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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 crassa
Subspecies: A. crassa subsp. crassa - A. crassa subsp. longicoma

Acacia crassa Pedley, 1974

Racosperma crassum (Pedley) Pedley

Native distribution areas:
Acacia crassa

Continental: Australasia
Regional: Australia
New South Wales, Queensland

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

Pedley, L., 1974. Contributions from the Queensland Herbarium 15: 9.


Govaerts, R. et al. 2020. Acacia crassa 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 30. Reference page.
International Plant Names Index. 2019. Acacia crassa. Published online. Accessed: Jul 30 2019. 2019. Acacia crassa. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 30.
Hassler, M. Jul. Acacia crassa. 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 30 {{{3}}}. Reference page.

Vernacular names
English: curracabah

Acacia crassa, commonly known as the curracabah, is a species of Acacia native to eastern Australia.[1]


The shrub to tree typically grows to a height of 12 metres (39 ft) and has finely corrugated bark that fissures at the base.[1] The angled stout branchlets are light or dark grey or red-brown and often have distinct lenticels. The evergreen phyllodes have a narrowly elliptic shape that gradually tapers both ends. They are usually 12 to 24 centimetres (5 to 9 in) in length and 3 to 25 millimetres (0.12 to 0.98 in) wide and have three prominent main nerves. It flowers between July and October, the further south the later it flowers.[2] It produces a flower-spike with a length of 4 to 8 cm (1.6 to 3.1 in) densely packed with golden flowers. After flowering glabrous linear seed pods that raised over and constricted between the seeds Pods are around 4.5 to 10 cm (1.8 to 3.9 in) in length and 2.5 to 3 mm (0.098 to 0.118 in) wide. The pods contain black seeds with an elliptic shape with a length of 3 to 6 mm (0.118 to 0.236 in).[2]

Its range follows along the line of the Great Dividing Range from around Mackay in Queensland to about Newcastle in New South Wales[2] where it is found on sandstone and rocky conglomerate areas growing in gravelly, sandy, sandy loam or clayey soils. It is usually a part of sclerophyll woodland, heath or open scrub communities.[1]

The species was first formally described by the botanist Leslie Pedley in 1974 in the work Contributions from the Queensland Herbarium. It was reclassified by Pedley in 1987 as Racosperma crassum, then transferred back to the genus Acacia in 2001.[3]

There are two known subspecies:

Acacia crassa Pedley subsp. crassa
Acacia crassa subsp. longicoma Pedley[2]

The shrub is a member of the Acacia cunninghamii group and is closely related to Acacia concurrens , Acacia leiocalyx , Acacia longispicata and Acacia tingoorensis.[2]
See also

List of Acacia species


"Acacia crassa Pedley". Plantnet. Australian National Botanic Gardens. October 2013. Retrieved 14 September 2016.
"Acacia crassa". World Wide Wattle. Western Australian Herbarium. Retrieved 2 October 2018.
"Acacia crassa Pedley". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 2 October 2018.

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