Lehmann, J.G.C. in Hooker, W.J. (ed.) (1855), Hooker's Journal of Botany and Kew Garden Miscellany 7: 68 [tax. nov.]

• Type: "Drummond. coll. vi. n. 172"

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 65 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 65 [secondary reference]

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 504 (map) [secondary reference]

• Etymology: "From Latin, inconspicuus, possibly referring to the whole shrub, which is small and has unobtrusive foliage."

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

basionym of: Isopogon inconspicuus (Meisn.) Foreman legitimate

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Isopogon. Flora of Australia 16: 213 [nomenclatural synonym]

nomenclatural synonym of: Isopogon inconspicuus (Meisn.) Foreman legitimate

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Petrophile. Flora of Australia 16: 193 [secondary reference]

• Text: "This is Isopogon inconspicuus (Meisn.) Foreman."

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

orthographic variant: Petrophila inconspicua Meisn. orth. var.

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

nomenclatural synonym of: Isopogon inconspicuus (Meisn.) Foreman legitimate

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