Source : Webster's Revised Unabridged Dictionary (1913)

Milk vetch \Milk" vetch`\ (Bot.)
   A leguminous herb ({Astragalus glycyphyllos}) of Europe and
   Asia, supposed to increase the secretion of milk in goats.

   Note: The name is sometimes taken for the whole genus
         {Astragalus}, of which there are about two hundred
         species in North America, and even more elsewhere.

Source : WordNet®

Astragalus glycyphyllos
     n : European perennial [syn: {wild licorice}, {wild liquorice}]