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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Caesalpinioideae
Tribus: Acacieae
Genus: Acacia
Species: Acacia elachantha

Acacia elachantha Maslin & M.W.McDonald, 1997

Racosperma elachanthum (M.W.McDonald & Maslin) Pedley

Native distribution areas:
Acacia elachantha

Continental: Australasia
Regional: Australia
Northern Territory, Queensland, South Australia, Western Australia

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
Primary references

McDonald, M.W. & Maslin, B.R., 1997. Australian Systematic Botany 10(3): 311.

Acacia elachantha is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to arid parts of central and northern Australia.


The shrub is open and spindly and typically grows to a height of 1 to 5 metres (3 to 16 ft). It blooms from July to October producing yellow flowers.[1] The main branches coming from the base are ascending to erect, crowns have sparse foliage are normally open and spreading. The bark on most branches is smooth thin and grey but it does darken and become longitudinally fissured at base of the main mature stems. The silvery to silvery blue-green phyllodes are falcately recurved over their entire length. Each phyllode is 8 to 19.5 centimetres (3 to 8 in) in length and 7 to 22 millimetres (0.3 to 0.9 in) wide. There are one or two simple inflorescences on each axil forming light golden flower spikes that are 15 to 33 mm (0.6 to 1.3 in) with flowers densely arranged within. Following flowering red-brown to dark brown linear seed pods form. Each pod is 4 to 11 mm (0.16 to 0.43 in) long and 3 to 4 mm (0.12 to 0.16 in) and are straight to shallowly curved. The seeds within are obloid and dark brown to black with a yellow anil.[2]

A. elachantha is a fast growing but short-lived species usually dies after five years. It that regenerates rapidly from the large quantities of seed that it produces from an early age.[2]

The species was first formally described by the botanists Bruce Maslin and Maurice McDonald in 1997 in the work A reappraisal of Acacia cowleana and allied taxa, including the description of a new species, A. elachantha, from the tropical dry-zone of Australia as published in the journal Australian Systematic Botany.[3] The type specimen was collected in 1995 by McDonald and P.A.Butcher west of the Cuddapan turn off along Birdsville–Windorah road.[4]

The only synonym is Racosperma elachanthum as described by Leslie Pedley but the name is often misapplied to Acacia cowleana.[3]

The species name is taken from the Greek words elachys meaning small or little and anthos meaning flower referring to the smaller flower spikes compared to its closest relative A. cowleana.[2]

In Western Australia it is found in the Kimberley and Pilbara regions where it has a scattered distribution.[1] It is also found throughout the Northern Territory[2] extending as far east as central and south west Queensland[5][2] and into the far north east South Australia.[6][2] The shrub grows mainly on sandplains in deep red sand or sandy loam soils but also occurs along watercourses or drainage lines, and on low rocky hills or lateritic plains in often skeletal soils. It is often found in disturbed areas such as road verges.[2] It is often part of tall open shrubland communities or in low open woodlands along with species of Eucalyptus.[7]

A. elachantha can be used for soil rehabilitation as it is drought tolerant, fast growing and grows well in poor soils.[7] The seed of the plant is edible and high nutritious. The bark contains tannins and are astringent and could be used to treat diarrhoea and dysentery. The gum can also be taken to treat diarrhoea and haemorrhoids. The wood can be used for light construction, as fuel or to make charcoal.[7] It also useful as a nitrogen fixing plant.[7]
Aboriginal names and uses

The Walmajarri people of the Paruku IPA in the Kimberley call this wattle Parta.[8]
See also

List of Acacia species


"Acacia elachantha". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia elachantha". Wattles of the Pilbara. Government of Western Australia. Retrieved 21 August 2018.
"Acacia elachantha Maslin & M.W.McDonald". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 21 August 2018.
"Acacia elachantha". World Wide Wattle. Western Australian Herbarium. Retrieved 21 August 2018.
"Acacia elachantha". WetlandInfo. Queensland Government. Retrieved 21 August 2018.
"Acacia elachantha (Leguminosae)". Seeds of South Australia. Government of South Australia. Retrieved 21 August 2018.
Ken Fern (2014). "Acacia elachantha M.W.McDonald & Maslin Fabaceae". Useful tropical plants. Retrieved 21 August 2018.
Bessie Doonday; Charmia Samuels; Evelyn (Martha) Clancy; et al. (2013). "Walmajarri plants and animals". Northern Territory Botanical Bulletin. 42: 1–242. Wikidata Q106088428.


Govaerts, R. et al. 2020. Acacia elachantha in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 01. Reference page.
International Plant Names Index. 2019. Acacia elachantha. Published online. Accessed: Aug 011 2019. 2019. Acacia elachantha. Missouri Botanical Garden. Published online. Accessed: 01 Aug 2019.
Hassler, M. Aug. Acacia elachantha. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. Aug. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: Aug 01 {{{3}}}. Reference page.

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