Maslin, B.R. (7 February 1978), Studies in the genus Acacia (Mimosaceae) - 8 A revision of the Uninerves - Triangulares, in part (the tetramerous species). Nuytsia 2(5): 281-282, Figs 6, 20 (map) [tax. nov.]

• Type: "19.5 km S of Lake King towards Ravensthorpe, Western Australia.... 28 Aug. 1973, B.R. Maslin 3440 (holo: PERTH; iso: CANB, K, MEL, NY)."

pro parte taxonomic synonym: Acacia horridula Meisn. legitimate pro parte misapplication: Acacia horridula Meisn. legitimate by Bentham, G. (5 October 1864), Flora Australiensis 2: 350

• Etymology: "The specific epithet refers to the inflorescences which are numerous and congested towards the extremities of the branchlets."

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 88 [secondary reference]

Maslin, B.R. in Orchard, A.E. & Wilson, A.J.G. (ed.) (2001), Flora of Australia 11A: 508-509, Fig. 65F-H, Map 378 [secondary reference]

pro parte taxonomic synonym: Acacia horridula Meisn. legitimate pro parte misapplication: Acacia horridula Meisn. legitimate by Bentham, G. (5 October 1864), Flora Australiensis 2: 350

Maslin, B.R. (9 July 2001), Wattle - Acacias of Australia: - [secondary reference]

Pedley, L. (3 December 2003), A synopsis of Racosperma C.Mart. (Leguminosae: Mimosoideae). Austrobaileya 6(3): 483 [basionym]

basionym of: Racosperma pycnocephalum (Maslin) Pedley legitimate

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Racosperma pycnocephalum (Maslin) Pedley legitimate pro parte taxonomic synonym: Acacia horridula Meisn. legitimate

• APC Dist.: WA

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