Greater Coreopsis
Coreopsis major
Coreopsis major is an erect perennial up to three feet tall, branching above. Midstem leaves consist of a whorl of what appears to be six leaves, but is actually two opposite sessile leaves, each leaf divided into three narrow, lance-shaped segments. The flower-heads are one to two inches across with yellow ray flowers, and red or yellow disk flowers. The rays are not conspicuously toothed. Common in woodlands, thickets, and old fields.