viscum
  槲寄生
  Vis·cum n.
  1. Bot. A genus of parasitic shrubs, including the mistletoe of Europe.
  2. Birdlime, which is often made from the berries of the European mistletoe.
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  Viscum
       n : type genus of the Viscaceae: Old World evergreen shrubs
           parasitic on many trees including oaks but especially
           apple trees, poplars, aspens and cottonwoods [syn: genus
           Viscum]