Peat

n.
Peat bog ,
a bog containing peat; also, peat as it occurs in such places; peat moss.
Peat moss
  1. The plants which, when decomposed, become peat
  2. A fen producing peat
    3. Peat reek ,
    the reek or smoke of peat; hence, also, the peculiar flavor given to whisky by being distilled with peat as fuel.