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

Munir, A.A. (28 May 2002), A taxonomic revision of the genus Verbena L. (Verbenaceae) in Australia. Journal of the Adelaide Botanic Gardens 20: 36-39, Map 3 [secondary reference]

• Lectotype: C.A.Lindman A. 473, Porto Alegre, Rio Grande do Sul, Brazil, 12.x.1892 (S, lectotype designated here; S, 2 iso-lectotypes).

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

taxonomic 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): 383-384. Fig. 3D [secondary reference]

---