cone·flow·er /ˈkonˌflaʊ(ə)r/



 Cone·flow·er n.
 1. Any plant of the genus Rudbeckia; -- so called from the cone-shaped disk of the flower head. They are cultivated for their large usually yellow daisies with prominent central cones.  Also, any plant of the related genera Ratibida and Brauneria, the latter usually known as purple coneflower.

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 coneflower
      n 1: any of various plants of the genus Rudbeckia cultivated for
           their large usually yellow daisies with prominent
           central cones
      2: any of various perennials of the eastern United States
         having thick rough leaves and long-stalked showy flowers
         with drooping rays and a conelike center