Ballota nigra

Ballota nigra
Ballota nigra subsp. nigra in Lower Austria
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Ballota
Species:
B. nigra
Binomial name
Ballota nigra
Range of Ballota nigra. Green: native. Yellowish: introduced.
Synonyms
  • Marrubium nigrum (L.) Garsault
  • Ballota foetida Lam.
  • Ballota sordida Salisb.
  • Stachys ballota Kuntze
  • Ballota velutina Posp.
  • Ballota sepium Paulet ex Pers.
  • Ballota urticifolia Ortmann ex Nestl.
  • Ballota aristata Rchb.
  • Ballota ampliata Willd. ex Steud.
  • Ballota hirta Steud.
  • Ballota rubra Schrad. ex Steud.
  • Ballota bracteosa Ball
  • Ballota submitis (Borbás) Borbás

Ballota nigra, the black horehound, is a perennial herb in the family Lamiaceae. It is native to Europe, the Mediterranean region and east to central Asia. It is also naturalised in Argentina, New Zealand, and the eastern United States. It blooms in the Northern Hemisphere from May to August.