there is Sisyrinchium angustifolium of the family iridaceae:
this flower was found along West Street, by the cemetery, in Jackson, Mississippi. this flower is said to bloom in the spring and summer months. this specimen was taken on march 20th 2007 at 4:52 pm. this is technically winter, however, it is well know that in Mississippi, winter generally ends the last week in february or the first week of march. it is also well known that Mississippi has very little influence upon the structure of calenders and delineation of seasons.
this plant is native to North America.