Ising, E.H. (1958), Notes on the Flora of South Australia. Transactions of the Royal Society of South Australia 81: 167, figs 10–14 [tax. nov.]

• Type: "Evelyn Downs, about 90 miles by road south-west of Oodnadatta, E.H. Ising, No. 3746, 7.10.1954, holotype AD 95736042."

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 202 [secondary reference]

Eichler, Hj. in Jessop, J.P. (ed.) (1981), Zygophyllaceae. Flora of Central Australia: 182 [secondary reference]

Barker, R.M. (6 March 1998), Notes on Zygophyllum (Zygophyllaceae) in Australia including the descriptions of five new species and one new subspecies, revised keys and typifications. Journal of the Adelaide Botanic Gardens 18(1): 67 [secondary reference]

• Type: E.H.Ising, 3746, 7.x.1954, South Australia, Evelyn Downs, about 90 miles by road south-west of Oodnadatta (AD 95736042); isotype: AD95736043.

Beier, B.-A., Chase, M.W. & Thulin, M. (2003), Phylogenetic relationships and taxonomy of subfamily Zygophylloideae (Zygophyllaceae) based on molecular and morphological data. Plant Systematics and Evolution 240: 30 [basionym]

basionym of: Roepera crassissima (Ising) Beier & Thulin legitimate

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [secondary reference]

nomenclatural synonym: Roepera crassissima (Ising) Beier & Thulin legitimate

• APC Dist.: NT, SA

Barker, R.M. in Wilson, A.J.G. (ed.) (2013), Zygophyllaceae. Flora of Australia 26: 565, Fig. 82 O-T [secondary reference]

nomenclatural synonym: Roepera crassissima (Ising) Beier & Thulin legitimate

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

nomenclatural synonym of: Roepera crassissima (Ising) Beier & Thulin legitimate

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