Heynhold, G. (1840), Nomenclator botanicus hortensis 1: 123 [primary reference]

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

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

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

orthographic variant of: Billottia acerosa Colla 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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