1. Ill-smelling European herb with rugose leaves and whorls of dark purple flowers
   - black horehound, black archangel, fetid horehound, Ballota nigra

Derived forms: stinking horehounds

Type of: herb, herbaceous plant

Part of: Ballota, genus Ballota

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• ink
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• Inka
• inkberry
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• inkhorn
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• inking pad
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• inky
• inky cap