Sprague, T.A. in Thiselton-Dyer, W.T. (ed.) (1904), Flora Capensis 4(2): 449-450 [tax. nov.]

Fischer, E., Theisen, I. & Lohmann, L.G. in Kubitzki, K. (ed.) (2004), Bignoniaceae. The Families and Genera of Vascular Plants 7: 20 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 685 [secondary reference]

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

• APC Dist.: Qld (naturalised)

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