E·del·weiss n.  Bot. A little, perennial, white, woolly plant (Leontopodium alpinum), growing at high elevations in the Alps.  It is the national flower of Austria.
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  Leontopodium alpinum
       n : alpine perennial plant native to Europe having leaves
           covered with whitish down and small flower heads held in
           stars of glistening whitish bracts [syn: edelweiss]