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