Forster, J.R. & Forster J.G.A. (29 November 1775), Characteres Generum Plantarum Edn. 1: 146, t. 73 [tax. nov.]

Williams, D.G. (1994), Vegetation and flora of the Cocos (Keeling) Islands. Atoll Research Bulletin 404: 22 [secondary reference]

de Lange, P.J., Gardner, R.O., Sykes, W.R., Crowcroft, G.M., Cameron, E.K., Stalker, F., Christian, M.L. & Braggins, J.E. (2005), Vascular flora of Norfolk Island: some additions and taxonomic notes. New Zealand Journal of Botany 43: 579-580 APC [secondary reference]

• APC Dist.: NI (doubtfully naturalised)

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