ballota nigra | sense examples, Usage and Definition from wordnet dictionary online

Noun ballota nigra has 1 sense

black horehound, black archangel, fetid horehound, stinking horehound, Ballota nigra - ill-smelling European herb with rugose leaves and whorls of dark purple flowers
--₁ is a kind of herb, herbaceous plant
--₁ is a member of Ballota, genus Ballota