Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Appendix: Isopogon. Flora of Australia 16: 481 [comb. nov.]

basionym: Isopogon petrophiloides R.Br. legitimate

• APC Dist.: WA

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Isopogon. Flora of Australia 16: 207, Map 199 [secondary reference]

nomenclatural synonym: Isopogon petrophiloides R.Br. legitimate

Rye, B.L. & Hislop, M. (8 June 2017), Two new synonyms in Western Australian Proteaceae: Isopogon heterophyllus and I. teretifolius subsp. petrophiloides. Nuytsia 28: 171 [taxonomic synonym]

taxonomic synonym of: Isopogon teretifolius R.Br. legitimate

Parker, C.M. & Percy-Bower, J.M. (22 March 2018), Updates to Western Australia’s vascular plant census for 2017. Nuytsia 29: 9 [taxonomic synonym]

taxonomic synonym of: Isopogon teretifolius R.Br. legitimate

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

taxonomic synonym of: Isopogon teretifolius R.Br. legitimate

Rye, B.L. & Hislop, M. (5 May 2020), Sixty years in the making: Isopogon nutans (Proteaceae), a new species with pendulous flower heads. Nuytsia 30: 95 [pro parte misapplied]

pro parte misapplied to: Isopogon nutans C.A.Gardner ex Rye & Hislop legitimate by Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Appendix: Isopogon. Flora of Australia 16: 481

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