Prairie Coreopsis (tickseed)

Description:

This native perennial plant is 1-3' tall and unbranched. The central stem is hairless, except for small tufts of hair at the base of the leaves.The opposite leaves are about 2-4" long. They are usually divided into 3 narrow lobes, but are sometimes linear near the inflorescence. The larger central lobe may also be divided into 1 or 2 small narrow lobes. These leaves are medium to dark green, sessile, and hairless. They are distributed evenly along the stem

Notes:

Aster family (Asteraceae)