wind·flow·er /-ˌflaʊ(ə)r/
  白頭翁;秋牡丹
  Wind·flow·er n. Bot. The anemone; -- so called because formerly supposed to open only when the wind was blowing.  See Anemone.
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  windflower
       n : any woodland plant of the genus Anemone grown for its
           beautiful flowers and whorls of dissected leaves [syn: anemone]