Oregon grape botanical plate

Herb. No. 092 · Berberidaceae

RangeFig. atlas
Approximate native range — a teaching atlas, not a survey

Pacific Northwest Mahonia of dry woods from British Columbia to California.

Native · North America

Native Also grown
LegalCautionplant

Oregon grape

Mahonia aquifolium

Medicinal herbsHarvest

A holly-leaved west-coast shrub whose yellow root is a bitter berberine cousin of goldenseal.

Oregon grape is used as a goldenseal stand-in because both carry berberine. Traditional use is as a bitter for the gut and as a skin wash. Berberine is a real drug-like alkaloid: not for pregnancy, not a marathon internal, caution with many medicines. The blue berries are tart food once seeded, not the medicine.

Flavor

Root is shockingly bitter and yellowing. Berry is grape-sour once cooked.

Parts used

Root and rhizome · Berry as food

Helpful

  • A gardenable berberine shrub
  • Evergreen and native in the Pacific Northwest

Cautions

  • Berberine interactions
  • Bitter
  • Not for pregnancy

Field assistant

Ask about traditional use, safety, or the law. The assistant will not teach illegal cultivation or give medical orders.

Harvest this plant

When to cut, how to dry, and how to store it — garden and kitchen crops only.

Open harvest notes