Thunberg, C.P. (1800), Prodromus Plantarum Capensium 2: 141 [tax. nov.]

Bolus, H. & Wolley-Dod, A.H. (1904), A list of the floweirng plants and ferns of the Cape Peninsula, with notes on some of the critical species. Transactions of the South African Philosophical Society 14: 289 [basionym]

basionym of: Berkheya rigida (Thunb.) Bolus & Wolley-Dod legitimate

Ewart, A.J., White, J. & Rees, B. (1909), Contributions to the Flora of Australia No. 11. Proceedings of the Royal Society of Victoria 22(1): 20 [basionym]

basionym of: Berkheya rigida (Thunb.) Ewart, Jean White & B.Rees isonym

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 891 [nomenclatural synonym]

nomenclatural synonym of: Berkheya rigida (Thunb.) Bolus & Wolley-Dod legitimate

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Asteraceae. Flora of Victoria 4: 719 [nomenclatural synonym]

nomenclatural synonym of: Berkheya rigida (Thunb.) Bolus & Wolley-Dod legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Berkheya rigida (Thunb.) Ewart, Jean White & B.Rees isonym

Ghafoor, A. in Wilson, A.J.G. (ed.) (2015), Berkheya. Flora of Australia 37: 168 [nomenclatural synonym]

nomenclatural synonym of: Berkheya rigida (Thunb.) Bolus & Wolley-Dod legitimate

Council of Heads of Australasian Herbaria (2016), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Berkheya rigida (Thunb.) Bolus & Wolley-Dod legitimate

---