bachelor's button

• n.
  • an annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers

    同义词： cornflower bluebottle Centaurea cyanus

  • tropical American herb having rose to red or purple flowers that can be dried without losing color

    同义词： globe amaranth Gomphrena globosa

以上来源于: WordNet