Hoffman, N. & Brown, A. (1992), Orchids of South-West Australia Edn. 2: 223 [primary reference]

common name: Elephants' Ears [n/a] common name: Red Beaks [n/a]

Bernhardt, P. in Harden, G.J. (ed.) (1993), Lyperanthus. Flora of New South Wales 4: 212 [nomenclatural synonym]

nomenclatural synonym of: Lyperanthus nigricans R.Br. legitimate

Barker, W.R., Barker, R.M., Jessop, J. & Vonow, H. (ed.) (18 March 2005), Census of South Australian Vascular Plants 5th Edition. Journal of the Adelaide Botanic Gardens Supplement 1: 201 [nomenclatural synonym]

nomenclatural synonym of: Pyrorchis nigricans (R.Br.) D.L.Jones & M.A.Clem. legitimate

Council of Heads of Australasian Herbaria (28 February 2018), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Pyrorchis nigricans (R.Br.) D.L.Jones & M.A.Clem. legitimate

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