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®

heather
     n 1: common Old World heath represented by many varieties; low
          evergreen grown widely in the northern hemisphere [syn:
          {ling}, {Scots heather}, {broom}, {Calluna vulgaris}]
     2: interwoven yarns of mixed colors producing muted grayish
        shades with flecks of color [syn: {heather mixture}]