Berberis aquifolium/Mahonia aquifolium
MOUNTAIN GRAPE, OREGON GRAPE,
The root and rhizome of this shrub, which is a common garden plant, are
given by herbalists for inflammation of the digestive system, inflamed
joints, and skin problems.
A common garden plant in temperate countries, it originated in the mountains between Oregon in the United States and British Columbia in Canada and has been
introduced to other countries only since the mid-19th century. It is a tall shrub with large, holly-like, evergreen leaves,
clusters of small yellowish and strongly scented flowers,
and bunches of smooth dark-purple berries.
Alkaloids, including berberine,
hydrastine, and oxycanthine.
Laxative; suppresses nausea and vomiting; increases the flow of bile.
Used for inflammation of the stomach, gallbladder or intestines, and for inflamed joints in rheumatic disease.
Also given for skin complaints such as psoriasis and eczema.
Avoid in pregnancy.