Burman, N.L. (1768), Flora Indica: cui accedit series zoophytorum indicorum, nec non Prodromus Florae Capensis: 51 [tax. nov.]

Brown, R. (3 April 1810), On the Asclepiadeae: 52-53 [secondary reference]

Barker, R.M. & Telford, I.R.H. (1993), Apocynaceae. Flora of Australia 50: 323 APC [secondary reference]

• APC Dist.: ChI (naturalised)

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 891 [secondary reference]

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