Haworth, A.H. (1819), Supplementum Plantarum Succulentarum: 81 [tax. nov.]

Maiden, J.H. (1898), A preliminary study of the prickly-pears naturalised in New South Wales. Agricultural Gazette of New South Wales 9(9): 999 & plate [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 222 [secondary reference]

Alexander, W.B., Lane-Poole, C.E. & Herbert, D.A. (1920), Lists of the principal indigenous West Australian plants of economic importance and of naturalised aliens and weeds established in the state, with their vernacular name. Journal and Proceedings of the Royal Society of Western Australia 6(1): 45 [secondary reference]

Black, J.M. (1929), Additions and Corrections. Flora of South Australia 4: 698 [secondary reference]

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 344-345, Fig. 496 [secondary reference]

common name: Prickly Pear [n/a]

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 137 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 94 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1984), Cactaceae. Flora of South-eastern Queensland 1: 142 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

Telford, I.R.H. in George, A.S. (ed.) (1984), Cactaceae. Flora of Australia 4: 70 [secondary reference]

nomenclatural synonym: Cactus monacanthos Willd. legitimate

Telford, I.R.H. in George, A.S. (ed.) (1984), Cactaceae. Flora of Australia 4: 70 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

Harden, G.J. in Harden, G.J. (ed.) (1990), Cactaceae. Flora of New South Wales 1: 203 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

Stajsic, V. & Carr, G.W. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Cactaceae. Flora of Victoria 3: 125 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

Harden, G.J. in Harden, G.J. (ed.) (2000), Cactaceae. Flora of New South Wales Revised Edition 1: 203 [taxonomic synonym]

taxonomic synonym of: Opuntia vulgaris Mill. legitimate

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

taxonomic synonym: Opuntia vulgaris Mill. legitimate

Council of Heads of Australasian Herbaria (2005), Australian Plant Census: - APC [secondary reference]

misapplication: Opuntia vulgaris Mill. legitimate by Harden, G.J. in Harden, G.J. (ed.) (1990), Cactaceae. Flora of New South Wales 1: 203 misapplication: Opuntia vulgaris Mill. legitimate by Stajsic, V. & Carr, G.W. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Cactaceae. Flora of Victoria 3: 125-126, Fig. 25w-y

• APC Comment: A.D.Chapman, Austral. Pl. Name Index 2124 (1991) and I.R.H.Telford,Fl. Australia 4: 70 (1984) indicate Opuntia monacantha is based on Cactus monacantha Willd. However, Haworth's protologue does not support this interpretation (see also GRIN database: http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?25858)
• APC Dist.: WA (naturalised), SA (naturalised), Qld (naturalised), NSW (naturalised), Vic (naturalised)

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