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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 hilliana

Acacia hilliana Maiden, 1917

Racosperma hillianum (Maiden) Pedley

Native distribution areas:
Acacia hilliana

Continental: Australasia
Regional: Australia
Northern Territory, Western Australia

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

Maiden, J.H. in Ewart & O. B. Davies, 1917. The Flora of the Northern Territory 340. 1917


Govaerts, R. et al. 2020. Acacia hilliana 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 hilliana. Published online. Accessed: Aug 04 2019. 2019. Acacia hilliana. Missouri Botanical Garden. Published online. Accessed: 04 Aug 2019.
Hassler, M. Aug. Acacia hilliana. 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 hilliana in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Hill's Tabletop Wattle

Acacia hilliana, commonly known as Hill's tabletop wattle but also known as sandhill wattle and Hilltop wattle,[1] is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to northern Australia.

The Indigenous Australian peoples the Banyjima know it as Bundaljingu and the Nyangumarta know it as Puntanungu.[1]


The low spreading, viscid shrub typically grows to a height of 0.2 to 1 metre (1 to 3 ft).[2] The obscurely ribbed branches normally spread horizontally giving the shrub a flat-topped appearance. The green to grey-green phyllodes are solitary or sometimes in clusters of two or three at the nodes. Each phyllode is 2 to 7 centimetres (0.8 to 2.8 in) in length and has a diameter of about 1 millimetre (0.04 in) and are straight or curve shallowly upward.[1] It blooms from March to October producing golden yellow flowers.[2] The simple inflorescences have an erect flower spike that is 10 to 45 mm (0.4 to 1.8 in) in length. Following flowering flat, thick and linear dark brown seed pods with a length of 2 to 8 cm (0.8 to 3.1 in) and a width of 2 to 6 mm (0.08 to 0.24 in). The erect and woody pods are sticky with resin and have an odour resembling like citronella or lemon grass. The ellipsoidal dull to slightly shiny brown seeds are 3 to 5.5 mm (0.12 to 0.22 in) long.[1]

The species was first formally described by the botanist Joseph Maiden in 1917 as part of the Alfred James Ewart and Olive Blanche Davies work Appendix IV: Acacias of the Northern Territory. The Flora of the Northern Territory. It was reclassified as Racosperma hillianum by Leslie Pedley in 1987 then transferred back the genus Acacia in 2001.[3]

The species name honours Gerald Freer Hill who collected the type specimen used by Maiden to prepare the description of the plant.[1]

In Western Australia it is scattered throughout the Kimberley and Pilbara regions of Western Australia usually on rocky ranges and plateaus, among sand dunes and on sand plains growing in red sandy and stony soils.[2] It is also found in the Northern Territory and extends into far western Queensland.[1]
See also

List of Acacia species


"Acacia hilliana". Wattles of the Pilbara. Western Australian Herbarium. Retrieved 17 September 2018.
"Acacia hilliana". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia hilliana Maiden Hill's Tabletop Wattle". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 17 September 2018.

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