Eucalyptus dura
| Eucalyptus dura | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Eucalyptus |
| Species: | E. dura |
| Binomial name | |
| Eucalyptus dura L. A. S. Johnson & K. D. Hill [1] | |
Eucalyptus dura, also known as the smooth-branched ironbark, or gum-topped ironbark, is a Eucalyptus tree of eastern Australia. It is a relatively uncommon[2] tree found on dry ridges and mountainous regions of north-east New South Wales and south-east Queensland, particularly around the McPherson Range and peaks such as Mount Greville.[3]
A medium-sized tree, it can grow to 15 metres (50 ft) tall. Major trunks have a dark, hard bark that is furrowed. In contrast, smaller branches near the top of the canopy have smooth white bark (hence the names "smooth-branched" and "gum-topped"). Leaves are alternate, concolorous (same colour in each side) or slightly discolorous and semi-glossy.[4] The leaves range in size from 15 to 30 millimetres (0.6 to 1.2 in) long. The woody fruits are 7–10 mm (0.28–0.39 in) long.[5]
The leaves of E. dura are rich in oils, particularly β-phellandrene and 1,8-cineole. These oils may be suitable for development of a bacteriostat. [6]
Photo gallery
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Deeply furrowed, tough bark from the lower trunk of Eucalyptus dura
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Smaller branches of Eucalyptus dura are smooth and silvery-grey near the canopy.
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Small, pear-shaped capsules with ribs of Eucalyptus dura
References
- ↑ K. D. Hill; Lawrence A. S. Johnson (1991). "Systematic studies in the eucalypts - 4. New taxa in Eucalyptus (Myrtaceae)". Telopea. 4 (2): 321–349.
- ↑ Queensland Museum (2005). Wild Plants of Greater Brisbane. South Brisbane, Queensland: Queensland Museum. p. 154. ISBN 0-9751116-2-0.
- ↑ "Eucalyptus dura". EucaLink: a Web Guide to the Eucalypts. Retrieved 2013-10-07.
- ↑ "More about the Ironbarks". Euclid: Eucalypts of Australia. Retrieved 2014-07-16.
- ↑ Leiper, G., Glazebrook, J., Cox, D. & Rathie, K. (2012). Mangroves to Mountains: A Field Guide to the Native Plants of South-east Queensland. Browns Plains, Queensland: Society for Growing Native Plants (Queensland Region) Inc. p. 501. ISBN 978-0-646-48846-2.
- ↑ Doimo, Luigino; Fletcher, Robert J.; D'Arcy, Bruce R.; Bird, Lloyd (1999). "A New Essential Oil from Eucalyptus dura L.A.S. Johnson & K.D. Hill". Journal of Essential Oil Research. Taylor & Francis. 11 (2): 149–150. doi:10.1080/10412905.1999.9701095.