Source : Webster's Revised Unabridged Dictionary (1913)

Halesia \Ha*le"si*a\, n. [NL.] (Bot.)
   A genus of American shrubs containing several species, called
   {snowdrop trees}, or silver-bell trees. They have showy,
   white flowers, drooping on slender pedicels.

Source : WordNet®

Halesia
     n : deciduous small trees or shrubs of China and eastern North
         America [syn: {genus Halesia}]