Oregon grape is a shrub that's native to North America, specifically the Pacific coastline. It is most commonly found in Oregon, hence its name. The plant is recognized by large, purple berries and small, yellow flowers. The root is golden yellow.
Oregon grape root contains several anti-microbial and anti-inflammatory compounds, such as berberine. While the root is usually decocted in boiling water for 15 minutes to produce a strong tea for drinking, the root may also be tinctured and added to topical ointments to address various skin conditions.