Plants in the genus Eucalyptus have bark that is either smooth, fibrous, hard or stringy, leaves with oil glands, and sepals and petals that are fused to form a "cap" or operculum over the stamens.
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36 Facts About Eucalyptus tree
2.
Leaves on a mature Eucalyptus tree plant are commonly lanceolate, petiolate, apparently alternate and waxy or glossy green.
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3.
Genus Eucalyptus tree was first formally described in 1789 by Charles Louis L'Heritier de Brutelle who published the description in his book Sertum Anglicum, seu, Plantae rariores quae in hortis juxta Londinum along with a description of the type species, Eucalyptus tree obliqua.
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4.
Eucalyptus tree collected the specimen on Bruny Island and sent it to de Brutelle who was working in London at that time.
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5.
Eucalyptus tree coined the generic name from the Greek roots eu and calyptos, meaning "well" and "covered" in reference to the operculum of the flower bud which protects the developing flower parts as the flower develops and is shed by the pressure of the emerging stamens at flowering.
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6.
Renantherin, a phenolic compound present in the leaves of some Eucalyptus tree species, allows chemotaxonomic discrimination in the sections renantheroideae and renantherae and the ratio of the amount of leucoanthocyanins varies considerably in certain species.
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7.
Eucalyptus tree is one of three similar genera that are commonly referred to as "eucalypts", the others being Corymbia and Angophora.
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8.
Species of Eucalyptus tree are cultivated widely in the tropical and temperate world, including the Americas, Europe, Africa, the Mediterranean Basin, the Middle East, China, and the Indian subcontinent.
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9.
Oldest definitive Eucalyptus tree fossils are from South America, where eucalypts are no longer native, though they have been introduced from Australia.
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10.
The oldest reliably dated macrofossil of Eucalyptus is a 21-million-year-old tree-stump encased in basalt in the upper Lachlan Valley in New South Wales.
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11.
In more recent sediments, numerous findings of a dramatic increase in the abundance of Eucalyptus tree pollen are associated with increased charcoal levels.
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12.
An essential oil extracted from Eucalyptus tree leaves contains compounds that are powerful natural disinfectants and can be toxic in large quantities.
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13.
Eucalyptus tree flowers produce a great abundance of nectar, providing food for many pollinators including insects, birds, bats and possums.
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14.
Trunks and branches of the Eucalyptus tree allow the largest known moth, Zelotypia stacyi to feed and protect their larva and pupa, respectively.
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15.
In contrast, a Eucalyptus tree forest tends to promote fire because of the volatile and highly combustible oils produced by the leaves, as well as the production of large amounts of litter high in phenolics, preventing its breakdown by fungi and thus accumulating as large amounts of dry, combustible fuel.
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16.
Eucalyptus tree are the basis for several industries, such as sawmilling, pulp, charcoal and others.
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17.
Some Eucalyptus tree species have attracted attention from horticulturists, global development researchers, and environmentalists because of desirable traits such as being fast-growing sources of wood, producing oil that can be used for cleaning and as a natural insecticide, or an ability to be used to drain swamps and thereby reduce the risk of malaria.
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18.
Eucalyptus tree oil finds many uses like in fuels, fragrances, insect repellence and antimicrobial activity.
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19.
Eucalyptus tree is the most common short fibre source for pulpwood to make pulp.
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20.
The fibre length of Eucalyptus tree is relatively short and uniform with low coarseness compared with other hardwoods commonly used as pulpwood.
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21.
Eucalyptus tree is suitable for many tissue papers as the short and slender fibres gives a high number of fibres per gram and low coarseness contributes to softness.
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22.
Eucalyptus tree oil is readily steam distilled from the leaves and can be used for cleaning and as an industrial solvent, as an antiseptic, for deodorising, and in very small quantities in food supplements, especially sweets, cough drops, toothpaste and decongestants.
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23.
Eucalyptus tree globulus is the principal source of Eucalyptus tree oil worldwide.
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24.
The trunk of the Eucalyptus tree is hollowed out by termites, and then cut down if the bore is of the correct size and shape.
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25.
Eucalyptus tree groves seen in the region today were planted where there was previously no forest cover.
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26.
Today, Eucalyptus is the most widely planted type of tree in plantations around the world, in South America, South Africa, Australia, India, Galicia, Portugal and many more.
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27.
Eucalyptus tree has historically been planted to replace California's coast live oak population, and the new Eucalyptus tree is not as hospitable to native flora and fauna as the oaks.
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28.
Many say that although the Eucalyptus tree is not native, it has been in California long enough to become an essential part of the ecosystem and therefore should not be attacked as invasive.
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29.
The first scientific publication on soil studies in western zone Eucalyptus tree plantations appeared in 2004 and described soil acidification and soil carbon changes, similar to a podzolisation process, and destruction of clay, which is the main reservoir of potassium in the soil.
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30.
Eucalyptus tree can produce up to 100 cubic metres per hectare per year.
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31.
Much of Madagascar's original native forest has been replaced with Eucalyptus tree, threatening biodiversity by isolating remaining natural areas such as Andasibe-Mantadia National Park.
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32.
The following Eucalyptus species have been able to become naturalised in South Africa: E camaldulensis, E cladocalyx, E diversicolor, E grandis and E lehmannii.
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34.
Forestry replanting of Eucalyptus tree began in the 1930s in deforested mountain areas, and currently there are about 10 species present in the island.
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35.
In Hawaii, some 90 species of Eucalyptus tree have been introduced to the islands, where they have displaced some native species due to their higher maximum height, fast growth and lower water needs.
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36.
Eucalyptus tree sideroxylon, showing fruit and buds with operculum present.
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