oxtongue

from WordNet (r) 3.0 (2006)
oxtongue
    n 1: widespread European weed with spiny tongue-shaped leaves
         and yellow flowers; naturalized in United States [syn:
         {oxtongue}, {bristly oxtongue}, {bitterweed}, {bugloss},
         {Picris echioides}]
    
from The Collaborative International Dictionary of English v.0.48
oxtongue \ox"tongue`\, ox-tongue \ox"-tongue`\, n. (Bot.)
   A widespread European weed ({Picris echioides} formerly
   {Helminthia echioides}) with spiny tongue-shaped leaves and
   yellow flowers. The name is applied to several plants, from
   the shape and roughness of their leaves; as, {Anchusa
   officinalis}, a kind of bugloss, and {Helminthia echioides},
   both European herbs. It has been naturalized in the U. S.

   Syn: bristly oxtongue, prickly oxtongue, bitterweed, bugloss.
        [1913 Webster + WordNet 1.5]
    

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