Britton, N.L. & Rose, J.N. (1909), The genus Cereus and its allies in North America. Contributions from the United States National Herbarium 12: 432 [comb. nov.]

basionym: Cactus pentagonus L. legitimate

Kleinschmidt, H.E. & Johnson, R.W. (1977), Weeds of Queensland: 211 [secondary reference]

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1984), Cactaceae. Flora of South-eastern Queensland 1: 143 [secondary reference]

nomenclatural synonym: Cactus pentagonus L. legitimate common name: Sword Pear [n/a]

Telford, I.R.H. in George, A.S. (ed.) (1984), Cactaceae. Flora of Australia 4: 76-78, Map 100 [secondary reference]

nomenclatural synonym: Cactus pentagonus L. legitimate nomenclatural synonym: Cereus pentagonus (L.) Haw. legitimate common name: Barbed-wire Cactus [n/a]

Halford, D.A. in Henderson, R.J.F. (ed.) (1994), Cactaceae. Queensland Vascular Plants: Names and Distribution: 54 [secondary reference]

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

taxonomic synonym of: Acanthocereus tetragonus (L.) Hummelinck legitimate

Council of Heads of Australasian Herbaria (2005), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Acanthocereus tetragonus (L.) Hummelinck legitimate

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