Noun
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
a wildflower of the genus Ratibida
any of various plants of the genus Rudbeckia cultivated for their large usually yellow daisies with prominent central cones
Source: WordNetAlso, it is well known that some have important medicinal properties, such as the Coneflower. Source: Internet