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Acacia complanata flowers

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 complanata

Acacia complanata A.Cunn. ex Benth., 1842

Acacia anceps Hook.
Acacia complanata var. fasciculata F.Muell.
Racosperma complanatum (A.Cunn. ex Benth.) Pedley

Native distribution areas:
Acacia complanata

Continental: Australasia
Regional: Australia
New South Wales, Queensland

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

Cunningham, A., 1842. London Journal of Botany. London 1:369.


Govaerts, R. et al. 2020. Acacia complanata 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 29. Reference page.
International Plant Names Index. 2019. Acacia complanata. Published online. Accessed: Jul 29 2019. 2019. Acacia complanata. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 29.
Hassler, M. Jul. Acacia complanata. 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 29 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia complanata in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Flat-stemmed Wattle, Long Pod Wattle

Acacia complanata, known as long-pod wattle and flat-stemmed wattle, is a perennial tree native to eastern Australia.


The tree can grow to a height of 5 to 6 m (16 to 20 ft), but more often it grows as a large shrub.[2] It has glabrous, flexuose, flattened and narrowly winged branchlets. Like most species of Acacia it has phyllodes rather than trues leaves. The evergreen phyllodes have a narrowly elliptic shape and are 5 to 10 cm (2.0 to 3.9 in) in length and 12 to 30 mm (0.47 to 1.18 in) wide. They have seven to nine prominent main nerves. The inflorescences occur in groups of four to eight and are found in the axils. The spherical flower-heads have a diameter of about 6 mm (0.24 in) and can contain 35 to 45 golden coloured flowers. The thinly coriaceous-crustaceous seed pods that form after flowering have a linear shape and are rounded over the seeds. The wrinkled and glabrous pods are up to 15 cm (5.9 in) in length and 7.5 to 10 mm (0.30 to 0.39 in) wide. The dark brown seeds within have a subglobular shape and are 4 to 5 mm (0.16 to 0.20 in) in length.[3]

It is not listed as being a threatened species. It is commonly used in environmental management.[1]

The species was first formally described by the botanist George Bentham in 1842 as a 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 complanatum in 1987 by Leslie Pedley then transferred back to the genus Acacia in 2006.[4] The specific epithet is taken from the Latin word complano meaning flattened'i in reference to the shape of the stems.[5] The only listed variety is Acacia complanata var. fasciculata'.

The shrub is widely distributed throughout south-eastern Queensland from around Jericho in the west to around Bundaberg in the west and is also found as far south west as the Dumaresq River in New South Wales and down the north coast to around Coffs Harbour, New South Wales where it situated on low ridges growing in gravelly, sandy to loamy soils often over sandstone usually as a part of heathland or dry sclerophyll forest communities.[3] It is usually a part of the understorey in forests dominated by Eucalyptus racemosa or Corymbia citriodora.[5]
See also

List of Acacia species

Wikispecies has information related to Acacia complanata.

Johns, S. R.; J. A. Lamberton; A. A. Sioumis (1966). "Alkaloids of the Australian Leguminosae". Australian Journal of Chemistry. 19 (8): 1539–1540. doi:10.1071/ch9661539.

International Legume Database & Information Service (ILDIS)
Association of Societies for Growing Australian Plants (ASGAP) Archived May 9, 2007, at the Wayback Machine
"Acacia complanata". World Wide Wattle. Western Australian Herbarium. Retrieved 27 August 2019.
"Acacia complanata A.Cunn. ex Benth". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 27 August 2019.
"Acacia complanata". Australian Native Plants Society. Retrieved 27 August 2019.

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