Kuntze, C.E.O. (5 November 1891), Revisio Generum Plantarum 2: 577 [comb. nov.]

basionym: Isopogon formosus R.Br. legitimate

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Isopogon. Flora of Australia 16: 208 [nomenclatural synonym]

nomenclatural synonym of: Isopogon formosus 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: 169 [nomenclatural synonym]

nomenclatural synonym of: Isopogon formosus R.Br. legitimate

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Isopogon formosus R.Br. legitimate

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