Slender Blue-eyed Grass, a native species, has been added to the USWildflowers database (05/03/2012.) Scientific name is Sisyrinchium mucronatum. Photo below was taken in Walker County, GA, on April 29, 2012. It is also known by the common name Needletip Blue-eyed Grass, Michaux’s Blue-eyed-Grass, and Narrow-Leaved Blue-eyed-Grass . Go to the Slender Blue-eyed Grass detail page for more information.

Needletip Blue-eyed Grass, Michaux's Blue-eyed-Grass, Slender Blue-eyed Grass, Narrow-Leaved Blue-eyed-Grass - Sisyrinchium mucronatum
This is a delightful image of a flower that I am very fond of.
Thanks, Mia. Blue-eyed Grasses are among my favorites, too.