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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 arrecta

Acacia arrecta Maslin, 1982

Racosperma arrectum (Maslin) Pedley

Native distribution areas:
Acacia arrecta

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., 1976. Nuytsia; Bulletin of the Western Australian Herbarium 4(1): 73.


Govaerts, R. et al. 2020. Acacia arrecta 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 25. Reference page.
International Plant Names Index. 2019. Acacia arrecta. Published online. Accessed: Jul 25 2019. 2019. Acacia arrecta. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 25.
Hassler, M. Jul. Acacia arrecta. 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 25 {{{3}}}. Reference page.

Vernacular names

Acacia arrecta, commonly known as Yarnda Nyirra wattle or Fortescue wattle,[1] is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to arid areas in north western Australia.


The low dense spreading shrub typically grows to a height of 0.4 to 1 metre (1 to 3 ft)[2] and to a width of about 2 m (6 ft 7 in). It usually has multiple stems and can have few branches a ground level and has smooth, grey bark that can be fissured at the very base of the main stems. The branchlets have resinous ribbing. Like most species of Acacia it has phyllodes rather than true leaves. The grey-green, resinous and terete phyllodes narrow to a hard non-spiny point. The phyllodes are 15 to 40 mm (0.59 to 1.57 in) in length and have a diameter of around 1 mm (0.039 in) and have eight obscure nerves.[1] It blooms from January to December and produces yellow flowers.[2]

The species was first formally described by the botanist Bruce Maslin in 1982 as part of the work Studies in the genus Acacia (Leguminosae: Mimosoideae) - 11. Acacia species of the Hamersley Range area, Western Australia as published in the journal Nuytsia. It was reclassified in 2003 by Leslie Pedley as Racosperma arrectum then transferred back to genus Acacia in 2006.[3]

It is native to an area in the Pilbara region of Western Australia where it is commonly situated on stony flats and low rocky hills growing in shallow rocky soils.[2] The range of the plant is from around Millstream Chichester National Park in the west to around Nullagine in the east and as far south as the Hamersley Range near Wittenoom. It is quite common in areas where it is found but has an overall scattered distribution. It is usually a part of shrubland communities that is dominated spinifex.[1]
See also

List of Acacia species


"Acacia arrecta". Wattles of the Pilbara. Department of Environment and Conservation. 2010. Retrieved 6 October 2020.
"Acacia arrecta". FloraBase. Western Australian Government Department of Parks and Wildlife.
"Acacia arrecta Maslin". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 6 October 2020.

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