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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 calcicola

Acacia calcicola Forde & Ising, 1958

Racosperma calcicola (Forde & Ising) Pedley

Native distribution areas:
Acacia calcicola

Continental: Australasia
Regional: Australia
New South Wales, Northern Territory, Queensland, South Australia, Western Australia

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

Forde, N. & Ising, E.H., 1958. Transactions of the Royal Society of South Australia. Adelaide, S.A. 81:153.


Govaerts, R. et al. 2020. Acacia calcicola 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 calcicola. Published online. Accessed: Jul 27 2019. 2019. Acacia calcicola. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 27.
Hassler, M. Jul. Acacia calcicola. 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 calcicola in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Grey Myall, Myall-gidgee, Northern Myall, Shrubby Mulga, Shrubby Wattle

Acacia calcicola is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is native to parts of central Australia. Common names for this species include; shrubby wattle, shrubby mulga, myall-gidgee, northern myall and grey myall.[1] Indigenous Australians the Pitjantjatjara peoples know the tree as ikatuka, the Warlpiri know it as jirlarti and the Arrernte know it as irrakwetye.[2]


The rounded or straggly shrub or tree typically grows to a height of 1.5 to 6 metres (5 to 20 ft).[3] The species can have multiple stems at the base with a spreading and bushy canopy above. The phyllodes are variable with a narrowly linear to linear-oblanceolate shape that can sometimes be narrowly elliptic and straight to shallowly curved. Each phyllode is 5 to 14 centimetres (2.0 to 5.5 in) in length and 1 to 10 millimetres (0.04 to 0.39 in) wide.[4] It blooms in the Spring from September to November and produces yellow flowers.[3] Each inflorescence has globular heads that are 3 to 4 mm (0.12 to 0.16 in) in diameter and composed of 30 to 60 golden flowers. Seed pods form later that are approximately 12 centimetres (4.7 in) in length and 5 to 8 mm (0.20 to 0.31 in) wide. The pods are woody and wrinkled over the seeds. The seeds are dull brown in colour, longitudinal and elliptic in shape and around 6 to 8 mm (0.24 to 0.31 in) long.[4] It is closely related to Acacia cana which has silvery young phyllodes as well as Acacia coriacea which has longer phyllodes.[1]

The species name refers to the calcareous soils with which the species is commonly associated.[1] It was originally misapplied the Acacia coriacea by Augustin Pyramus de Candolle in 1825 in the work Leguminosae. Prodromus Systematis Naturalis Regni Vegetabilis. The species was first described in 1958 in the work Acacia Calcicola, A New Species of Importance to the Ecology of the Australian Arid Zone. s published in the Transactions of the Royal Society of South Australia by the botanists Neville Forde and Ernest Horace Ising.

Leslie Pedley described the species as Racosperma calcicola in 1987 in the work Racosperma Martius (Leguminosae: Mimosoideae) in Queensland: a checklist published in Austrobaileya. It was reclassified into the current genus in 2006.[5]

Widespread in arid central Australia and is mostly found in an area of desert in the southern Northern Territory and the Goldfields region of Western Australia.[3] with scattered populations also found in south-west Queensland and north-west New South Wales. It grows along ephemeral watercourses and on degraded sand dunes as part of low open woodland and tall open shrubland communities. It grows well in heavy calcareous soils usually over limestone and is often associated with Acacia aneura.[4]
See also

List of Acacia species


"Acacia calcicola Forde & Ising". PlantNET. Royal Botanic Garden, Sydney. Retrieved 8 March 2018.
"Acacia calcicola Forde & Ising". NT Flora. Northern Territory Government. Retrieved 8 March 2018.
"Acacia calcicola". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia calcicola". WorldWideWattle. Department of Parks and Wildlife. Retrieved 8 March 2018.
"Acacia calcicola Forde & Ising". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 8 March 2018.

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