Smooth Blue Aster
This Smooth Aster is an Illinois native that typically occurs in prairies, rocky glades, dry open woods, roadside banks and thickets. Stems are usually unbranched with variable, mostly toothed, smooth, bluish green foliage. Small flowers (.75 to 1.25" across) with violet blue to purple (sometimes white) rays and yellow center disks appear in open, loose, panicle-like clusters in autumn. Attractive to butterflies. Taken Sun, Sept 22, 2013 in Litchfield, IL.