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Mahonia aquifolium Oregon grape Evergreen shrub (1 Page of 5) The Mahonia aquifolium plant species is found in Western N. America. Naturalized in Britain. It is a member of the Berberidaceae family. Common gardeners may know the plant as Oregon grape. Some home gardeners know the variety as Berberis aquifolium. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Mahonia aquifolium Common Name: Oregon grape Family: Berberidaceae Author: (Pursh.)Nutt. Known Hazards: None known Mature Height: 2 Mature Width: 1.5 Habitat: Mixed coniferous woods to 2000 metres. It is found in woods and hedgerows in Britain[17].
Medicinal Information: Oregon grape was often used by several native North American Indian tribes to treat loss of appetite and debility[254]. Its current herbal use is mainly in the treatment of gastritis and general digestive weakness, to stimulate the kidney and gallbladder function and to reduce catarrhal problems[254, 257].
The root and root bark is alterative, blood tonic, cholagogue, diuretic, laxative and tonic[4, 21, 165, 257]. It improves the digestion and absorption and is taken internally in the treatment of psoriasis, syphilis, haemorrhages, stomach complaints and impure blood conditions[4, 238]. Externally, it has been used as a gargle for sore throats and as a wash for blurry or bloodshot eyes[257]. The roots are harvested in late autumn or early spring and dried for later use[238].
The fruit is an excellent gentle and safe 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].
For further Mahonia aquifolium gardening information click on one of the blue links below 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'. View their bibliography

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