Heads, M.J. (1987), New names in New Zealand Scrophulariaceae. Botanical Society of Otago Newsletter 5: 4 [tax. nov.]

Garnock-Jones, P.J., Albach, D. & Briggs, B.G. (2007), Botanical names in Southern Hemisphere Veronica (Plantaginaceae): sect. Detzneria, sect. Hebe, and sect. Labiatoides. Taxon 56(2): 574 [taxonomic synonym]

taxonomic synonym of: Veronica L. legitimate

Council of Heads of Australasian Herbaria (2008), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Veronica L. legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Veronica L. legitimate

Garnock-Jones, P.J. (2014), Evidence-based review of the taxonomic status of New Zealand's endemic seed plant genera. New Zealand Journal of Botany 52(2): 195-196 [secondary reference]

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