Source : Webster's Revised Unabridged Dictionary (1913)

Weigela \Wei"gel*a\, Weigelia \Wei*ge"li*a\, n. [NL. So named
   after C. E. Weigel, a German naturalist.] (Bot.)
   A hardy garden shrub ({Diervilla Japonica}) belonging to the
   Honeysuckle family, with white or red flowers. It was
   introduced from China.

Source : WordNet®

weigela
     n : deciduous shrub widely cultivated for its white or pink or
         red flowers [syn: {Weigela florida}]