Steinmann, V.W. (2003), The submersion of Pedilanthus into Euphorbia (Euphorbiaceae). Acta Botanica Mexicana 65: 50 [comb. et stat. nov.]

basionym: Pedilanthus smallii Millsp. legitimate

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Pedilanthus smallii Millsp. legitimate nomenclatural synonym: Pedilanthus tithymaloides subsp. smallii (Millsp.) Dressler legitimate

• APC Dist.: Qld (naturalised)

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 [secondary reference]

nomenclatural synonym: Pedilanthus tithymaloides subsp. smallii (Millsp.) Dressler legitimate

---