Hunter, J.T. (1997), Acacia williamsiana (Fabaceae: Juliflorae): a new granitic outcrop species from northern New South Wales. Journal of the Royal Society of Western Australia 80 (3): 235-237, Fig. 1 A-H [tax. nov.]

• Type: New South Wales: North Western Slopes: on the banks of Kings Plains Ck, in Kings Plains National Park, NW of Glen Innes, N.S.W., J.T.Hunter 4112 & P.J.Clarke; holo: NSW; iso: AD, BRI, HO, MEL, NE, PERTH

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

Kodela, P.G. & Harden, G.J. in Harden, G.J. (ed.) (2002), Acacia. Flora of New South Wales Revised Edition 2: 421 [secondary reference]

Pedley, L. (3 December 2003), A synopsis of Racosperma C.Mart. (Leguminosae: Mimosoideae). Austrobaileya 6(3): 493 [basionym]

basionym of: Racosperma williamsianum (J.T.Hunter) Pedley legitimate

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

nomenclatural synonym: Racosperma williamsianum (J.T.Hunter) Pedley legitimate

• APC Dist.: Qld, NSW

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