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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 colletioides

Acacia colletioides A.Cunn. ex Benth., 1842

Racosperma colletioides (A.Cunn. ex Benth.) Pedley


Acacia colletioides F.Muell. Acacia continua Benth.

Native distribution areas:
Acacia colletioides

Continental: Australasia
Regional: Australia
New South Wales, South Australia, Victoria, Western Australia

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

Cunningham, A., 1842. London Journal of Botany. London 1:336.


Govaerts, R. et al. 2020. Acacia colletioides 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 29. Reference page.
International Plant Names Index. 2019. Acacia colletioides. Published online. Accessed: Jul 29 2019. 2019. Acacia colletioides. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 29.
Hassler, M. Jul. Acacia colletioides. 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 29 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia colletioides in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Pin-bush, Spine Bush, Wait-a-While

Acacia colletioides, commonly known as wait-a-while, pin bush and spine bush,[1] is a shrub of the genus Acacia and the subgenus Plurinerves that is native to Australia.


The rigid spreading prickly shrub typically grows to a height of 0.5 to 3 metres (2 to 10 ft).[2] The branchlets are glabrous to sparsely haired and have scarring where phyllodes have detached. The pungent, rigid, glabrous phyllodes are sessile and are found on distinct, yellow stem-projections. Each phyllode has a straight to curved shape and are usually 1.5 to 3 centimetres (0.59 to 1.18 in) in length with a width of 1 to 1.5 millimetres (0.039 to 0.059 in).[3] It blooms in winter and spring from July to September and produces yellow flowers.[2] Two simple inflorescences are found per axil, the flower heads have a subglobular to ellipsoidal shape and contain 15 to 24 flowers. Each flower head is 3 to 5 mm (0.118 to 0.197 in) and has a diameter of 3 to 4.5 mm (0.118 to 0.177 in). Following flowering linear coiled seed pods form that are up to a length of 7 cm (2.76 in) and 3 to 5 mm (0.118 to 0.197 in) wide. The shiny black seeds have an oval to ovate shape and a length of 3 to 4.5 mm (0.118 to 0.177 in) with an orange or yellow aril.[3]

The species was first formally described by the botanist George Bentham in 1842 as part of William Jackson Hookers work Notes on Mimoseae, with a synopsis of species as published in the London Journal of Botany. It was reclassified as Racosperma colletioides by Leslie Pedley in 2003 then transferred back to genus Acacia in 2006.[4] A. colletioides is closely related to Acacia nyssophylla.[5] It is similar in appearance to Acacia asepala, Acacia subsessilis and Acacia enterocarpa.[3]

It is found in dry areas from around Geraldton on the west coast of Western Australia, through part of South Australia and north western Victoria to around Dubbo in New South Wales, where it is mostly a part of mallee scrub or open woodland communities.[3] In Western Australia it is native to an area in the Wheatbelt, Mid West and Goldfields-Esperance regions where it grows in a variety of soil types.[2] In Victoria it is found in the Murray mallee, the Lowan mallee, the Murray scroll belt and the Robinvale Plains bioregions where it is found in the north-west mostly as a part of mallee scrub or open woodland communities growing in sandy loam soils.[5]
See also

List of Acacia species


Australian Plant Names Index, retrieved 17 May 2016
"Acacia colletioides". FloraBase. Western Australian Government Department of Parks and Wildlife.
"Acacia colletioides". World Wide Wattle. Western Australian Herbarium. Retrieved 8 September 2018.
"Acacia colletioides Benth. Pin Bush". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 24 April 2020.
"Acacia colletioides Benth.Wait-a-while". VicFlora. Royal Botanic Gardens Victoria. Retrieved 24 April 2020.

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