Distribution of Mahonia aquifolium

Distribution Across the United States

U. S. Department of Agriculture.

Distribution Across California

Color Key: (also see note below map)
Blue indicates probable presence of the item.
Light Blue shows uncertain presence of the item.
Grey indicates the presence of the item is implied by range descriptions in the Jepson manual but has not been confirmed by other sources.
CalFlora Database

Oregon Grape Main