pinnate prairie coneflower, gray-head, yellow or prairie coneflower (ratibida pinnata) blooming with yellow flower

fall ratibida pinnata attractive autumn black bloom blooming botanic botanical botany center close closeup detailed flora floral florets flower heads flowering flowers foliage garden gardening globular grayhead growing growth leaves macro nature ornamental outdoors oval park parks petals pinnate prairie plant coneflower ray summer sunlight vegetation yellow gray-head shape