spleen·wort /-ˌwɝt, ˌwɔrt/
  鐵角鳳尾草屬的植物
  Spleen·wort n.  Bot. Any fern of the genus Asplenium, some species of which were anciently used as remedies for disorders of the spleen.
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  spleenwort
       n : any of various chiefly rock-inhabiting ferns of the genus
           Asplenium