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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 bidentata

Acacia bidentata Benth., 1842

Acacia bidentata var. pubescens Meisn.
Racosperma bidentatum (Benth.) Pedley

Native distribution areas:
Acacia bidentata

Continental: Australasia
Regional: Australia
Western Australia

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

Bentham, G., 1842. London Journal of Botany. London 1:333.


Govaerts, R. et al. 2020. Acacia bidentata in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Jul 26. Reference page.
International Plant Names Index. 2019. Acacia bidentata. Published online. Accessed: Jul 26 2019. 2019. Acacia bidentata. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 26.
Hassler, M. Jul. Acacia bidentata. 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. Jul. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: Jul 26 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia bidentata in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names

Acacia bidentata is a shrub belonging to the genus Acacia and the subgenus Phyllodineae and is native to Western Australia.


The prostrate and domed shrub typically grows to a height of 0.1 to 1 metre (0 to 3 ft).[1] The branchlets are a scurfy white colour with inconspicuous stipules. The phyllodes are an obovate to obtriangular-obdeltate shape and mostly 4 to 7 millimetres (0.16 to 0.28 in) long and 2.5 to 5 mm (0.10 to 0.20 in) wide. The green phyllodes are glabrous or hairy on their margins.[2] It blooms from July to October and produces white to cream or yellow flowers.[1] Each inflorescence contains one to three globular to obloid shaped heads that contain 10 to 16 loosely packed creamy white or pale yellow flowers. After flowering strong curved seed pods that are around 15 mm (0.59 in) in length and 3 to 4 mm (0.12 to 0.16 in) wide. The seeds have an oblong-ovate shape and are 3 to 3.5 mm (0.12 to 0.14 in) long.[2]

The species was first formally described by the botanist George Bentham in 1842 as part of William Jackson Hooker's work Notes on Mimoseae, with a synopsis of species as published in the London Journal of Botany. It was reclassified as Racosperma bidentatum in 2003 by Leslie Pedley then transferred back to the genus Acacia in 2006.[3]

It is native to an area in the Mid West, Wheatbelt and the Great Southern regions of Western Australia.[1] It has a scattered distribution from Kalbarri in the north and then south around Carnamah. It occurs predominantly south from Carnamah to Stirling Range National Park in the south and east to around Grass Patch where it grows in clay, sand, sandy loam, gravelly loam and loamy soils and is usually part of mallee woodland and heath communities.[2]
See also

List of Acacia species


"Acacia bidentata". FloraBase. Western Australian Government Department of Parks and Wildlife.
"Acacia bidentata". World Wide Wattle. Western Australian Herbarium. Retrieved 3 September 2018.
"Acacia bidentata Benth". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 3 September 2018.

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