Source : Webster's Revised Unabridged Dictionary (1913)

Heather \Heath"er\ (?; 277. This is the only pronunciation in
   Scotland), n. [See {Heath}.]
   Heath. [Scot.]

         Gorse and grass And heather, where his footsteps pass,
         The brighter seem.                       --Longfellow.

   {Heather bell} (Bot.), one of the pretty subglobose flowers
      of two European kinds of heather ({Erica Tetralix}, and
      {E. cinerea}).

Source : WordNet®

Erica tetralix
     n : dwarf European shrub with rose-colored flowers [syn: {cross-leaved
         heath}, {bell heather}]