is a species of Artemisia, native to temperate regions of Eurasia and Northern Africa and widely naturalized in Canada and the northern United States. It is grown as an ornamental plant and is used as an ingredient in the spirit absinthe as well as some other alcoholic drinks.
Artemisia absinthium is a herbaceous, perennial plant with fibrous roots. The stems are straight, growing to 0.8–1.2 metres (2 ft 7 in–3 ft 11 in) (rarely 1.5 m, but, sometimes even larger) tall, grooved, branched, and silvery-green. The leaves are spirally arranged, greenish-grey above and white below, covered with silky silvery-white trichomes, and bearing minute oil-producing glands; the basal leaves are up to 25 cm long, bipinnate to tripinnate with long petioles, with the cauline leaves (those on the stem) smaller, 5–10 cm long, less divided, and with short petioles; the uppermost leaves can be both simple and sessile (without a petiole). Its flowers are pale yellow, tubular, and clustered in spherical bent-down heads (capitula), which are in turn clustered in leafy and branched panicles. Flowering is from early summer to early autumn; pollination is anemophilous. The fruit is a small achene; seed dispersal is by gravity.
It grows naturally on uncultivated, arid ground, on rocky slopes, and at the edge of footpaths and fields. This plant, and its cultivars ‘Lambrook Mist’ and ‘Lambrook Silver’ have gained the Royal Horticultural Society’s Award of Garden Merit.
It is an ingredient in the spirit absinthe, and is used for flavouring in some other spirits and wines, including bitters, vermouth and pelinkovac. In the Middle Ages, it was used to spice mead, and in Morocco it is used as tea. In 18th century England, wormwood was sometimes used instead of hops in beer.
Artemisia comes from Ancient Greek ἀρτεμισία, from Ἄρτεμις (Artemis). In Hellenistic culture, Artemis was a goddess of the hunt, and protector of the forest and children. absinthumcomes from the Ancient Greek ἀψίνθιον.
The word “wormwood” comes from Middle English wormwode or wermode. The form “wormwood” is attributable to its traditional use as a vermifuge. Webster’s Third New International Dictionary attributes the etymology to Old English wermōd (compare with German Wermut and the derived drink vermouth), which the OED (s.v.) marks as “of obscure origin”.