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 [tax. nov.]

• Type: "Central Greenough, West Australia, Max Koch, Sept. 1910, No. 2086."

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

orthographic variant: Calothamnus homalophyllus var. angustifolia Ewart orth. var.

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

George, A.S. & Gibson, N. (29 September 2010), A revision of Calothamnus quadrifidus (Myrtaceae). Nuytsia 20: 66 [basionym]

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

Craven, L.A., Edwards, R.D. & Cowley, K.J. (2014), New combinations and names in Melaleuca (Myrtaceae). Taxon 63(3): 667 [basionym]

basionym of: Melaleuca quadrifida subsp. angustifolia (Ewart) Craven & R.D.Edwards 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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