Also found in: Dictionary, Thesaurus, Encyclopedia.
blessed thistleHerbal medicine
An annual herb that contains alkaloids, cnicin, mucilage and tannin; it is anti-inflammatory, diaphoretic, emetic and haemostatic. Blessed thistle has a long medicinal history, and was believed to be a cure-all; it has been used as a cardiovascular and gastrointestinal tonic, to increase the flow of breast milk, for arthritis, fever, headaches and menstrual cramping, and applied topically for abscesses, itching and wounds.
Blessed thistle is a potent emetic; it should not be used in pregnancy.
n See thistle, blessed.