Brako, L. & Zarucchi, J.L. (1993), Appendix 1: New Combinations and New Names for Peruvian Plants. Catalogue of the Flowering Plants and Gymnosperms of Peru: 1258 [comb. et stat. nov.]

basionym: Andropogon drummondii Nees ex Steud. legitimate nomenclatural synonym: Sorghum x drummondii (Nees ex Steud.) Millsp. & Chase legitimate

Jacobs, S.W.L. & McClay, K.L. in Harden, G.J. (ed.) (1993), Sorghum. Flora of New South Wales 4: 437 [secondary reference]

Jacobs, S.W.L., Whalley, R.D.B. & Wheeler, D.J.B. (2008), Grasses of New South Wales Edn. 4: 372 (fig.) [secondary reference]

Council of Heads of Australasian Herbaria (2009), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Sorghum x drummondii (Nees ex Steud.) Millsp. & Chase legitimate

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