Source : Webster's Revised Unabridged Dictionary (1913)

Marguerite \Mar"gue*rite\, n. [F., a pearl, a daisy. See
   {Margarite}.] (Bot.)
   The daisy ({Bellis perennis}). The name is often applied also
   to the ox-eye daisy and to the China aster. --Longfellow.

Source : WordNet®

Bellis perennis
     n : low-growing Eurasian plant with yellow central disc flowers
         and pinkish-white outer ray flowers [syn: {common daisy},
          {English daisy}]