Ewart, A.J. & Tovey, J.R. (1920), Contributions to the Flora of Australia, No. 28. Proceedings of the Royal Society of Victoria 32: 203 [tax. nov.]

• Type: "Near Lake Deborah, West Australia, Collector, R. Helms, 1891."

Lander, N.S. (22 January 1985), Revision of the Australian genus Lawrencia Hook. (Malvaceae: Malveae). Nuytsia 5(2): 255 [secondary reference]

• Lectotype: "Lake Deborah, November 1891, R. Helms s.n. (lecto: AD 96628004; isolecto; AD 97714338, MEL)."

taxonomic synonym: Ricinocarpos velutinus F.Muell. legitimate taxonomic synonym: Plagianthus monoica Ewart legitimate

Halford, D.A. & Henderson, R.J.F. (30 November 2007), A taxonomic revision of Ricinocarpos Desf. (Euphorbiaceae: Ricinocarpeae, Ricinocarpinae). Austrobaileya 7(3): 437 [taxonomic synonym]

taxonomic synonym of: Ricinocarpos velutinus F.Muell. legitimate

Council of Heads of Australasian Herbaria (2009), Australian Plant Census: - [secondary reference]

orthographic variant: Plagianthus monoica Ewart legitimate

Council of Heads of Australasian Herbaria (2009), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Ricinocarpos velutinus F.Muell. legitimate

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