Endlicher, S.F.L. in Endlicher, S.F.L., Fenzl, E., Bentham, G. & Schott, H.W. (April 1837), Myrtaceae. Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in Sinu Regis Georgii collegit Carolus liber baro de Hügel: 50, adnot. [tax. nov.]

nomenclatural synonym: Leptospermum sect. Agonis DC. legitimate nomenclatural synonym: Billottia R.Br. ex G.Don nom. illeg., nom. superfl.

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

orthographic variant: Leptospermum sect. Billiotia Endl. orth. var.

Council of Heads of Australasian Herbaria (2016), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Agonis (DC.) Sweet legitimate

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