Fischer, F.E.L. von & Meyer, C.A.A. von in Fischer, F.E.L. von & Meyer, C.A.A. von (ed.) (1836), Index Seminum, quae hortus botanicus Imperialis Petropolitanus pro mutua commutatione offert 2: 52 [tax. nov.]

Fischer, E. in Kubitzki, K. (ed.) (2004), Scrophulariaceae. The Families and Genera of Vascular Plants 7: 420 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 874 [secondary reference]

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

• APC Dist.: Vic (naturalised)

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