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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 auripila

Acacia auripila R.S.Cowan & Maslin

Nuytsia 12(3): 415 (1999).

Acacia auripila, commonly known as the Rudall River myall,[1] is a tree of the genus Acacia and the subgenus Plurinerves that is native to a small area in central Western Australia.


The tree typically grows to a height of 3 metres (10 ft)[2] and has a dense crown with silvery green foliage. It has fissured grey coloured bark and slightly ribbed and glabrescent branchlets. Like most species of Acacia it has phyllodes rather than true leaves. The pungent, glabrescent, leathery and erect phyllodes are straight to slightly curved with a length of 8 to 12 cm (3.1 to 4.7 in) and a diameter of 1 to 1.5 mm (0.039 to 0.059 in) and are striated by many fine parallel nerves.[3] It produces yellow flowers in August.[2]

The species was first formally described by the botanists Richard Sumner Cowan and Bruce Maslin in 1999 as part of the work Acacia miscellany. Miscellaneous new taxa and lectotypifications in Western Australian Acacia, mostly section Plurinerves (Leguminosae: Mimosoideae) as published in the journal Nuytsia. It was reclassified as Racosperma auripilum in 2003 by Leslie Pedley then transferred back to genus Acacia in 2006.[1]

It is native to an area in the eastern Pilbara region of Western Australia where it found on hillsides and gullies.[2] Its distribution is limited to the Rudall River National Park as a part of spinifex communities growing in quartz gravel soils.[3]
See also

List of Acacia species


"Acacia auripila R.S.Cowan & Maslin". Atlas of Living Australia. Retrieved 14 May 2016.
"Acacia auripila". FloraBase. Western Australian Government Department of Parks and Wildlife.
"Acacia auripila R.S.Cowan & Maslin". Wattle - Acacias of Australia. Lucid Central. Retrieved 9 October 2020.

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