Druce, G.C. (1917), Nomenclatorial Notes: chiefly African and Australian. The Botanical Exchange Club and Society of the British Isles Report for 1916, Suppl. 2: 629 [comb. nov.]

basionym: Petrophile dubia R.Br. legitimate

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 64 [secondary reference]

Rye, B.L. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Proteaceae. Flora of the Perth Region 1: 346-347, Fig. 124 [secondary reference]

taxonomic synonym: Isopogon roseus Lindl. legitimate common name: Pincushion Coneflower [n/a]

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 431-431 (map) [secondary reference]

nomenclatural synonym: Petrophile dubia R.Br. legitimate taxonomic synonym: Isopogon roseus Lindl. legitimate misapplication: Isopogon scaber Lindl. legitimate by Meisner, C.D.F. in Lehmann, J.G.C. (ed.) (1845), Proteaceae. Plantae Preissianae 1(4): 506-507 common name: pin-cushion cone flower [n/a] common name: rose cone flower [n/a]

• Etymology: "From Laltin, dubius, doubtful, possibly because of Brown's concern as to the correct generic classification of this species. He originally included it in Petrophile"

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Appendix: Isopogon. Flora of Australia 16: 479 [secondary reference]

• Lectotype: "Swan River [W.A.], 1827, W.Baxter; lecto (here chosen): BM."

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Isopogon. Flora of Australia 16: 219, Figs 58, 100, Map 220 [secondary reference]

nomenclatural synonym: Petrophile dubia R.Br. legitimate taxonomic synonym: Isopogon roseus Lindl. legitimate taxonomic synonym: Atylus roseus (Lindl.) Kuntze legitimate misapplication: Isopogon scaber Lindl. legitimate by Meisner, C.D.F. in Lehmann, J.G.C. (ed.) (1845), Proteaceae. Plantae Preissianae 1(4): 506-507 common name: Rose Coneflower [n/a] common name: Pincushion Coneflower [n/a]

• APC Dist.: WA

• Comment: Foreman lists "Ispogon scaber Meisn in J.G.C.Lehmann, Pl. Preiss. 1: 506 (1845)" as a taxonomic synonym of Isopogon dubius (R.Br.) Druce, with the "type" as L.Preiss 686. Since Meisner (1845) clearly referred to Isopogon scaber Lindl. Foreman's synonymisation is here treated as a misapplication by Meisner.

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Petrophila dubia R.Br. orth. var. nomenclatural synonym: Petrophile dubia R.Br. legitimate taxonomic synonym: Isopogon roseus Lindl. legitimate taxonomic synonym: Atylus roseus (Lindl.) Kuntze legitimate misapplication: Isopogon scaber Lindl. legitimate by Meisner, C.D.F. in Lehmann, J.G.C. (ed.) (1845), Proteaceae. Plantae Preissianae 1(4): 506-507

• APC Dist.: WA

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