grom·well /ˈgrɑmˌwɛl, wəl/
  Grom·well n.  Bot. A plant of the genus Lithospermum (L. arvense), anciently used, because of its stony pericarp, in the cure of gravel. The German gromwell is the Stellera. [Written also gromill.]
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  gromwell
       n : European perennial branching plant; occurs in hedgerows and
           at the edge of woodlands [syn: Lithospermum officinale]