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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 hemignosta

Acacia hemignosta F.Muell., 1859

Racosperma helicophyllum (Pedley) Pedley

Native distribution areas:
Acacia hemignosta

Continental: Australasia
Regional: Australia
Northern Territory

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

Mueller, F.J.H. v., 1959. Journal of the Proceedings of the Linnean Society. Botany. London 3:134.


Govaerts, R. et al. 2020. Acacia hemignosta in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 04. Reference page.
International Plant Names Index. 2019. Acacia hemignosta. Published online. Accessed: Aug 04 2019. 2019. Acacia hemignosta. Missouri Botanical Garden. Published online. Accessed: 04 Aug 2019.
Hassler, M. Aug. Acacia hemignosta. 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 04 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia hemignosta in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Club-leaf Wattle

Acacia hemignosta commonly known as the clubleaf wattle, is a tree or shrub of the genus Acacia and the subgenus Plurinerves that is endemic to northern parts of Australia.


The tree or shrub typically grows to a height of 1 to 7 metres (3 to 23 ft)[1] but can sometimes reach up to 10 m (33 ft). It has rough, corky and fissured bark with pendulous brittle branchlets. The green to yellowish green to grey green phyllodes have an oblanceolate to narrowly oblanceolate shape and are straight to shallowly recurved. Each phyllode has a length of 6 to 15 cm (2.4 to 5.9 in) and a width of 10 to 30 mm (0.39 to 1.18 in) and has three distant main nerves.[2] It blooms from June to October and produces yellow flowers.[1] Each racemose inflorescence has an axis with a length of 3 to 17 cm (1.2 to 6.7 in) with spherical flowerheads contain 30 to 50 bright golden flowers. After flowering flat, straight, narrowly oblong seed pods form with a length of around 8 cm (3.1 in) and a width of 8 to 12 mm (0.31 to 0.47 in). The dull brown seeds inside have an oblong-elliptic shape and are 5.5 to 6.5 mm (0.22 to 0.26 in) in length.[2]

The species was first formally described by the botanist Ferdinand von Mueller in 1859 as part of the work Contributiones ad Acaciarum Australiae Cognitionem as published in Journal of the Proceedings of the Linnean Society, Botany. It was reclassified as Racosperma hemignostum in 1987 by Leslie Pedley but transferred back into the genus Acacia in 2001. The only other synonym is Acacia cloncurrensis.[3]

It is native across the Northern Territory and the Kimberley region of Western Australia[1] as well as northern Queensland.[3] The plant is found in flat or undulating country growing in sandy and lateritic soils in and heavier soils around watercourses and is usually a part of open woodland communities.[2]
See also

List of Acacia species


"Acacia hemignosta". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia hemignosta". World Wide Wattle. Western Australian Herbarium. Retrieved 17 January 2019.
"Acacia hemignosta F.Muell". Alas of Living Australia. Global Biodiversity Information Facility. Retrieved 17 January 2019.

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