Bentham, G. in Lindley, J. (ed.) (1 June 1835), Edwards's Botanical Register 21: subt. 1770 [4]. [tax. nov.]

• Type: (not designated).

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 97 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 361 [secondary reference]

Barker, W.R. in Wheeler, J.R. (ed.) (1992), Scrophulariaceae. Flora of the Kimberley Region: 817 [secondary reference]

Dunlop, C.R., Leach, G.J., Latz, P.K., Barritt, M.J., Cowie, I.D. & Albrecht, D.E. (1995), Checklist of the Vascular Plants of the Northern Territory: 102 [secondary reference]

Fischer, E. in Kubitzki, K. (ed.) (2004), Scrophulariaceae. The Families and Genera of Vascular Plants 7: 386 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 286 [secondary reference]

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - APC [secondary reference]

• APC Dist.: NT, Qld

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