The Collaborative International Dictionary of English v.0.48:

Goutweed \Gout"weed`\, Goutwort \Gout"wort`\n. [So called from
   having been formerly used in assuaging the pain of the gout.]
   (Bot.)
   A coarse umbelliferous plant of Europe (Aegopodium
   Podagraria); -- called also bishop's weed, ashweed, and
   herb gerard.
   [1913 Webster]