Source : Webster's Revised Unabridged Dictionary (1913)

Bugbane \Bug"bane`\, n. (Bot.)
   A perennial white-flowered herb of the order
   {Ranunculace[ae]} and genus {Cimiciguga}; bugwort. There are
   several species.

Source : WordNet®

bugbane
     n 1: North American plant having large leaves and yellowish green
          flowers growing in racemes; yields a toxic alkaloid used
          medicinally [syn: {white hellebore}, {American hellebore},
           {Indian poke}, {Veratrum viride}]
     2: a plant of the genus Cimicifuga having flowers in long
        racemes or panicles reported to be distasteful to insects