epi·phyte /ˈɛpəˌfaɪt/
  附生植物
  Ep·i·phyte n.
  1. Bot. An air plant which grows on other plants, but does not derive its nourishment from them. See Air plant.
  2. Med. A vegetable parasite growing on the surface of the body.
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  epiphyte
       n : plant that derives moisture and nutrients from the air and
           rain; usually grows on another plant but not parasitic on
           it [syn: air plant, aerophyte, epiphytic plant]