bitter dock

(redirected from broad-leaved dock)
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Related to broad-leaved dock: spear thistle, Rumex crispus

bitter dock

Herbal medicine
A perennial herb, the leaves of which contain tannins and oxalic acid, an astringent. It has been used as a laxative, for skin rashes, itching and toothaches, and internally for menopausal symptoms.
References in periodicals archive ?
Council officers have drafted new policies in a bid to stop the spread of weeds such as invasive Japanese knotweed, giant hogweed, spear thistle, creeping thistle, field thistle, curled dock, broad-leaved dock and ragwort, which poisons grazing animals.