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Herbal Glossary | Medicinal Glossary | Herbal Preparations | Ayervedic Formulas | Chinese Formulas White Oak
Scientific Names
Common Names
Parts Usually UsedBark Description of Plant(s) and CultureWhite oak is a large, native North American tree; usually 60-100 feet high, but may grow as tall as 150 feet with a trunk diameter up to 8 feet. White oak bark is pale gray, and the leaves have rounded or finger-shaped lobes. The alternate, deciduous leaves are bright green and hairless, widest beyond the middle, with 3-5 pairs of rounded lobes. Light brown, ovoid acorns grow on current year's twigs in bowl-shaped cups enclosing a quarter of the acorn. Other varieties: Red oak (Q. rubra); Black oak (Q. tinctoria);
English oak (Q. robur) Where FoundGrows from Canada southward to the Gulf of Mexico, as far west as
Texas. Found in upland woods. Medicinal PropertiesAstringent, tonic, antiseptic, anthelmintic, styptic Biochemical InformationCalcium, cobalt, 15-20% tannin, iron, phosphorus, potassium, sodium,
sulfur, and vitamin B12. Legends, Myths and StoriesThe acorns are astringent like the bark; but when shelled, ground into a meal and soaked in running water for a few hours, the tannic acid is leached out. They then may be used as a nutritive tonic for wasting diseases. In some areas, Native Americans would gather 500 lb. per family, which was a year's supply. These were stored and later used for bread, pudding, soup, etc., prepared fresh from the ground acorn. They also were known to have allowed acorn meal to go moldy in a dark, damp place, and then scrape the mold off for application to boils, sores, and other inflammations. There are about 40 species of the genus Quercus in China. UsesGood for hemorrhoids, PMS, varicose veins, goiter, gallstones, kidney stones, fever, sores, wounds, sore throat, canker sores, menstrual problems, gonorrhea, leukorrhea, stomach troubles, and bladder problems. Good for teeth. Tea used in enemas and douches. Used for chronic diarrhea, dysentery, ringworm, chronic mucous discharge, poison-ivy rash, burns, pinworms, hemostatic. Stops hemorrhages in the lungs, stomach, scrofula, and bowels, spitting of blood, stops vomiting. Used for inflammations, boils, sores, infections internally and externally. Folk cancer remedy. Since it contains tannin, experimentally, tannic acid is antiviral, antiseptic, antitumor and carcinogenic. Taken internally for poisoning by strychnine, veratrine, and other vegetable alkaloids. A poultice of powdered oak bark and wheat flour combined with a little boiled water draws out slivers or splinters and other foreign substances. A wash of oak, or oak combined with witch hazel bark, is an excellent night-time compress for varicose veins and broken capillaries under the skin. The galls have the same properties as the bark. Formulas or DosagesUse dried powdered bark from the branches. Infusion: steep 1 tbsp. bark in 1 pint water, simmering for 10 minutes. Take up to 3 cups a day. Decoction: use 1 oz. of inner bark and 2 pints of water, boiled down to 1 pint and strained. Take 1 cup every 1 to 2 hours until relief from diarrhea or dysentery if felt. Some reports of good results with powdered bark in gelatine capsules to relieve diarrhea or dysentery. Take 2 capsules swallowed with a glass of warm water 3 to 4 times a day. Wash, enema or douche: steep 1 heaping tsp. in 1 qt. water
for 30 minutes and strain. Apply often. Nutrient ContentCalcium, iron, phosphorus, potassium, sodium, and vitamin B12. How SoldCapsules WarningTannic acid is potentially toxic.
Bibliography
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Common
White Oak
Back to Eden
, by Jethro Kloss; Back to Eden Publishing Co., Loma Linda, CA 92354, Original copyright 1939, revised edition 1994
, by John Lust, Bantam Books, 666 Fifth Avenue, New York, NY. copyright 1974.Copyright © 1996-2010 Lynn DeVries, all rights reserved.