Ewart, A.J., White, J. & Wood, B. (1911), Contributions to the Flora of Australia, No. 16. Proceedings of the Royal Society of Victoria 23(2): 63 [primary reference]

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [orthographic variant]

orthographic variant of: Calothamnus homalophyllus var. angustifolius Ewart legitimate

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Calothamnus quadrifidus subsp. angustifolius (Ewart) A.S.George & N.Gibson legitimate

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Calothamnus quadrifidus subsp. angustifolius (Ewart) A.S.George & N.Gibson legitimate

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