Cockayne, L.C. & Allan, H.H.B. (1926), The present taxonomic status of the New Zealand species of Hebe. Transactions and Proceedings of the New Zealand Institute 57: 23 [comb. nov.]

basionym: Veronica parviflora Vahl legitimate

Bayly, M.J., Garnock-Jones, P.J., Mitchell, K.A., Markham, K.R. & Brownsey, P.J. (2000), A taxonomic revision of the Hebe parviflora complex (Scrophulariaceae), based on morphology and flavonoid chemistry. New Zealand Journal of Botany 38(2): 168, fig. 5 [secondary reference]

nomenclatural synonym: Veronica parviflora Vahl legitimate taxonomic synonym: Veronica arborea Buchanan legitimate taxonomic synonym: Veronica parviflora var. arborea (Buchanan) Kirk legitimate taxonomic synonym: Hebe parviflora var. arborea (Buchanan) L.B.Moore legitimate

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

nomenclatural synonym of: Veronica parviflora Vahl legitimate

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