Ballota nigra
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Noun | 1. | Ballota nigra - ill-smelling European herb with rugose leaves and whorls of dark purple flowers herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests Ballota, genus Ballota - perennial herbs or subshrubs of especially Mediterranean area: black horehound |
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