Plant Description Cedar Creek Natural History Area 512 Aster azureus - Asteraceae. Leaves on stalk are long and narrow with serrations. Basal leaves are spade-shaped with a distinct petiole. Basal leaves have branchy venation and are usually rough with no serrations.
Rosettes are similar to basal leaves.
Flowerhead is large and branching with many pale purple daisy-like flowers with a yellow center. Solidago rigida basal leaves, Aster simplex , and Aster eracoides . Solidago rigida has more oval leaves with round serrations and soft pubescence. Aster simplex and Aster eracoides have white flowers. Aster simplex basal leaves are longer and more linear.