Ballota nigra L.
Family: Lamiaceae
black horehound
[Ballota nigra subsp. ruderalis L.,  more]
Ballota nigra image
from USDA Plants website  
Etymology: Ballota: Greek but of uncertain origin
Plants: perennial, 12"-32" tall forb, aromatic, hairless; stems square
Leaves: opposite, short-stalked, oval to round, coarse rounded teeth at the edges
Flowers: pink to white, 5-parted, 1/2" long, strongly 2-lipped with the upper lip hairy and not divided flower drawing; inflorescence 4-8 flowered, separated whorls from the upper leaf axils; blooms June-Sept.
Fruits: 1-seeded nutlet
Habitat: disturbed areas
Conservation Status: Introduced - adventive
Ballota nigra image
Thomas Schöpke  
Ballota nigra image
Emmet J. Judziewicz  
Ballota nigra image
Ballota nigra image
Botanical Illustration  
Ballota nigra image
Emmet J. Judziewicz  
Ballota nigra image
Botanical Illustration  
Ballota nigra image
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