Mahonia nervosa Oregon grape (Berberidaceae) Evergreen shrub

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Mahonia nervosa
Oregon grape
Evergreen shrub
(1 Page of 5)

The Mahonia nervosa plant species is found in Northwestern N. America. It is a member of the Berberidaceae family. Common gardeners may know the plant as Oregon grape. Some home gardeners know the variety as M. glumacea. Berberis glumacea. B. nervosa.

Cultivation | Propagation | General Uses
Medicinal | Edible Uses

Latin Name:  Mahonia nervosa
Common Name:  Oregon grape
Family:  Berberidaceae
Author:  (Pursh.)Nutt.

Known Hazards:  None known

Mature Height:  0.6   Mature Width:  1

Habitat:  Light dry woods and rocky ledges[60, 67].

Medicinal Information: The root is alterative and tonic[4]. It improves the digestion and absorption and is recommended in the treatment of psoriasis, syphilis and impure blood conditions[4, 257]. A decoction of the peeled and chopped root bark has been used as a wash in treating arthritis and as an eyewash for red itchy eyes[257]. The fruit is an excellent safe and gentle laxative[257]. Berberine, universally present in rhizomes of Mahonia species, has marked antibacterial effects[218] and is used as a bitter tonic[213]. Since it is not appreciably absorbed by the body, it is used orally in the treatment of various enteric infections, especially bacillary dysentery[218]. It should not be used with Glyccyrriza species (Liquorice) because this nullifies the effects of the berberine[218]. Berberine has also shown antitumour activity[218]. The root and rootbark are best harvested in the autumn[213].

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Cultivation | Propagation | General Uses
Medicinal | Edible Uses

The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'.
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