Briquet, J.I. (1904), Arkiv for Botanik Utgivet av k. Svenska Vetenskapsakademien 2: 10 [autonym]

Munir, A.A. (28 May 2002), A taxonomic revision of the genus Verbena L. (Verbenaceae) in Australia. Journal of the Adelaide Botanic Gardens 20: 33-36, Fig. 1, Map 2 [secondary reference]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Verbena bonariensis L. legitimate

O'Leary, N., Mulgura, M.E. & Morrone, O. (2007), Revision taxonomica de las especies del genero Verbena (Verbenaceae): serie Pachystachyae. Annals of the Missouri Botanical Garden 94(3): 582-583, Fig. 3C [secondary reference]

taxonomic synonym: Verbena incompta P.W.Michael legitimate

Western Australian Herbarium (2007), FloraBase: the Western Australian Flora Version 2.5: - [secondary reference]

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