ashweed

from 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]

from The Collaborative International Dictionary of English v.0.48

Ashweed \Ash"weed`\, n. (Bot.) [A corruption of ache-weed; F.
   ache. So named from the likeness of its leaves to those of
   ache (celery).]
   Goutweed.
   [1913 Webster]