Eucalypts are tree species belonging to three closely related genera, Angophora, Corymbia and Eucalyptus.
Of these, Eucalyptus has the most species, the most-widely planted species and the biggest trees, so "eucalypt" refers most often to Eucalyptus.
To survive frequent bushfires the Eucalypts have developed a 'lignotuber' which is a resovoir of buds so that when small branches are destroyed a new bud can replace it.
b) In dry and arid conditions the eucalypt has the ability to turn its leaves on their edges, so as to reduce evaporation.
For more information about the topic Eucalyptus and related trees, read the full article at Wikipedia.org, or see the following related articles:
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