pilewort

from WordNet (r) 3.0 (2006)

pilewort
    n 1: perennial herb native to Europe but naturalized elsewhere
         having heart-shaped leaves and yellow flowers resembling
         buttercups; its tuberous roots have been used as a poultice
         to relieve piles [syn: {lesser celandine}, {pilewort},
         {Ranunculus ficaria}]

from The Collaborative International Dictionary of English v.0.48

Pilewort \Pile"wort`\, n. (Bot.)
   A plant ({Ranunculus Ficaria} of Linn[ae]us) whose tuberous
   roots have been used in poultices as a specific for the
   piles. --Forsyth.
   [1913 Webster]

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