Bentham, G. (30 May 1863), Flora Australiensis 1: 335 [tax. nov.]

taxonomic synonym: Eriostemon smithianus Benth. nom. inval., pro syn.

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 76 [secondary reference]

Wilson, Paul G. (10 December 1970), A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1): 30 [secondary reference]

• Lectotype: " "Queensland. Wide Bay, W. Hill; near Brisbane, Henne, N.S. Wales, Macleay river, Beckler," Lectotypus: "Mel. 4094; iso.: K (photo seen), Wide Bay, Queensland, leg. Hill." Syntypes: MEL409 (Beckler), MEL 4095 (Henne)."

taxonomic synonym: Eriostemon parvifolius R.Br. ex Benth. legitimate

Wilson, Paul G. (10 December 1970), A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1): 30 [basionym]

basionym of: Eriostemon difformis subsp. smithianus (Benth.) Paul G.Wilson legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 192 [nomenclatural synonym]

nomenclatural synonym of: Eriostemon difformis subsp. smithianus (Benth.) Paul G.Wilson legitimate

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1984), Rutaceae. Flora of South-eastern Queensland 1: 465 [nomenclatural synonym]

nomenclatural synonym of: Eriostemon difformis subsp. smithianus (Benth.) Paul G.Wilson legitimate

Wilson, Paul G. (16 September 1998), A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12(2): 251 [basionym]

basionym of: Philotheca difformis subsp. smithiana (Benth.) Paul G.Wilson legitimate

Weston, P.H. & Harden G.J. in Harden, G.J. (ed.) (2002), Philotheca. Flora of New South Wales Revised Edition 2: 295 [nomenclatural synonym]

nomenclatural synonym of: Philotheca difformis subsp. smithiana (Benth.) Paul G.Wilson legitimate

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Philotheca difformis subsp. smithiana (Benth.) Paul G.Wilson legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [secondary reference]

orthographic variant: Eriostemon difformis var. smithiana S.W.L.Jacobs & J.Pickard orth. var.

Wilson, Paul G. in Wilson, A.J.G. (ed.) (2013), Philotheca. Flora of Australia 26: 379 [nomenclatural synonym]

nomenclatural synonym of: Philotheca difformis subsp. smithiana (Benth.) Paul G.Wilson legitimate

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