Nees von Esenbeck, C.G.D. in Candolle, A.L.P.P. de (ed.) (25 November 1847), Acanthaceae. Prodromus Systematis Naturalis Regni Vegetabilis 11: 230 [tax. nov.]

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

• APC Dist.: Qld (doubtfully naturalised), NSW (naturalised)

Bean, A.R. in Bostock, P.D. & Holland, A.E. (ed.) (8 December 2010), Acanthaceae. Census of the Queensland Flora 2010: 5 [secondary reference]

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