black horehound


  • WordNet 3.6
    • n black horehound ill-smelling European herb with rugose leaves and whorls of dark purple flowers
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Webster's Revised Unabridged Dictionary
    • Black horehound a disagreeable plant resembling horehound (Ballota nigra).
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In literature:

Take horehound herb, elecampane root, spikenard root, ginseng root, black cohosh, and skunk cabbage root, of each a good-sized handful.
"The Ladies Book of Useful Information" by Anonymous