Mexican poppy

from WordNet (r) 3.0 (2006)

Mexican poppy
    n 1: annual herb with prickly stems and large yellow flowers;
         southern United States to West Indies and Mexico [syn:
         {Mexican poppy}, {Argemone mexicana}]

from The Collaborative International Dictionary of English v.0.48

Mexican \Mex"i*can\, prop. a.
   Of or pertaining to Mexico or its people. -- n. A native or
   inhabitant of Mexico.
   [1913 Webster]

   {Mexican poppy} prop. n. (Bot.), a tropical American herb of
      the Poppy family ({Argemone Mexicana}) with much the look
      of a thistle, but having large yellow or white blossoms.
      

   {Mexican tea} prop. n. (Bot.), an aromatic kind of pigweed
      from tropical America ({Chenopodium ambrosioides}).
      [1913 Webster]