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Uses

Toxic parts

Citronellal, an essential oil found in most Eucalyptus species is reported to be mutagenic when used in isolation[1].

In large doses, oil of eucalyptus, like so many essential oils has caused fatalities from intestinal irritation[1]. Death is reported from ingestion of 4 - 24 ml of essential oils, but recoveries are also reported for the same amount[1]. Symptoms include gastroenteric burning and irritation, nausea, vomiting, diarrhoea, oxygen deficiency, ,weakness, dizziness, stupor, difficult respiration, delirium, paralysis, convulsions, and death, usually due to respiratory failure[1].

The plant is reported to cause contact dermatitis. Sensitive persons may develop urticaria from handling the foliage and other parts of the plant[1].

Edible uses

Notes

An essential oil from the fresh or dried leaves is used as a flavouring in sweets, baked goods, ice cream etc[2][3].

Unknown part

Material uses

The leaves and the essential oil in them are used as an insect repellent[4][5][6][7]. The trees can also be planted in wet areas where mosquitoes abound. The ground will be dried out by the trees, making it unsuitable for the mosquitoes to breed[8]. A decoction of the leaves is used for repelling insects and vermin[1]. Africans use finely powdered bark as an insect dust[1].

An essential oil is obtained from the leaves[9][10][11]. It is used in perfumery and in medicines[12]. The yield is about 0.9% by steam distillation[13]. The essential oil is also in spot removers for cleaning off oil and grease[8]. Yields of 40 to 45 kilos of oil per hectare have been reported[1]. A yellow/brown dye is obtained from the young leaves. It does not require a mordant[14]. Grey and green dyes are obtained from the young shoots[14]. A dark green dye is obtained from the young bark[14].

Wood - heavy[9][10], (or light according to another report[15]), durable, fire resistant[16]. An important timber species, it is used for various purposes such as carpentry, construction, fences, piles, platforms, plywood, poles, sheds, tool handles and veneer[8][1]. The oil-rich wood is resistant to termites[1]. This is one of the best eucalypts for pulp production for making paper[5][1].

Medicinal uses(Warning!)

Eucalyptus leaves are a traditional Aboriginal herbal remedy. The essential oil found in the leaves is a powerful antiseptic and is used all over the world for relieving coughs and colds, sore throats and other infections[17]. The essential oil is a common ingredient in many over-the-counter cold remedies[17].

The adult leaves, without their petioles, are antiperiodic, antiseptic, aromatic, deodorant, expectorant, febrifuge, hypoglycaemic and stimulant[18][19][20][9]. The leaves, and the essential oil they contain, are antiseptic, antispasmodic, expectorant, febrifuge and stimulant[21]. Extracts of the leaves have antibacterial activity[21]. The essential oil obtained from various species of eucalyptus is a very powerful antiseptic, especially when it is old, because ozone is formed in it on exposure to air. It has a decided disinfectant action, destroying the lower forms of life[18]. The oil can be used externally, applied to cuts, skin infections etc, it can also be inhaled for treating blocked nasal passages, it can be gargled for sore throat and can also be taken internally for a wide range of complaints[18]. Some caution is advised, however, because like all essential oils, it can have a deleterious effect on the body in larger doses[18]. The oil from this species has a somewhat disagreeable odour and so it is no longer used so frequently for medicinal purposes, other members of the genus being used instead[18]. An oleo- resin is exuded from the tree[8]. It can also be obtained from the tree by making incisions in the trunk[18][5]. This resin contains tannin and is powerfully astringent, it is used internally in the treatment of diarrhoea and bladder inflammation[18][5][8], externally it is applied to cuts etc[18][5].

The essential oil is used in aromatherapy. Its keyword is 'Respiratory system'[22].

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - surface sow February/March in a sunny position in a greenhouse[23][24][25]. Species that come from high altitudes appreciate 6 - 8 weeks cold stratification at 2°c[26]. Pot up the seedlings into individual pots as soon as the second set of seed leaves has developed, if left longer than this they might not move well. Plant out into their permanent positions in early summer and give them some protection from the cold in their first winter. The seed can also be sown in June, the young trees being planted in their final positions in late spring of the following year. The seed has a long viability[26].

Practical Plants is currently lacking information on propagation instructions of Eucalyptus globulus. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

Prefers a sunny position in a moderately fertile well-drained moisture retentive circum-neutral soil[26]. Succeeds in most soils[15], tolerating poor and dry soils, especially those low in mineral elements[26]. Established plants are drought tolerant[26]. Plants should not be grown in frost pockets or windy sites[27]. Requires a sheltered position, disliking cold, dry or desiccating winds[13]. Plants are reported to tolerate an annual precipitation of 80 to 160cm and an annual temperature range of ca 16 to 20°C[1].

This species is not very hardy in Britain, tolerating temperatures down to about -5°c[26] and often succumbing to heavy frosts[23][27][16]. There is a tree 35 metres tall on the Isle of Man, there are several taller trees in S. Ireland and a tree on the Isle of Wight was 20 metres tall when it was 9 years old from seed[23]. Eucalyptus species have not adopted a deciduous habit and continue to grow until it is too cold for them to do so. This makes them more susceptible to damage from sudden cold snaps. If temperature fluctuations are more gradual, as in a woodland for example, the plants have the opportunity to stop growing and become dormant, thus making them more cold resistant. A deep mulch around the roots to prevent the soil from freezing also helps the trees to survive cold conditions[26]. The members of this genus are remarkably adaptable however, there can be a dramatic increase in the hardiness of subsequent generations from the seed of survivors growing in temperate zones[26]. The Tasmanian blue gum is the most extensively planted eucalypt species in the world with a total of 800,000 ha in dozens of countries[1]. This species is commonly planted in S. Europe, especially in Italy, Spain and Portugal, for timber, soil stabilization and the essential oil in its leaves[28][10]. Trees have also been planted in marshy areas where they have the ability to reduce the wetness of the land (because they transpire so much water) thus getting rid of mosquitoes that were breeding there[18]. Eucalyptus monocultures are an environmental disaster, they are voracious, allelopathic and encourage the worst possible attitudes to land use and conservation[26]. A very fast growing tree, new growth can be up to 2.5 metres per year[23][29][27]. Trees are gross feeders and can severely stunt the growth of nearby plants[4]. Trees are very amenable to coppicing[29]. Plants are shallow-rooting and, especially in windy areas, should be planted out into their permanent positions when small to ensure that they do not suffer from wind-rock[30]. They strongly resent root disturbance and should be container grown before planting out into their permanent position[23]. The flowers are rich in nectar and are a good bee crop[14][26]. The bruised leaves emit a powerful balsamic smell[30].

This species is the national emblem of Tasmania[11][15].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Eucalyptus globulus. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Eucalyptus globulus.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Eucalyptus globulus
Genus
Eucalyptus
Family
Myrtaceae
Imported References
Edible uses
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
9
Heat Zone
?
Water
high
Sun
full sun
Shade
no shade
Soil PH
Soil Texture
Soil Water Retention
Environmental Tolerances
  • Drought
Ecosystems
Native Climate Zones
None listed.
Adapted Climate Zones
None listed.
Native Geographical Range
None listed.
Native Environment
None listed.
Ecosystem Niche
None listed.
Root Zone Tendancy
None listed.
Life
Deciduous or Evergreen
Herbaceous or Woody
Life Cycle
Growth Rate
Mature Size
Fertility
?
Pollinators
Flower Colour
?
Flower Type

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References

  1. ? 1.001.011.021.031.041.051.061.071.081.091.101.111.121.13 Duke. J. Handbook of Energy Crops - (1983-00-00)
  2. ? 2.02.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
  3. ? 3.03.1 Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
  4. ? 4.04.14.2 Holtom. J. and Hylton. W. Complete Guide to Herbs. Rodale Press ISBN 0-87857-262-7 (1979-00-00)
  5. ? 5.05.15.25.35.45.55.6 Lassak. E. V. and McCarthy. T. Australian Medicinal Plants. ()
  6. ? 6.06.1 Kariyone. T. Atlas of Medicinal Plants. ()
  7. ? 7.07.1 Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. (1986-00-00)
  8. ? 8.08.18.28.38.48.58.6 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
  9. ? 9.09.19.29.39.4 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
  10. ? 10.010.110.210.3 Usher. G. A Dictionary of Plants Used by Man. Constable ISBN 0094579202 (1974-00-00)
  11. ? 11.011.111.2 Cribb. A. B. and J. W. Useful Wild Plants in Australia. William Collins Pty Ltd. Sidney ISBN 0-00-216441-8 (1981-00-00)
  12. ? 12.012.1 Polunin. O. Flowers of Europe - A Field Guide. Oxford University Press ISBN 0192176218 (1969-00-00)
  13. ? 13.013.113.2 Ewart. A. J. Flora of Victoria. ()
  14. ? 14.014.114.214.314.4 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
  15. ? 15.015.115.215.3 Holliday. I. and Hill. R. A Field Guide to Australian Trees. Frederick Muller Ltd. ISBN 0-85179-627-3 (1974-00-00)
  16. ? 16.016.116.2 Arnberger. L. P. Flowers of the Southwest Mountains. Southwestern Monuments Ass. (1968-00-00)
  17. ? 17.017.117.2 Chevallier. A. The Encyclopedia of Medicinal Plants Dorling Kindersley. London ISBN 9-780751-303148 (1996-00-00)
  18. ? 18.018.118.218.318.418.518.618.718.818.9 Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (1984-00-00)
  19. ? 19.019.1 Chiej. R. Encyclopaedia of Medicinal Plants. MacDonald ISBN 0-356-10541-5 (1984-00-00)
  20. ? 20.020.1 Lust. J. The Herb Book. Bantam books ISBN 0-553-23827-2 (1983-00-00)
  21. ? 21.021.121.2 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
  22. ? 22.022.1 Westwood. C. Aromatherapy - A guide for home use. Amberwood Publishing Ltd ISBN 0-9517723-0-9 (1993-00-00)
  23. ? 23.023.123.223.323.423.5 Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (1981-00-00)
  24. ? Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
  25. ? Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. (1988-00-00)
  26. ? 26.0026.0126.0226.0326.0426.0526.0626.0726.0826.0926.10 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
  27. ? 27.027.127.2 Brooker. M. I. A Key to Eucalypts in Britain and Ireland. HMSO ISBN 0-11-710192-3 (1983-00-00)
  28. ? ? Flora Europaea Cambridge University Press (1964-00-00)
  29. ? 29.029.1 Arnold-Forster. Shrubs for the Milder Counties. ()
  30. ? 30.030.1 Genders. R. Scented Flora of the World. Robert Hale. London. ISBN 0-7090-5440-8 (1994-00-00)

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Facts about "Eucalyptus globulus"RDF feed
Article is incompleteYes +
Article requires citationsNo +
Article requires cleanupYes +
Belongs to familyMyrtaceae +
Belongs to genusEucalyptus +
Has binomial nameEucalyptus globulus +
Has common nameTasmanian Blue Gum +
Has drought toleranceTolerant +
Has edible partUnknown part +
Has edible useCondiment +
Has environmental toleranceDrought +
Has fertility typeBees +
Has flowers of typeHermaphrodite +
Has growth rateVigorous +
Has hardiness zone9 +
Has imageEucalyptus globulus - Köhler–s Medizinal-Pflanzen-147.jpg +
Has lifecycle typePerennial +
Has material partUnknown part +
Has material useCleanser +, Dye +, Essential +, Fuel +, Repellent + and Wood +
Has mature height55 +
Has mature width15 +
Has medicinal partUnknown part +
Has medicinal useAntibacterial +, Antiperiodic +, Antiseptic +, Antispasmodic +, Aromatherapy +, Aromatic +, Deodorant +, Expectorant +, Febrifuge +, Hypoglycaemic + and Stimulant +
Has primary imageEucalyptus_globulus_-_Köhler–s_Medizinal-Pflanzen-147.jpg +
Has search nameeucalyptus globulus + and tasmanian blue gum +
Has shade toleranceNo shade +
Has soil ph preferenceAcid +, Neutral + and Alkaline +
Has soil texture preferenceSandy +, Loamy + and Clay +
Has soil water retention preferenceWell drained +
Has sun preferenceFull sun +
Has taxonomic rankSpecies +
Has taxonomy nameEucalyptus globulus +
Has water requirementshigh +
Is deciduous or evergreenEvergreen +
Is herbaceous or woodyWoody +
Is taxonomy typeSpecies +
PFAF cultivation notes migratedNo +
PFAF edible use notes migratedNo +
PFAF material use notes migratedNo +
PFAF medicinal use notes migratedNo +
PFAF propagation notes migratedNo +
PFAF toxicity notes migratedNo +
Tolerates nutritionally poor soilNo +
Uses mature size measurement unitMeters +
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