Cowan, R.S. & Maslin, B.R. (30 May 1990), Acacia Miscellany 2. Species related to A. deltoidea (Leguminosae: Mimosoideae: Section Plurinerves) from Western Australia. Nuytsia 7(2): 206, Fig. 1N [tax. nov.]

• Type: "Lawley R. gorge, Western Australia, 29 July 1921, C.A. Gardner 996 (holo: PERTH; iso: NSW, PERTH - C.A. Gardner "1496")."

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Mimosaceae. Flora of the Kimberley Region: 299 [secondary reference]

Cowan, R.S. in Orchard, A.E. & Wilson, A.J.G. (ed.) (2001), Flora of Australia 11B: 125, Fig. 26N-O, Map 180 [secondary reference]

• Type: Lawley R. gorge, W.A., 29 July 1921, C.A.Gardner 996 (Forest Dept. no. 1496); holo: PERTH; iso: NSW, PERTH.

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): 460 [basionym]

basionym of: Racosperma deltoideum subsp. amplum (R.S.Cowan & Maslin) Pedley legitimate

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

orthographic variant: Acacia deltoideum subsp. ampla Pedley orth. var. nomenclatural synonym: Racosperma deltoideum subsp. amplum (R.S.Cowan & Maslin) Pedley legitimate

• APC Dist.: WA

Council of Heads of Australasian Herbaria (2014), Australian Plant Census: - APC [secondary reference]

orthographic variant: Acacia deltoideum subsp. ampla Pedley orth. var. nomenclatural synonym: Racosperma deltoideum subsp. amplum (R.S.Cowan & Maslin) Pedley legitimate taxonomic synonym: Acacia deltoidea subsp. nov. (C.A.Gardner 996) [n/a]

• APC Dist.: WA

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