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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 websteri

Acacia websteri Maiden & Blakely, 1927

Racosperma websteri (Maiden & Blakely) Pedley

Native distribution areas:
Acacia websteri

Continental: Australasia
Regional: Australia
Western Australia

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

Maiden, J.H. & Blakely, W.F., 1927. J. Roy. Soc. Western Australia 13: 25.


Govaerts, R. et al. 2020. Acacia websteri in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 18. Reference page.
International Plant Names Index. 2019. Acacia websteri. Published online. Accessed: Aug 18 2019. 2019. Acacia websteri. Missouri Botanical Garden. Published online. Accessed: 18 Aug 2019.
Catalogue of Life: 2021 Annual Checklist
Acacia websteri – Taxon details on World Wide Wattle.

Vernacular names

Acacia websteri is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is endemic to western Australia.


The shrub or tree typically grows to a height of 1.2 to 5 metres (4 to 16 ft) and produces yellow flowers.[3] The branchlets flattened near the tips and are sparsely haired to glabrous and occasionally white-resinous. Like most species of Acacia it has phyllodes rather than true leaves. The thinly coriaceous evergreen phyllodes are erect with a linear shape and length of 5 to 12 cm (2.0 to 4.7 in) and a width of 2 to 3.5 mm (0.079 to 0.138 in). They taper to a point with a gently curved apex and have three nerves per face. When the plant blooms it produces simple inflorescences with obloid to sub-spherical flowerheads that have a length of 5 to 6 mm (0.20 to 0.24 in) and a diameter of 4 mm (0.16 in) containing 30 to 36 golden coloured flowers. The narrowly linear seed pods that form after flowering have longitudinal ridges and are straight and biconvex with a length of up to 8 cm (3.1 in) and a width of 2 to 3 mm (0.079 to 0.118 in) containing longitudinally arranged seeds. The light brown seeds have an oblong shape with a length of around 3.5 mm (0.14 in) and a terminal aril.[4]

It is native to an area in the Wheatbelt and Goldfields regions of Western Australia.[3] It has a disjunct distribution from around Bencubbin and around the towns of Coolgardie and Kambalda where it is often situated in drainage depressions growing in red loam, sand and clay soils as a part of shrubland and scrub communities.[4]
See also

List of Acacia species


"Acacia websteri". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
Maiden, J.H. & Blakely, W.F. (1927) Descriptions of fifty new species and six varieties of western and northern Australian Acacias, and notes on four other species. Journal of the Royal Society of Western Australia 13: 25, t. xv, Figs 6-12
"Acacia websteri". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia websteri". WorldWideWattle. Western Australian Herbarium. Retrieved 22 March 2020.

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