Oregon Grape
Image: lokechin (cc-by-nc)
NameOregon Grape
Scientific NameMahonia aquifolium
Common NamesOregon Grape, Holly-leaved Barberry, Mountain Grape
Plant FamilyBerberidaceae
Natural HabitatIt thrives in open woodlands, forest edges, and clearings, often found in rocky or sandy soils. It can grow from sea level up to subalpine elevations.
Parts Usedroot,bark
Medicinal Actionsantimicrobial,anti-inflammatory,antioxidant,astringent
Traditional UsesTraditionally, Native American tribes used Oregon Grape for various ailments, including digestive issues, skin conditions like psoriasis and eczema, and as a general tonic. It is valued for its liver-supporting properties and its ability to stimulate bile flow.
Active ConstituentsBerberine, Oxyacanthine, Hydrastine, Palmatine
Preparation Methodsdecoction,tincture,powder,salve
Contraindications & WarningsNot recommended for pregnant or breastfeeding women due to the berberine content. It can interact with certain medications, including blood thinners and drugs metabolized by the liver. High doses may cause gastrointestinal upset.
Cultivation NotesOregon Grape prefers partial shade to full sun and well-drained soil. It is drought-tolerant once established and can be propagated by seed, cuttings, or division. It is a relatively low-maintenance plant.
Raritycommon
Description
Oregon Grape is an evergreen shrub native to western North America, characterized by its spiny, holly-like leaves that often turn reddish in cooler temperatures. It produces clusters of bright yellow flowers in spring, followed by dark blue, tart berries resembling small grapes.
