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

taxonomic synonym: Eriostemon rhombeus Lindl. legitimate

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

nomenclatural synonym: Eriostemon difformis A.Cunn. ex Endl. subsp. difformis legitimate

Jessup, L.W. (2003), Flora of South-eastern Queensland Volume 1 Changes to names or status of taxa: - [secondary reference]

nomenclatural synonym: Eriostemon difformis A.Cunn. ex Endl. subsp. difformis legitimate

Ross, J.H. & Walsh, N.G. (June 2003), A Census of the Vascular Plants of Victoria Edn. 7: 114 [secondary reference]

nomenclatural synonym: Eriostemon difformis A.Cunn. ex Endl. subsp. difformis legitimate

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Eriostemon difformis A.Cunn. ex Endl. var. difformis legitimate nomenclatural synonym: Eriostemon difformis A.Cunn. ex Endl. subsp. difformis legitimate

• APC Dist.: SA, Qld, NSW, Vic

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

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