Maslin, B.R. (27 March 1975), Studies in the genus Acacia (Mimosaceae) - 4 A Revision of Series Pulchellae. Nuytsia 1(5): 416-417, Fig. 6 I-J, Map 4 [tax. nov.]

• Type: "15 km S of Badgingarra towards Dandaragan, Western Australia, 3 Aug. 1973, B.R. Maslin 3247 (holo: PERTH; iso: CANB, K, MEL, NSW, NY, PERTH)."

• Etymology: "The varietal epithet refers to the fact that the inflorescence is positioned on the axillary spine."

Maslin, B.R. (21 December 1979), Studies in the genus Acacia (Mimosaceae) - 9 Additional notes on the Series Pulchellae Benth. Nuytsia 2(6): 359 [basionym]

basionym of: Acacia epacantha (Maslin) Maslin legitimate

Maslin, B.R. in Orchard, A.E. & Wilson, A.J.G. (ed.) (2001), Flora of Australia 11B: 420 [nomenclatural synonym]

nomenclatural synonym of: Acacia epacantha (Maslin) Maslin legitimate

Pedley, L. (3 December 2003), A synopsis of Racosperma C.Mart. (Leguminosae: Mimosoideae). Austrobaileya 6(3): 463 [basionym]

basionym of: Racosperma epacanthum (Maslin) Pedley legitimate

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Acacia epacantha (Maslin) Maslin legitimate

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