''Acacia doratoxylon'', commonly known as currawang, lancewood, spearwood or coast myall, is a shrub or tree belonging to the genus ''

Acacia ''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus na ...

'' and the subgenus ''Juliflorae'' that is native to eastern and south eastern

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

Description

The shrub or tree typically grows to a height of and a maximum height of and has a single stem with an erect to spreading habit. It has dark greyish brown to black coloured bark on the trunk which is corrugated. The

glabrous Glabrousness (from the Latin ''glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...

or appressed-hairy branchlets are angled towards the apices. Like most species of ''Acacia'' it has

phyllode Phyllodes are modified petioles or leaf stems, which are leaf-like in appearance and function. In some plants, these become flattened and widened, while the leaf itself becomes reduced or vanishes altogether. Thus the phyllode comes to serve the ...

s rather than true leaves. The green to bright green phyllodes have a narrowly elliptic to more or less linear shape and are straight to slightly curved. The phyllodes are glabrous with a length of and a width of with many faint longitudinal veins and one prominent mid-vein. It blooms between August to September in northern areas and September to November in southern areas and produces golden flowers. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s mostly occur in groups of two to five on an axillary axis that is in length. The cylindrical flowers heads have a length of and are densely packed with bright yellow flowers. Following flowering, usually from December to February, glabrous, papery and brittle

seed pod This page provides a glossary of plant morphology. Botanists and other biologists who study plant morphology use a number of different terms to classify and identify plant organs and parts that can be observed using no more than a handheld magnify ...

s form that are straight and flat but slightly raised and constricted between seeds and are in length and and have longitudinally arranged seeds inside towards seed.

Taxonomy

The species was first formally described by the botanist Allan Cunningham in 1825 in B. Field's work ''Geographical Memoirs on New South Wales''. It was reclassified by

Leslie Pedley Leslie Pedley (19 May 1930 – 27 November 2018)IPNILeslie Pedley/ref> was an Australian botanist who specialised in the genus ''Acacia''. He is notable for bringing into use the generic name ''Racosperma'', creating a split in the genus, which r ...

in 2003 as ''Racosperma doratoxylon'' and transferred back to genus ''Acacia'' in 2006. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

originates from the

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

words ''doratos'' meaning ''spear'' and ''xylon'' meaning ''wood'' in reference to the use of the wood by

Indigenous Australian Indigenous Australians or Australian First Nations are people with familial heritage from, and membership in, the ethnic groups that lived in Australia before British colonisation. They consist of two distinct groups: the Aboriginal peoples ...

groups including the

Koori Koori (also spelt koorie, goori or goorie) is a demonym for Aboriginal Australians from a region that approximately corresponds to southern New South Wales and Victoria. The word derives from the Indigenous language Awabakal. For some people an ...

peoples to manufacture spears from the wood.

Distribution

It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to central parts of

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

, the

Australian Capital Territory The Australian Capital Territory (commonly abbreviated as ACT), known as the Federal Capital Territory (FCT) until 1938, is a landlocked federal territory of Australia containing the national capital Canberra and some surrounding townships. ...

and

Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...

. It is fairly common on the western slopes of the

Great Dividing Range The Great Dividing Range, also known as the East Australian Cordillera or the Eastern Highlands, is a cordillera system in eastern Australia consisting of an expansive collection of mountain ranges, plateaus and rolling hills, that runs rough ...

and plains of New South Wales and its range extends through the southern tablelands through the Australian Capital Territory and across Ovens Range in Victoria. In New South Wales it is found as far east as

Wollemi The Wollemi National Park () is a protected national park and wilderness area that is located in the northern Blue Mountains and Lower Hunter regions of New South Wales, in eastern Australia. The park, the second largest national park in New S ...

spreading as far west as the Ivanhoe District and as far north as

Brewarrina Brewarrina (pronounced 'bree-warren-ah'; locally known as "Bre") is a town in north-west New South Wales, Australia on the banks of the Barwon River in Brewarrina Shire. The name Brewarrina is derived from 'burru waranha', a Weilwan name for a s ...

. It is found on rocky ridges where it is associated with ''

Eucalyptus ''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including '' Corymbia'', they are commonly known as euca ...

'' and ''

Callitris ''Callitris'' is a genus of coniferous trees in the Cupressaceae (cypress family). There are 16 recognized species in the genus, of which 13 are native to Australia and the other three (''C. neocaledonica, C. sulcata'' and ''C. p ...

'' woodland communities and on red sandy plains where it is often part of mallee communities. In Victoria it is considered rare and has a small disjunct distribution in the

East Gippsland East Gippsland is the eastern region of Gippsland, Victoria, Australia covering 31,740 square kilometres (14%) of Victoria. It has a population of 80,114. Australian Bureau of Statistics2006 Census Community Profile Series: East Gippsland (Sta ...

Uplands and the northern inland slopes in the Barambogie Range close to

Beechworth Beechworth is a well-preserved historical town located in the north-east of Victoria, Australia, famous for its major growth during the gold rush days of the mid-1850s. At the , Beechworth had a population of 3,859. Beechworth's many histor ...

and around Suggan Buggan where it grows on rocky well-drained hillsides and ridges.

Cultivation

The plant is widely available for cultivation in seeds form although seeds need to be scarified or treated with boiling water prior to sowing. It prefers a well-drained and reasonably dry position and is

frost Frost is a thin layer of ice on a solid surface, which forms from water vapor in an above-freezing atmosphere coming in contact with a solid surface whose temperature is below freezing, and resulting in a phase change from water vapor (a gas) ...

tolerant. It is often planted as a good screen plant in its rounded shrub form and makes a suitable hedge or windbreak.

Uses

''A. doratoxylon'' can be used for

land rehabilitation Land rehabilitation as a part of environmental remediation is the process of returning the land in a given area to some degree of its former state, after some process (industry, natural disasters, etc.) has resulted in its damage. Many projects ...

and can grow quickly in rocky soils that are prone to

erosion Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distin ...

and on recharge areas. It is also

nitrogen fixing Nitrogen fixation is a chemical process by which molecular nitrogen (), with a strong triple covalent bond, in the Atmosphere of Earth, air is converted into ammonia () or related nitrogenous compounds, typically in soil or aquatic systems but al ...

which will increase soil fertility and makes a suitable

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

for native species. It produces

pollen Pollen is a powdery substance produced by seed plants. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophyt ...

prolifically which is a good food source for native moths, butterflies and insects, attracting insectivorous birds. Other birds including native pigeons and parrots consume the seeds. The timber is a good fuel and produces a hot fire. The dark brown wood is dense and very hard and heavy and used to manufacture for furniture. Indigenous Australians used it to make spears. The foliage is used as fodder for stock during times of

drought A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, an ...

References