Chenopodium ambrosioides

from WordNet (r) 3.0 (2006)

Chenopodium ambrosioides
    n 1: rank-smelling tropical American pigweed [syn: {American
         wormseed}, {Mexican tea}, {Spanish tea}, {wormseed},
         {Chenopodium ambrosioides}]

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]