Randell, B.R. (19 December 1989), Revision of Cassiinae in Australia 2. Senna Miller sect. Psilorhegma (J.Vogel) Irwin & Barneby. Journal of the Adelaide Botanic Gardens 12(2): 206 [comb. nov.]

basionym: Cassia costata J.F.Bailey & C.T.White legitimate taxonomic synonym: Cassia australis var. glaucescens Benth. legitimate

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Caesalpiniaceae. Flora of the Kimberley Region: 354, Fig. 105C [secondary reference]

nomenclatural synonym: Cassia costata J.F.Bailey & C.T.White legitimate taxonomic synonym: Cassia australis var. glaucescens Benth. legitimate

Kenneally, K.F., Edinger, D.C. & Willing, T. (1996), Broome and Beyond. Plants and people of the Dampier Peninsula, Kimberley, Western Australia: 77 [secondary reference]

nomenclatural synonym: Cassia costata J.F.Bailey & C.T.White legitimate common name: Ram's Horns [n/a]

Randell, B.R. & Barlow, B.A. in McCarthy, P.M. (ed.) (1998), Senna. Flora of Australia 12: 101-102, Map 83 [secondary reference]

nomenclatural synonym: Cassia costata J.F.Bailey & C.T.White legitimate taxonomic synonym: Cassia australis var. glaucescens Benth. legitimate

Council of Heads of Australasian Herbaria (2005), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Cassia costata J.F.Bailey & C.T.White legitimate taxonomic synonym: Cassia australis var. glaucescens Benth. legitimate misapplication: Cassia australis Sims legitimate by Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 90

• APC Dist.: WA, NT, Qld

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