Bentham, G. (5 October 1864), Flora Australiensis 2: 292 [primary reference]

Ross, J.H. in McCarthy, P.M. (ed.) (1998), Erythrophleum. Flora of Australia 12: 159 [nomenclatural synonym]

nomenclatural synonym of: Petalostylis cassioides (F.Muell.) Symon legitimate

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

orthographic variant of: Petalostylis labicheoides var. cassioides (F.Muell.) Benth. legitimate

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