tansy n : common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally [syn: golden buttons, scented fern, Tanacetum vulgare]
Pronunciation(US) IPA: /ˈtæn.zi/
Tansy (Tanacetum vulgare) is a perennial herbaceous flowering plant of the aster family that is native to temperate Europe and Asia. It has been introduced to other parts of the world and in some cases has become invasive. It is also known as Common Tansy, Bitter Buttons, Cow Bitter, Mugwort, or Golden Buttons.
DescriptionTansy is a flowering herbaceous plant with finely divided compound leaves and yellow, buttonlike flowers. It has a stout, somewhat reddish, erect stem, usually smooth, 50-150 cm tall, and branching near the top. The leaves are alternate, 10-15 cm long and are pinnately lobed, divided almost to the center into about seven pairs of segments or lobes which are again divided into smaller lobes having saw-toothed edges, thus giving the leaf a somewhat fernlike appearance. The roundish, flat-topped, buttonlike, yellow flower heads are produced in terminal clusters from mid to late summer. The scent is similar to that of camphor with hints of rosemary. The leaves and flowers are said to be poisonous if consumed in large quantities. The plant's volatile oil is high in thujone, a substance found in absinthe that can cause convulsions. Some insects, notably the tansy beetle, have evolved resistance to tansy and live almost exclusively on it.
History and distributionTansy is native to Eurasia; it is found in almost all parts of mainland Europe. It is absent from Siberia and some of the Mediterranean islands. The ancient Greeks may have been the first to cultivate it as a medicinal herb. In about 1525, it was listed (by the spelling "Tansey") as "necessary for a garden" in Britain.
ToxicityTansy contains volatile oils which can cause contact dermatitis in sensitive individuals and, if taken internally, result in toxic by-products being produced in the liver and digestive tract as the plant's oils are broken down. Tansy is highly toxic to internal parasites, and has been used by herbalists to expel worms for centuries. Because tansy contains thujone, the U.S. FDA limits tansy use to alcoholic beverages, and the final product must be thujone-free. Tansy is an effective insecticide, and is highly toxic to arthropods.
Culinary usesTansy was formerly used as a flavoring for puddings and omelets, but is almost unknown now. It was certainly relished in days gone by, for Gerarde speaks of them as "pleasant in taste", and he recommends tansy sweetmeats as "an especial thing against the gout, if every day for a certain space a reasonable quantitie thereof be eaten fasting". In Yorkshire, tansy and caraway seeds were traditionally used in biscuits served at funerals. Bitter tea made with the blossoms of T. vulgare has been effectively used for centuries as an anthelmintic (vermifuge). Tansy cakes were traditionally served during Lent because of a superstition that eating fish during Lent caused intestinal worms. Note that only T. vulgare is used in medicinal preparations; all species of tansy are toxic, and an overdose can be fatal. The dried flowering herb of Tanacetum is used ethnomedically to treat migraine, neuralgia, and rheumatism, and as an antihelminthic, in conjunction with a competent herbalist to circumvent any possible toxicity. Formerly, tansy was often used for its emmenagogue effects, but rumors have implicated tansy in cases of miscarriage. Pregnant women should avoid this herb.
Other usesIn England, bunches of tansy were traditionally placed at windows to keep out flies. Sprigs were placed in bedding and linen to drive away pests.
Tansy has been used throughout many Melbourne gardens and homes to keep away ants.
It is also used by some traditional dyers to produce a golden-yellow pigment. The yellow flowers are dried for use in floral arrangements.
Tansy is also used as a companion plant, especially with cucurbits like cucumbers and squash, or with roses or various berries. It is thought to repel ants, cucumber beetles, japanese beetles, squash bugs, and some kinds of flying insects, among others.
Tansy in art and literature
- A portion of a nineteenth-century poem by John Clare describes the delight of tansy and other herbs:
tansy in Breton: Gwaz (plant)
tansy in Bulgarian: Вратига
tansy in Catalan: Tanarida
tansy in Czech: Vratič obecný
tansy in Welsh: Tansi
tansy in Danish: Rejnfan
tansy in German: Rainfarn
tansy in Estonian: Harilik soolikarohi
tansy in Spanish: Tanacetum vulgare
tansy in French: Tanaisie commune
tansy in Haitian: Tanezi
tansy in Lithuanian: Paprastoji bitkrėslė
tansy in Limburgan: Wörmzäödsje
tansy in Hungarian: Gilisztaűző varádics
tansy in Dutch: Boerenwormkruid
tansy in Dutch Low Saxon: Boerenwurmkruud
tansy in Japanese: タンジー
tansy in Norwegian: Reinfann
tansy in Polish: Wrotycz pospolity
tansy in Portuguese: Catinga-de-mulata
tansy in Russian: Пижма обыкновенная
tansy in Slovak: Vratič obyčajný
tansy in Finnish: Pietaryrtti
tansy in Swedish: Renfana
tansy in Turkish: Solucanotu
tansy in Ukrainian: Пижмо звичайне