Dressler, R.L. (1957), Contributions of the Gray Herbarium of Harvard University 182: 152 [comb. et stat. nov.]

basionym: Pedilanthus smallii Millsp. legitimate

Forster, P.I. (9 September 1992), Notes on the naturalised flora of Queensland, 2. Austrobaileya 3(4): 762 [secondary reference]

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

nomenclatural synonym: Pedilanthus smallii Millsp. legitimate

• APC Dist.: Qld (naturalised)

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Euphorbia tithymaloides subsp. smallii (Baill.) V.W.Steinm. legitimate

Bostock, P.D. & Holland, A.E. (August 2018), Appendix A: New names and name and status changes 2017 to 2018. Introduction to the Census of the Queensland Flora 2018: 8 [nomenclatural synonym]

nomenclatural synonym of: Euphorbia tithymaloides subsp. smallii (Baill.) V.W.Steinm. legitimate

---