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Herb detail

Berberis aquifolium
Common Name	Mahonia aquifolia. Holly-leaved Barberry. Oregon G
	Pollinator Forage N,P
	Nectar 0
	Pollen 4
key name	Oregon Grape Root
Idententifing Character	It is a quickly-growing shrub about 6 feet high:
Stem	The bark is brown on the surface and yellow beneath.
Leaves	the oddly compound leaves have no spine at the base; they are evergreen and shining.
Flowers	The flowers grow in terminal racemes, are small and yellowish-green in colour,
Fruit	The purple berries are three- to nine-seeded
Taste
Odour
Root	The root is from 1/2 inch in diameter to 3 inches at the base of the stem, odourless, and with a bitter taste
Distribution
Constituents	The principal constituent is a high proportion of berberin, and there is also oxycanthin. Alkaloids (berberine, berbamine, oxyacanthine), chelidonic acid, resin, tannins. Berries are rich in vitamin C.<
Solvents
Dosage	10 to 30 drops.
administration
Formulas
Contra Indications	Use only the dried plant, as the fresh root can be excessively purgative and cause nausea. Avoid during pregnancy. Avoid in hyperthyroid conditions.
Chinese
Vetrinary
Sister Plants
Culinary
Cultivation
Harvest
Non Med
History
Reference
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