Source : Webster's Revised Unabridged Dictionary (1913)

Toadflax \Toad"flax`\, n. (Bot.)
   An herb ({Linaria vulgaris}) of the Figwort family, having
   narrow leaves and showy orange and yellow flowers; -- called
   also {butter and eggs}, {flaxweed}, and {ramsted}.

Source : WordNet®

toadflax
     n : common European perennial having showy yellow and orange
         flowers; a naturalized weed in North America [syn: {butter-and-eggs},
          {wild snapdragon}, {devil's flax}, {Linaria vulgaris}]