(n) the state flower of Maryland; of central and southeastern United States; having daisylike flowers with dark centers and yellow to orange rays, Syn.Rudbeckia hirta, Rudbeckia serotina
(n) tall leafy plant with erect branches ending in large yellow flower heads with downward-arching rays; grow in Rocky Mountains south to Arizona and east to the Atlantic coast, Syn.Rudbeckia laciniata
‖n. [ NL. So named after Olaf Rudebeck, a Swedish botanist. ] (Bot.) A genus of composite plants, the coneflowers, consisting of perennial herbs with showy pedunculate heads, having a hemispherical involucre, sterile ray flowers, and a conical chaffy receptacle. There are about thirty species, exclusively North American. Rudbeckia hirta, the black-eyed Susan, is a common weed in meadows. [ Webster 1913 Suppl. ]
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