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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 confluens

Acacia confluens Maiden & Blakely, 1926

Racosperma confluens (Maiden & Blakely) Pedley

Native distribution areas:
Acacia confluens

Continental: Australasia
Regional: Australia
South Australia

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

Maiden, J.H. & Blakely, W.F., 1927. Journal and Proceedings of the Royal Society of New South Wales 1926, lx. 183.


Govaerts, R. et al. 2020. Acacia confluens 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 confluens. Published online. Accessed: Jul 29 2019. 2019. Acacia confluens. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 29.
Hassler, M. Jul. Acacia confluens. 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.

Vernacular names
English: Wyrilda

Acacia confluens, commonly known as wyrilda,[1] is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to central Australia.


The shrub typically grows to a height of 2 to 3 m (6 ft 7 in to 9 ft 10 in) and has a spreading crown resembling an umbrella.[1] It often divides into several obliquely ascending stems around the base and forming a quite dense canopy The angular, smooth branchlets are a reddish to brown colour with greyish bark that is fissured near the base of the stems. The obliquely-lanceolate shaped green phyllodes have a length of 7 to 14 cm (2.8 to 5.5 in) and a width of 5 to 25 mm (0.20 to 0.98 in).[2] It flowers irregularly between June and September producing yellow flowers.[3] The axillary inflorescences can appear singly or in groups of ten. The large flower-heads contain between 40 and 60 pale yellow flowers. The thick, linear, dark brown seed pods that form after flowering have a length of 10 to 25 cm (3.9 to 9.8 in) and a width of 10 to 15 mm (0.39 to 0.59 in) and can be straight or curved.[2]

The species was first formally described by the botanists Joseph Maiden and William Blakely in 1927 as published in the Journal and Proceedings of the Royal Society of New South Wales. It was reclassified as Racosperma confluens by Leslie Pedley in 1986 ten transferred back to the genus Acacia in 2001.[4] The specific epithet is taken from the latin word confluens meaning flowing into in reference to the way the main vein merges with the margin.[2]

It is found in South Australia at the northern end of the Flinders Ranges from Mount Lyndhurst east as far as Arkaroola[2] in the Tirari Desert and Sturt Stony Desert regions where it is situated in gullies and on stony hillsides growing in skeletal calcareous loamy soils as a part of tall shrubland communities.[3]
See also

List of Acacia species


"Acacia confluens". World Wide Wattle. Western Australian Herbarium. Retrieved 17 April 2019.
"Acacia confluens". Electronic Flora of South Australia species Fact Sheet. State Herbarium of South Australia. Retrieved 18 April 2019.
E.Williams. "Wyrilda Acacia confluens". IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources. Retrieved 18 April 2019.
"Acacia confluens Maiden & Blakely Wyrilda". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 18 April 2019.

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