Schauer, J.C. (1843), Dissertatio phytographica de Regelia, Beaufortia et Calothamno: 30 [primary reference]

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

taxonomic synonym of: Calothamnus quadrifidus R.Br. subsp. quadrifidus legitimate

George, A.S. & Gibson, N. (29 September 2010), A revision of Calothamnus quadrifidus (Myrtaceae). Nuytsia 20: 62 [taxonomic synonym]

taxonomic synonym of: Calothamnus quadrifidus R.Br. subsp. quadrifidus legitimate

George, A.S. & Gibson, N. (29 September 2010), A revision of Calothamnus quadrifidus (Myrtaceae). Nuytsia 20: 62 [orthographic variant]

orthographic variant of: Calothamnus laevigatus Schauer legitimate

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

taxonomic synonym of: Calothamnus quadrifidus R.Br. legitimate

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