Any of several South American woody shrubs or vines of the genus Bougainvillea having groups of three petallike,showy,variously colored bracts attached to the flowers.

 
  • 九重葛,一种九重葛属南美洲木本灌本或藤本植物,三片花瓣形艳丽而颜色丰富的花苞附在花上。
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