Lindley, J. in Van Houtte, L.B. (ed.) (1862), Flore des Serres et des Jardins de L'Europe, journal general d'horticulture 15: 53 [tax. nov.]

• Type: "... from Brazil..."

Souza, V.C. & Giulietti, A.M. (2009), Levantamento das especies de Scrophulariacaeae sensu lato nativas do Brasil. Pesquisas: Botanica 60: 90 [taxonomic synonym]

taxonomic synonym of: Achetaria azurea (Linden) V.C.Souza legitimate

Colletta, G.D., Scatigna, A.V. & Souza, V.C. (11 August 2020), Assessment of Matourea pratensis (Plantaginaceae: Gratioleae) reveals an older name for Achetaria. Taxon 69(6): 1356 [taxonomic synonym]

taxonomic synonym of: Matourea azurea (Linden) Colletta & V.C.Souza legitimate

Brown, G.K. & Bostock, P.D. (December 2020), Appendix A: New names and name and status changes 2019 to 2020. Introduction to the Census of the Queensland Flora 2020: 17 [taxonomic synonym]

taxonomic synonym of: Achetaria azurea (Linden) V.C.Souza legitimate

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - [secondary reference]

orthographic variant: Otacanthus coeruleus Lindl. orth. var.

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Achetaria azurea (Linden) V.C.Souza legitimate

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