Biology:Eucalyptus doratoxylon
| Spearwood mallee | |
|---|---|
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| Eucalyptus doratoxylon in the Stirling Range National Park | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Eucalyptus |
| Species: | E. doratoxylon
|
| Binomial name | |
| Eucalyptus doratoxylon F.Muell.[1]
| |
| Synonyms[1] | |
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Eucalyptus microstoma R.Br. ex Blakely | |
Eucalyptus doratoxylon, commonly known as the spearwood mallee,[2] spearwood[3] or geitch-gmunt in Noongar language[4][5][6] is a species of mallee that is endemic to Western Australia. It has smooth, powdery white bark, lance-shaped to curved adult leaves mostly arranged in opposite pairs, flower buds in groups of seven, white to pale yellow flowers and pendulous, more or less spherical fruit.
Description
Eucalyptus doratoxylon is a mallee, rarely a small tree, that typically grows to a height of 1.4–6 m (4 ft 7 in–19 ft 8 in) and forms a lignotuber. It has smooth, powdery white over reddish or greenish bark. Young plants and coppice regrowth have narrow elliptic to narrow lance-shaped leaves that are arranged in opposite pairs, 40–80 mm (1.6–3.1 in) long and 5–15 mm (0.20–0.59 in) wide. Adult leaves are also usually arranged in opposite pairs, glossy green, 42–95 mm (1.7–3.7 in) long and 5–16 mm (0.20–0.63 in) wide on a petiole 2–12 mm (0.079–0.472 in) long. The flower buds are arranged in groups of seven in leaf axils on an unbranched peduncle 8–20 mm (0.31–0.79 in) long, the individual buds on a pedicel 3–10 mm (0.12–0.39 in) long. Mature buds are pear-shaped to oval, creamy white, 8–11 mm (0.31–0.43 in) long and 3–4 mm (0.12–0.16 in) wide with a beaked operculum. Flowering occurs between August and March and the flowers are white to pale yellow. The fruit is a pendulous, woody, more or less spherical capsule 5–9 mm (0.20–0.35 in) long and 5–8 mm (0.20–0.31 in) wide with the valves near rim level.[3][7][2]
Taxonomy
Eucalyptus doratoxylon was first formally described in 1860 by the botanist Ferdinand von Mueller in Fragmenta Phytographiae Australiae from samples collected by George Maxwell in the Kojoneerup district.[8][9] The specific epithet is (doratoxylon) is derived from the Ancient Greek words dory, doratos meaning "spear" and xylon meaning "wood", possibly in reference to the use of the stems for spears.[3][10]
Distribution
Spearwood mallee grows in sandy loam or white-grey sandy soils in heath and open forest on hills and around granite outcrops along the south coast in the Esperance Plains, Jarrah Forest and Mallee biogeographic regions of Western Australia.[7][2]
Conservation status
Eucalyptus doratoxylon is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife[2]
Noongar Uses
Noongars used the branches to make spears: the bends in the branch were straightened over fire and the tips were sharpened using a chert flake.[5][11]
As with all other Eucalypts in the south-western region of Western Australia, the leaves of this species were crushed to make antibacterial poultices for wounds. They were also crushed and steamed to relieve nasal congestion. The gum was used after grinding, to make an ointment for sores, and also taken orally as a treatment for dysentery.[5]
See also
References
- ↑ 1.0 1.1 "Eucalyptus doratoxylon". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/71590.
- ↑ 2.0 2.1 2.2 2.3 "Eucalyptus doratoxylon". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/5627.
- ↑ 3.0 3.1 3.2 "Eucalyptus doratoxylon". Euclid: Centre for Australian National Biodiversity Research. https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_doratoxylon.htm.
- ↑ "Noongar names for plants". kippleonline.net. http://www.kippleonline.net/bobhoward/plantsframe.html.
- ↑ 5.0 5.1 5.2 Hansen, V.; Horsfall, J. (2016). Noongar Bush Medicine Medicinal Plants of the South-west of Western Australia. Crawley, WA: UWA Publishing. pp. 24,182–183. ISBN 9781742589060.
- ↑ Abbott, I. (1983) "Aboriginal names for plant species in south-western Australia." Technical Paper 5. Perth: Forests Department of Western Australia.
- ↑ 7.0 7.1 Chippendale, George M.. "Eucalyptus doratoxylon". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. https://profiles.ala.org.au/opus/foa/profile/Eucalyptus%20doratoxylon.
- ↑ "Eucalyptus doratoxylon". APNI. https://id.biodiversity.org.au/instance/apni/454973.
- ↑ von Mueller, Ferdinand (1860). Fragmenta phytographiae Australiae. Melbourne: Victoaian Government Printer. p. 55. https://www.biodiversitylibrary.org/item/7219#page/58/mode/1up. Retrieved 24 June 2019.
- ↑ Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 186. ISBN 9780958034180.
- ↑ Archer, W. (2016) Esperance wildflowers: Eucalyptus doratoxylon. Retrieved 19 August 2019.
Wikidata ☰ Q15396359 entry
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