English, Oregon grape root, Holly-leaved barberry.
A bushy, branching shrub, having a woody root, brownish externally,
bright yellow internally, and a stem from 2 to 6 feet high. The
leathery leaves are pinnate, in 3 to 6 pairs, ovate to oblong-lanccolate
in equilateral or slightly cordate at the base, 1 ½ to 3 inches long, with
spinulose margins. The filaments are two toothed the yellow flowers are in
short upright clusters, and open early. A dark-purple, nearly spherical, few
seeded berry forms the fruit of this variety. As generally sold, the intensely
bitter tasting root appears in places about 12 inches long and ¼ inch thick. Its
yellow color within is due to the alkaloid berberin.
Found in :-
Western United States; especially abundant in the northern part of the Pacific coast.
The fresh bark of the root.
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(a)Tincture Q: = | Drug Strength 1/10 |
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Berberis aquifolium, moist magma containing solids | 100gm. |
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Plant moisture 100 Cc. | = 200 |
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Distilled water | 200 Cc |
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Strong alcohol | 730 Cc.
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To make one thousand cubic centimeters of tincture.
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(b) Dilutions: 2x to contain one part tincture, three parts distilled water, six parts alcohol; 3x and higher with dispensing alcohol.
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