Rogers, R.S. (1909), A critical review of south Australian Prasophylla together with a description of some new species. Transactions, proceedings and report, Royal Society of South Australia 33: 211-212, Pl. XI(B), figs 1–8 [tax. nov.]

• Type: "Found growing in alluvial soil at Blackwood and National Park."

Rogers, R.S. in Black, J.M. (1922), Orchidaceae. Flora of South Australia 1: 126 [basionym]

basionym of: Prasophyllum patens var. pruinosum (R.S.Rogers) R.S.Rogers legitimate

Jones, D.L. (1988), Native Orchids of Australia: 263 [secondary reference]

nomenclatural synonym: Prasophyllum patens var. pruinosum (R.S.Rogers) R.S.Rogers legitimate

Clements, M.A. in Jones, D.L. (ed.) (August 1989), Catalogue of Australian Orchidaceae. Australian Orchid Research 1: 116 [secondary reference]

• Lectotype: "`Found growing in alluvial soil at Blackwood', 18 Oct. 1908, R. Fiveash s.n. (lectotype AD! here designated)."

nomenclatural synonym: Prasophyllum patens var. pruinosum (R.S.Rogers) R.S.Rogers legitimate taxonomic synonym: Prasophyllum fuscum var. grandiflorum Benth. legitimate

Bates, R.J. & Weber, J.Z. (7 December 1990), Orchids of South Australia: 113 (map), Figs 145, 158 & 159, Plate 140 [secondary reference]

nomenclatural synonym: Prasophyllum patens var. pruinosum (R.S.Rogers) R.S.Rogers legitimate common name: dull leek-orchid [n/a] common name: Plum leek-orchid [n/a]

• Etymology: "The name pruinosum refers to the light purple-plum colour of some forms."

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: 199 [secondary reference]

nomenclatural synonym: Prasophyllum patens var. pruinosum (R.S.Rogers) R.S.Rogers legitimate pro parte taxonomic synonym: Prasophyllum fuscum var. grandiflorum Benth. legitimate misapplication: Prasophyllum patens R.Br. legitimate by Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 318

Backhouse, G.N., Bates, R.J., Brown, A.P. & Copeland, L.M. (1 March 2016), Checklist of the orchids of Australia including its island territories: 33, 97 [secondary reference]

Council of Heads of Australasian Herbaria (28 February 2018), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Prasophyllum patens var. pruinosum (R.S.Rogers) R.S.Rogers legitimate pro parte taxonomic synonym: Prasophyllum fuscum var. grandiflorum Benth. legitimate misapplication: Prasophyllum patens R.Br. legitimate by Black, J.M. (1943), Flora of South Australia Edn. 2, 1: 221

• APC Dist.: SA

Clements, M.A. & Jones, D.L. (2019), Notes on Australasian orchids 5: Paraprasophyllum, a new genus in Prasophyllinae (Diurideae). Australian Orchid Review 84(5): 37 [basionym]

basionym of: Paraprasophyllum pruinosum (R.S.Rogers) M.A.Clem. & D.L.Jones legitimate

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 347 [nomenclatural synonym]

nomenclatural synonym of: Paraprasophyllum pruinosum (R.S.Rogers) M.A.Clem. & D.L.Jones legitimate

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