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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 concurrens

Acacia concurrens Pedley, 1974

Acacia cunninghamii Hook.
Racosperma concurrens (Pedley) Pedley

Native distribution areas:
Acacia concurrens

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. Brisbane 15:9.


Govaerts, R. et al. 2020. Acacia concurrens 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 concurrens. Published online. Accessed: Jul 29 2019. 2019. Acacia concurrens. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 29.
Hassler, M. Jul. Acacia concurrens. 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 concurrens in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Curracabah

Acacia concurrens, commonly known as curracabah or black wattle, is a shrub native to Queensland in eastern Australia.[1]

Formerly known as Acacia cunninghamii, the new name Acacia concurrens describes the converging primary veins on the phyllodes.[2] It is very similar to Acacias such as Acacia leiocalyx and Acacia disparrima.


The shrub can grow as high as 10 m (33 ft) but is typically smaller. The glossy green phyllodes have an obliquely obovate shape with the lower margin that is almost straight.[3] It has fissured and fibrous, grey-black coloured bark and stout, angular branchlets The phyllodes have a length of up to 16 cm (6.3 in).[2] It blooms between March and September producing rod shaped flowers are bright yellow that are found in pairs in the leaf axils.[3] The flower-spikes are around 3.5 to 11 cm (1.4 to 4.3 in) in length. The linear, slightly moniliform, semicircular seed pods that form after flowering are 5 to 10 cm (2.0 to 3.9 in) in length. The pods contain brownish black seeds with an elliptic shape that are 3.5 to 4.5 mm (0.14 to 0.18 in) in length.[4]

The species was first formally described by the botanist Leslie Pedley in 1974 as part of the work Contributions from the Queensland Herbarium . It was reclassified as Racosperma concurrens in 1986 by Pedley then transferred back to genusAcacia in 2001.[5]

It is endemic to an area from south eastern Queensland in the north to northern New South Wales in the south[3] where it is common in coastal areas from around the Mooloolah River in Queensland down to the Hastings River in New South Wales[4] on hillsides or plateaux growing in sandy or stony sandy loams often over shale as part of the understorey in Eucalyptus forest communities.[2]
See also

List of Acacia species


"Acacia concurrens Pedley". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
"Acacia concurrens (MIMOSACEAE) Black Wattle, Curracabah". Save our waterways now. Retrieved 27 July 2019.
"Acacia concurrens". Wattles - genus Acacia. Australian National Botanic Gardens. Retrieved 27 July 2019.
"Acacia concurrens Pedley". Wattles - Acacias of Australia. Lucid. Retrieved 27 July 2019.
"Acacia concurrens Pedley Curracabah". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 27 July 2019.

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