. There are also reports of the plant in California, but these appear to represent naturalizations. ^[2] It is sometimes considered to be a synonym of Sisyrinchium langloisii . ^[3]

Description

• Plant: Upright or scrawling, clumped, delicate, smooth perennial 3.5-12 in. (9–30 cm) high; stems slender, usually several, unbranched, flattened, not conspicuously winged as in some species. ^[4]
• Flower: up to 1.125 in.(3 cm) across, violet-purple to purple-blue, rarely white, the 6 segments all appearing petal-like, wide-spreading. Flowers usually 1 or a few in cluster at tip of stem, closing during overcast weather. ^[4]
• Leaves: up to 9 in.(22.5 cm) long, .125 in.(3 mm) wide, basal, slender, grasslike and flattened like flower stem
• Habitat: Clay or sandy clay in open prairies, pastures, meadows, open woodlands and oak uplands. ^[4]

These plants are usually found in abundance and can be spectacular on warm, sunny days where they cover entire pastures with almost solid sheets of blue. They are very beautiful used as borders in the wildflower garden. Sisyrinchium species hybridize readily, often making species identification quite difficult. ^[5]

References

1. "The Plant List: A Working List of All Plant Species" . Retrieved June 24, 2014.
2. Biota of North America Program 2014 county distribution map
3. "United States Department of Agriculture plants profile: Sisyrinchium langloisii".
4. Flora of North America, Sisyrinchium pruinosum E. P. Bicknell, 1901.
5. Ajilvsgi, Geyata. 1984 - Wildflowers of Texas. Library of Congress: 84-50025