Blessed thistle is an annual, thistle-like member of the daisy family, native to the Mediterranean parts of Europe and to western and central Asia, and introduced elsewhere, where it is often a noxious weed. It sprawls rather than standing upright, reaching about 60 centimetres, with reddish stems, leathery, hairy leaves edged in small spines, and pale yellow flowerheads wrapped in spiny bracts; the whole plant wears a light down. Grieve says the name came from its fame as a heal-all, thought able even to cure the plague, and English plague treatises praised it. In Much Ado About Nothing Margaret prescribes distilled Carduus Benedictus to Beatrice, punning on Benedick. Culpeper calls it a herb of Mars under Aries. Herbalists gave it as a bitter tonic and to bring on sweating in fevers, and Grieve records the warm infusion as a favourite for increasing a nursing mother's milk, a use Wikipedia notes has no scientific support; Northcote calls its medicinal virtues discredited. It is also a flavouring in alcoholic drinks. In magic Cunningham has it worn to protect against evil, added to purifying baths and used in spells to break hexes.