Coralwort

from WordNet (r) 3.0 (2006)

coralwort
    n 1: European bittercress having a knotted white rootstock [syn:
         {coral-root bittercress}, {coralroot}, {coralwort},
         {Cardamine bulbifera}, {Dentaria bulbifera}]

from The Collaborative International Dictionary of English v.0.48

Coralwort \Cor"al*wort`\, n. (Bot.)
   A cruciferous herb of certain species of {Dentaria}; --
   called also {toothwort}, {tooth violet}, or {pepper root}.
   [1913 Webster]

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