Habitat: Native to Australia; now cultivated mainly at the hill-stations of India.
English: Blue-Gum tree, Australian Gum tree.Ayurvedic: Tilaparna, Tailaparna, Sugandhapatra, Haritaparna Neela- niryaasa, Tribhandi, Triputaa, Sar- alaa, Suvahaa, Rechani, Nishotraa.Unani: Neelgiri oil.Siddha/Tamil: Karpooramaram.Action: Essential oil from leaves— antiseptic, antibiotic, antiviral, antifungal, antispasmodic, decon- gestant, antiasthmatic, expectorant, antirheumatic, diaphoretic. Used in chronic, bronchitis, migraine, congestive headache, neuralgia and ague, as an inhalant or internal medicine. Root—purgative.
Key application: Leaf tea for catarrhs of the respiratory tract. Oil used externally for rheumatic complaints, contraindicated internally in inflammatory diseases of the gastrointestinal tract, bile ducts, and in severe liver diseases. (German Commission E.) Oil—internally as adjuvant treatment of chronic obstructive respiratory complaints, including bronchitis and bronchial asthma, also for symptomatic relief of colds and catarrh of the upper respiratory tract; externally for symptomatic treatment of colds and rheumatic complaints. (ESCOP.) Leaf—antiseptic. (The British Herbal Pharmacopoeia.)E. globulus is the main commercial source of Eucalyptus leaf oil; yield is 2.12%; 1,8-cineole exceeds 70% (pharmaceutical grade oil requires a minimum cineole content of 70%).Several potent euglobals, having closely related acyl-phloroglucinol- monoterpene (or sesquiterpene) structures, are isolated from the leaves and flower buds. These compounds showed strong granulation-inhibiting activity and inhibition of TPA induced EBV (Epstein-Barr Virus) activation.Phloroglucin derivatives, isolated from leaves, showed better antiinflammatory activity than indomethacin.Natural antioxidants have also been isolated from the plant.Dosage: Leaf—50-100 ml infusion. (CCRAS.)... eucalyptus globulesFAMILY: Myrtaceae
SYNONYMS: Broad-leaf peppermint, blue peppermint, menthol-scented gum.
GENERAL DESCRIPTION: A robust, medium-sized eucalyptus tree, with a short trunk, spreading branches and fibrous grey bark. The young leaves are blue and heart-shaped, the mature leaves are very aromatic, thick and tapering at both ends.
DISTRIBUTION: Native to Tasmania and Australia, especially New South Wales and Victoria. Oil is also produced in South Africa.
OTHER SPECIES: There are two types of broad-leaved peppermint although they look identical – one is rich in cineol (E. dives var. C.) and one is rich in ‘piperitone’ (E. dives var. Type). It is also similar to the peppermint eucalyptus (E. piperita) and the grey or narrow-leaved peppermint (E. radiata var. phellandra). See also entry on Eucalyptus, blue gum and Botanical Classification section.
HERBAL/FOLK TRADITION: The aborigines used the burning leaves in the form of a fumigation for the relief of fever; ‘heat went out of sick man and into fire’.
ACTIONS: See Eucalyptus, blue gum.
EXTRACTION: Essential oil by steam distillation from the leaves and twigs.
CHARACTERISTICS: A colourless or pale yellow mobile liquid with a fresh, camphoraceous, spicy-minty odour.
PRINCIPAL CONSTITUENTS: Piperitone (40–50 per cent), phellandrene (20–30 per cent), camphene, cymene, terpinene and thujene, among others. It is sold as Grades A, B or C according to the exact balance of constituents.
SAFETY DATA: Non-toxic, non-irritant (in dilution), non-sensitizing. Eucalyptus oil is toxic if taken internally (see entry on eucalyptus blue gum).
AROMATHERAPY/HOME: USE
Skin Care: Cuts, sores, ulcers etc.
Circulation muscles and joints: Arthritis, muscular aches and pains, rheumatism, sports injuries, sprains, etc.
Respiratory System: Asthma, bronchitis, catarrh, coughs, throat and mouth infections, etc.
Immune System: Colds, fevers, ’flu, infectious illness, e.g. measles.
Nervous System: Headaches, nervous exhaustion, neuralgia, sciatica.
OTHER USES: Little used medicinally these days except in deodorants, disinfectants, mouthwashes, gargles and in veterinary practice. ‘Piperitone’ rich oils are used in solvents. Employed for the manufacture of thymol and menthol (from piperitone).
EUCALYPTUS, ... eucalyptus, broad-leaved peppermint
FAMILY: Myrtaceae
SYNONYMS: Gum tree, southern blue gum, Tasmanian blue gum, fever tree, stringy bark.
GENERAL DESCRIPTION: A beautiful, tall, evergreen tree, up to 90 metres high. The young trees have bluish-green oval leaves while the mature trees develop long, narrow, yellowish leaves, creamy-white flowers and a smooth, pale grey bark often covered in a white powder.
DISTRIBUTION: Native to Tasmania and Australia. Mainly cultivated in Spain and Portugal, also Brazil, California, Russia and China. Very little of this oil now comes from its native countries.
OTHER SPECIES: There are over 700 different species of eucalyptus, of which at least 500 produce a type of essential oil. Many have been extracted simply for experimental purposes, and research is still being carried out with regard to the different constituents of each oil. In general, they can be divided into three categories. 1. The medicinal oils containing large amounts of cineol (or eucalyptol), such as the blue gum, but increasingly the blue malee (E. polybractea), the narrow-leaved peppermint (E. radiata var. australiana) and the gully gum (E. smithii). 2. The industrial oils containing mainly piperitone and phellandrene, such as the peppermint eucalyptus (E. piperita), grey peppermint (E. radiata var. phellandra) and increasingly the broad-leaved peppermint (E. dives var. Type). 3. The perfumery oils containing mainly citronellal, such as the lemon-scented eucalyptus (E. citriodora). See also Botanical Classification section.
HERBAL/FOLK TRADITION: A traditional household remedy in Australia, the leaves and oil are especially used for respiratory ailments such as bronchitis and croup, and the dried leaves are smoked like tobacco for asthma. It is also used for feverish conditions (malaria, typhoid, cholera, etc.) and skin problems like burns, ulcers and wounds. Aqueous extracts are used for aching joints, bacterial dysentery, ringworms, tuberculosis, etc. and employed for similar reasons in western and eastern medicine. The wood is also used for timber production in Spain.
ACTIONS: Analgesic, antineuralgic, antirheumatic, antiseptic, antispasmodic, antiviral, balsamic, cicatrisant, decongestant, deodorant, depurative, diuretic, expectorant, febrifuge, hypoglycaemic, parasiticide, prophylactic, rubefacient, stimulant, vermifuge, vulnerary.
EXTRACTION: Essential oil by steam distillation from the fresh or partially dried leaves and young twigs.
CHARACTERISTICS: A colourless mobile liquid (yellows on ageing), with a somewhat harsh camphoraceous odour and woody-sweet undertone. It blends well with thyme, rosemary, lavender, marjoram, pine, cedarwood and lemon. (The narrow-leaved eucalyptus (E. radiata var. australiana) is often used in preference to the blue gum in aromatherapy work, being rich in cineol but with a sweeter and less harsh odour.)
PRINCIPAL CONSTITUENTS: Cineol (70–85 per cent), pinene, limonene, cymene, phellandrene, terpinene, aromadendrene, among others.
SAFETY DATA: Externally non-toxic, non-irritant (in dilution), non-sensitizing. ‘When taken internally eucalyptus oil is toxic and as little as 3.5ml has been reported as fatal’..
AROMATHERAPY/HOME: USE
Skin Care: Burns, blisters, cuts, herpes, insect bites, insect repellent, lice, skin infections, wounds.
Circulation Muscles And Joints: Muscular aches and pains, poor circulation, rheumatoid arthritis, sprains, etc.
Respiratory System: Asthma, bronchitis, catarrh, coughs, sinusitis, throat infections.
Genito-Urinary System: Cystitis, leucorrhoea.
Immune System: Chickenpox, colds, epidemics, ’flu, measles.
Nervous System: Debility, headaches, neuralgia.
OTHER USES: The oil and cineol are largely employed in the preparation of liniments, inhalants, cough syrups, ointments, toothpaste and as pharmaceutical flavourings also used in veterinary practise and dentistry. Used as a fragrance component in soaps, detergents and toiletries – little used in perfumes. Used for the isolation of cineol and employed as a flavour ingredient in most major food categories.... eucalyptus, blue gum