Brown, R. (1830), Proteaceas Novas. Supplementum primum prodromi florae Novae Hollandiae: 9 [tax. nov.]

• Type: (not cited).

• Comment: Published as `α obovatus'.

Bentham, G. (1870), Flora Australiensis 5: 341 [basionym]

basionym of: Isopogon buxifolius var. obovatus (R.Br.) Benth. legitimate

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Isopogon. Flora of Australia 16: 222 [nomenclatural synonym]

nomenclatural synonym of: Isopogon buxifolius var. obovatus (R.Br.) Benth. legitimate

Rye, B.L. & Hislop, M. (9 October 2015), Typification and reinstatement of Isopogon spathulatus (Proteaceae: Leucadendreae). Nuytsia 25: 304 [nomenclatural synonym]

nomenclatural synonym of: Isopogon buxifolius var. obovatus (R.Br.) Benth. legitimate

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