bur·dock /ˈbɝˌdɑk/
  牛蒡
  bur·dock /ˈbɝˌdɑk/ 名詞
  Bur·dock n.  Bot. A genus of coarse biennial herbs (Lappa), bearing small burs which adhere tenaciously to clothes, or to the fur or wool of animals.
  Note: ☞ The common burdock is the Lappa officinalis.
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  burdock
       n : any of several erect biennial herbs of temperate Eurasia
           having stout taproots and producing burs [syn: clotbur]