Distribution: Lowland areas west of the Cascades in Washington; currently only known from Washington.
Habitat: Disturbed ground.
Flowers: June-October
Origin: Introduced
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Ballota nigra in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Ballota nigra checklist entry.
OregonFlora: Ballota nigra information.
E-Flora BC: Ballota nigra atlas page.
CalPhotos: Ballota nigra photos.
USDA Plants: Ballota nigra information.