Origanum vulgare
FAMILY: Lamiaceae (Labiatae)
SYNONYMS: European oregano, wild maqoram, common maqoram, grove marjoram, joy of the mountain, origanum (oil).
GENERAL DESCRIPTION: A hardy, bushy, perennial herb up to 90 cms high with an erect hairy stem, dark green ovate leaves and pinky-purple flowers. A common garden plant with a strong aroma when the leaves are bruised.
DISTRIBUTION: Native to Europe, now cultivated all over the world, including the USA, India and South America; the oil is mainly produced in the USSR, Bulgaria and Italy.
OTHER SPECIES: There is much confusion concerning the exact botanical classification of the marjoram and oregano species. There are over thirty varieties some of which are used to produce essential oils, such as the winter or Greek marjoram O. heracleoticum, the African species O. glandulosum, the Moroccan species O. virens, as well as the Mexican oregano Lippia graveolens or L. palmeri and the Syrian oregano (O. maru). However, most commercial ‘oregano oil’ is derived from the Spanish oregano (Thymus capitatus) and to a lesser degree from the common oregano or wild marjoram – see entries on Spanish oregano and sweet marjoram.
HERBAL/FOLK TRADITION: This is the ‘true’ oregano of the herb garden, which also has a very ancient medical reputation. It has been used as a traditional remedy for digestive upsets, respiratory problems (asthma, bronchitis, coughs, etc), colds and ’flu as well as inflammations of the mouth and throat.
In China it is also used to treat fever, vomiting, diarrhoea, jaundice and itchy skin conditions. The (diluted) oil has been used externally in herbal medicine for headaches, rheumatism, general aches and pains, and applied to stings and bites.
ACTIONS: Analgesic, anthelmintic, antirheumatic, antiseptic, antispasmodic, antitoxic, antiviral, bactericidal, carminative, choleretic, cytophylactic, diaphoretic, diuretic, emmenagogue, expectorant, febrifuge, fungicidal, parasiticide, rubefacient, stimulant, tonic.
EXTRACTION: Essential oil by steam distillation from the dried flowering herb.
CHARACTERISTICS: A pale yellow liquid (browning with age), with a warm, spicy herbaceous, camphoraceous odour. It blends well with lavandin, oakmoss, pine, spike lavender, citronella, rosemary, camphor and cedarwood.
PRINCIPAL CONSTITUENTS: Carvacrol, thymol, cymene, caryophyllene, pinene, bisabolene, linalol, borneol, geranyl acetate, linalyl acetate, terpinene. NB: Constituents are highly variable according to source, but oils classified as ‘oregano’ or ‘oreganum’ have thymol and/or carvacrol as their major components.
SAFETY DATA: Dermal toxin, skin irritant, mucous membrane irritant. Avoid during pregnancy.
AROMATHERAPY/HOME: USE None. ‘Should not be used on the skin at all.’.
OTHER USES: Used as a fragrance component in soaps, colognes and perfumes, especially men’s fragrances. Employed to some extent as a flavouring agent, mainly in meat products and pizzas.... oregano, common
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