Cunningham, A. (1838), Florae Insularum Novae Zelandiae Precursor; or a Specimen of the Botany of the Islands of New Zealand. Annals of Natural History 1: 459 [tax. nov.]

• Type: "New Zealand (Northern Island). In bogs at Manga-muka on the Hokianga River, also between the Waimate and Keri-Keri Rivers. – 1834, R. Cunningham."

Hooker, J.D. (1864), Handbook of the New Zealand Flora 1: 203 [secondary reference]

Barker, R.M. in Jessop, J.P. (ed.) (September 1993), Scrophulariaceae. A list of the vascular plants of South Australia Edn. 4: 80 [taxonomic synonym]

taxonomic synonym of: Gratiola pumilo F.Muell. legitimate

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

doubtful taxonomic synonym of: Gratiola pumilo F.Muell. legitimate

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