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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 caesiella

Acacia caesiella Maiden & Blakely, 1927 ("1926")

Racosperma caesiellum (Maiden & Blakely) Pedley

Native distribution areas:
Acacia caesiella

Continental: Australasia
Regional: Australia
New South Wales

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

Maiden, J.H. & Blakely, W.F., 1927 ("1926"). Journal of the Royal Society of Western Australia 60:180.


Govaerts, R. et al. 2020. Acacia caesiella 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 27. Reference page.
International Plant Names Index. 2019. Acacia caesiella. Published online. Accessed: Jul 27 2019. 2019. Acacia caesiella. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 27.
Hassler, M. Jul. Acacia caesiella. 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 27 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia caesiella in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Blue Bush, Bluebush Wattle, Tableland Wattle

Acacia caesiella, commonly known as tableland wattle, bluebush wattle or blue bush, is a shrub or small tree that is endemic to eastern Australia.


The shrub or small tree typically grows to a height of 1 to 3.5 m (3 ft 3 in to 11 ft 6 in) and sometimes as high as 5 m (16 ft) with an erect or spreading habit. It has smooth grey or brown bark and angled branchlets. Like most Acacias it has phyllodes instead of true leaves. The phyllodes have a 4 to 10 cm (1.6 to 3.9 in) length and a width of 3 to 7 mm (0.12 to 0.28 in) with a narrowly elliptic to linear shape that is straight or curved. Globular yellow flowerheads appear between July and October in the species' native range.[1][2] The spherical heads flower-heads have a diameter of 4 to 6.5 mm (0.16 to 0.26 in) and contain 12 to 20 bright yellow or deep yellow coloured flowers. The seed pods that form after flowering are flat and straight to slightly curved with a length of 4 to 9 cm (1.6 to 3.5 in) and a with of 6 to 10 mm (0.24 to 0.39 in) that are firmly papery to leathery.[1]

The species was first formally described by the botanists Joseph Maiden and William Blakely in 1927 as part of the work Journal and Proceedings of the Royal Society of New South Wales. It was reclassified as Racosperma caesiellum by Leslie Pedley in 2003 then transferred back to genus Acacia in 2006.[3]

It is found in the state of New South Wales mostly of the slopes of the Great Dividing Range from around Burrenjuck in the south out Mount Coricudgy in the east and to Baradine in the west. It is found on rocky areas as a part of dry sclerophyll woodland communities.[1]
See also

List of Acacia species


Kodela P.G. "Acacia caesiella". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 15 September 2014.
"Acacia caesiella". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 15 September 2014.
"Acacia caesiella Maiden & Blakely". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 25 August 2019.

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