rudbeckia hirta

from WordNet (r) 3.0 (2006)

Rudbeckia hirta
    n 1: the state flower of Maryland; of central and southeastern
         United States; having daisylike flowers with dark centers
         and yellow to orange rays [syn: {black-eyed Susan},
         {Rudbeckia hirta}, {Rudbeckia serotina}]

from The Collaborative International Dictionary of English v.0.48

Rudbeckia \Rud*beck"i*a\, 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.]

from The Collaborative International Dictionary of English v.0.48

Black-eyed Susan \Black"-eyed` Su"san\ (Bot.)
   (a) The coneflower, or yellow daisy ({Rudbeckia hirta}).
   (b) The bladder ketmie.
       [Webster 1913 Suppl.]