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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 sibina

Acacia sibina Maslin, 1977

Racosperma sibinum (Maslin) Pedley

Native distribution areas:
Acacia sibina

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., 1977. Nuytsia; Bulletin of the Western Australian Herbarium. South Perth, W.A. 2 (3): 155 (1977).


Govaerts, R. et al. 2020. Acacia sibina in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Aug 14. Reference page.
International Plant Names Index. 2019. Acacia sibina. Published online. Accessed: Aug 14 2019. 2019. Acacia sibina. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Aug 14.
Catalogue of Life: 2021 Annual Checklist
Acacia sibina – Taxon details on World Wide Wattle.

Vernacular names

Acacia sibina is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae the is endemic to parts of western Australia.


The erect tree or shrub typically grows to a height of 1 to 4 metres (3 to 13 ft).[3] It has glabrous branchlets that are tomentulose in axils where the phyllodes are found. The erect, terete and evergreen phyllodes are straight to slightly curved. The rigid an glaucous phyllodes have a length of 6 to 22 cm (2.4 to 8.7 in) and a diameter of 1 to 2 m (3 ft 3 in to 6 ft 7 in). They have a pungent odour and are indistinctly striate.[4] It blooms from August to October producing yellow flowers.[3] The simple inflorescences are found in pairs in the axils. Each flower-spike has a cylindrical shape with a length of 7 to 22 mm (0.28 to 0.87 in) and a diameter of 7 mm (0.28 in) and are quite densely flowered packed with golden coloured flowers. After flowering firmly chartaceous linear shaped seed pods form that are raised over and constricted between each of the seeds. The glabrous pods can have a length of up to 12 cm (4.7 in) and a width of 4 to 6 mm (0.16 to 0.24 in). The glossy dark brown seeds are arranged longitudinally within the pods. The seeds have an elliptic shape with a length of 3.5 to 4 mm (0.14 to 0.16 in) and have a yellow aril.[4]

It was first described in 1977 by Bruce Maslin.[1][2]

A. sibina is native to a large area in the Mid West, Goldfields and Wheatbelt region of Western Australia where it is often situated on flats, sand plains and rocky hills growing in gravelly, yellow or red sandy soils or loamy soils over laterite.[3]
See also

List of Acacia species


"Acacia sibina". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
Maslin, B. (1977) "Studies in the genus Acacia (Mimosaceae). 6. Miscellany", Nuytsia 2: 155; 156, fig. 5 & 160, fig. 7
"Acacia sibina". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia sibina". World Wide Wattle. Western Australian Herbarium. Retrieved 1 February 2020.

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