Backeberg, C. (1939), Cactaceae. Jahrbucher der Deutschen Kakteen-Gesellschaft 1939, pt. 2: 12 [comb. nov.]

basionym: Pereskia subulata Muehlenpf. legitimate

Jessup, L.W. (2003), Flora of South-eastern Queensland Volume 1 Changes to names or status of taxa: - [secondary reference]

nomenclatural synonym: Opuntia subulata (Muehlenpf.) Engelm. legitimate

Barker, W.R., Barker, R.M., Jessop, J. & Vonow, H. (ed.) (18 March 2005), Census of South Australian Vascular Plants 5th Edition. Journal of the Adelaide Botanic Gardens Supplement 1: 48 APC [secondary reference]

nomenclatural synonym: Pereskia subulata Muehlenpf. legitimate nomenclatural synonym: Opuntia subulata (Muehlenpf.) Engelm. legitimate taxonomic synonym: Peireskia subulata Muehlenpf. orth. var.

• APC Dist.: SA (naturalised)

Chinnock, R.J. (2015), Feral opuntioid cacti in Australia Part 1. Cylindrical -stemmed genera: Austrocylindropuntia, Cylindropuntia and Corynopuntia. Journal of the Adelaide Botanic Gardens Supplement 3: 26-27, 50-51 [secondary reference]

nomenclatural synonym: Pereskia subulata Muehlenpf. legitimate nomenclatural synonym: Opuntia subulata (Muehlenpf.) Engelm. legitimate taxonomic synonym: Opuntia exaltata A.Berger legitimate taxonomic synonym: Austrocylindropuntia exaltata (A.Berger) Backeb. legitimate

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