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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 megacephala

Acacia megacephala Maslin, 1972

Racosperma megacephalum (Maslin) Pedley

Native distribution areas:
Acacia megacephala

Continental: Australasia
Regional: Australia
Western Australia

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

Maslin, B.R., 1972, Nuytsia; Bulletin of the Western Australian Herbarium 1 (3): 254 (1972).


Govaerts, R. et al. 2020. Acacia megacephala in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 07. Reference page.
International Plant Names Index. 2019. Acacia megacephala. Published online. Accessed: Aug 07 2019. 2019. Acacia megacephala. Missouri Botanical Garden. Published online. Accessed: 07 Aug 2019.
Hassler, M. Aug. Acacia megacephala. 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 07 {{{3}}}. Reference page.

Vernacular names

Acacia megacephala is a shrub of the genus Acacia and the subgenus Pulchellae that is endemic to south western Australia.


The erect, spindly and spinose shrub typically grows to a height of 0.9 to 2 metres (3 to 7 ft)[1] and has hairy branchlets that usually arch downwards and with axillary spines and linear-triangular shaped stipules with a length of 1.5 to 4 mm (0.059 to 0.157 in) The leaves are composed of one pair of pinnae with a length of 4 to 6 mm (0.16 to 0.24 in) which hold four to six pairs of green-grey and glabrous and smooth pinnules that have a oblanceolate shape with a length of 3 to 6 mm (0.12 to 0.24 in) and a width of 1.5 to 3 mm (0.059 to 0.118 in).[2] It blooms from July to September and produces yellow flowers.[1]

The species was first formally described in 1972 by the botanist Bruce Maslin as a part of the work Studies in the genus Acacia as published in the journal Nuytsia. It was reclassified by Leslie Pedley in 2003 as Racosperma megacephalum then returned to genus Acacia in 2006.[3]

It is native to an area in the Mid West regions of Western Australia where it is commonly situated on sandplains growing in sandy or loamy soils.[1] It has a limited range to around Geraldton as a part of in mixed scrub and shrubland communities.[2]
See also

List of Acacia species


"Acacia megacephala". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia megacephala". World Wide Wattle. Western Australian Herbarium. Retrieved 11 February 2021.
"Acacia megacephala Maslin". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 11 February 2021.

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