oak

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oak

(ōk)
A deciduous tree (Quercus spp.) that provides material in its leaves and bark to produce many forms of herbal nostrums. Used as an astringent, a therapeutic remedy for skin disorders (approved for use for this purpose in Germany), and countless other unconfirmed purposes. Because of high levels of tannic acid, it has caused death, respiratory failure, and hepatotoxicity.

oak,

n Latin names:
Quercus robur, Quercus petraea, Quercus alba; parts used: bark, gall; uses: antiinflammatory, astringent, varicose veins, smoking cessation, hemorrhoids, gargle, skin conditions; precautions: pregnancy, lactation, children. Also called
British oak, brown oak, common oak, cortex quercus, ecorce de chene, eichenlohe, eicherinde, encina, English oak, gravelier, nutgall, oak apples, oak bark, oak galls, stone oak, or
tanner's bark.

oak

see quercus.

oak buds
see acorn.
References in periodicals archive ?
Experts have not yet reached a complete consensus regarding the decline of the oak trees.
Constantinou found that one of the oak trees, a protected species in Cyprus, had been completely cut down.
Cutting forest stands that contain oak trees is prohibited between April 15 and July 15, the period when sap-feeding beetles responsible for spreading oak wilt are most active.
If oak trees are accidentally wounded or pruning is unavoidable, cover the tree wounds within minutes, using a water-based paint or shellac.
Big Oak Tree is one of 78 state parks and historic sites in Missouri, which celebrated the 75th anniversary of its state park system in 1992.