Dietrich, D.N.F. (1839), Synopsis Plantarum 1: 779 [tax. nov.]

taxonomic synonym: Marquisia billardierei A.Rich. ex DC. nom. illeg.

Thompson, I.R. (4 January 2010), A new species of Leptostigma (Rubiaceae: Coprosminae) and notes on the Coprosminae in Australia. Muelleria 28(1): 36-37, Fig. 4 [nomenclatural synonym]

nomenclatural synonym of: Coprosma quadrifida (Labill.) B.L.Rob. legitimate

Council of Heads of Australasian Herbaria (2012), Australian Plant Census: - [secondary reference]

orthographic variant: Canthium billardierii D.Dietr. orth. var.

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