Reichenbach, H.G. (1871), Bemerkungen fur eine australische orchideenkunde. Beitrage zur Systematischen Pflanzenkunde: 59 [tax. nov.]

• Type: "Swan River. Drummond 175! 180! 851! Preiss sine no. (herb. Vind. et. propr.). King Georges Sound v. Hügel (Herb. Vind.!)"

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 112 [secondary reference]

Sargent, O.H. (1906), Orchids occurring in York. Journal of the West Australian Natural History Society 2(3): 11 [secondary reference]

George, A.S. (5 May 1971), A check list of the Orchidaceae of Western Australia. Nuytsia 1(2): 188 [secondary reference]

• Lectotype: Swan River, Drummond 851 - lecto.: W, iso.: BM, W; Drummond 175 - syn.: W; Drummond 180 - syn.: W; Swan River, Preiss s.n. - syn.: W; King George Sound, Huegel - syn.: W.

Hoffman, N. & Brown, A. (1984), Orchids of South-West Australia: 274-275 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 56 [secondary reference]

Rye, B.L. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Orchidaceae. Flora of the Perth Region 2: 834 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Jones, D.L. (1988), Native Orchids of Australia: 257 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Clements, M.A. in Jones, D.L. (ed.) (August 1989), Catalogue of Australian Orchidaceae. Australian Orchid Research 1: 113 [secondary reference]

Hoffman, N. & Brown, A. (1992), Orchids of South-West Australia Edn. 2: 308 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Hoffman, N. & Brown, A. (1998), Orchids of South-West Australia Edn. 2 (revised): 308 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Paczkowska, G. & Chapman, A.R. (2000), The Western Australian Flora, a descriptive catalogue: 88 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Flora of the South West 1: 378 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Brown, A., Dundas, P., Dixon, K. & Hopper, S. (2008), Orchids of Western Australia: 254 [secondary reference]

common name: Yawning leek orchid [n/a]

• Etymology: "wide open, alluding to open appearance of the flowers"

Hoffman, N. & Brown, A. (2011), Orchids of South-West Australia Edn. 3: 370 [secondary reference]

common name: Yawning Leek Orchid [n/a]

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 236-237, photos 5-7 [secondary reference]

common name: Yawning Leek Orchid [n/a]

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: 32, 131 [secondary reference]

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

• APC Dist.: WA

Clements, M.A. & Jones, D.L. (2019), Notes on Australasian orchids 5: Paraprasophyllum, a new genus in Prasophyllinae (Diurideae). Australian Orchid Review 84(5): 32 [basionym]

basionym of: Paraprasophyllum hians (Rchb.f.) M.A.Clem. & D.L.Jones legitimate

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 356 [nomenclatural synonym]

nomenclatural synonym of: Paraprasophyllum hians (Rchb.f.) M.A.Clem. & D.L.Jones legitimate

Brown, A. (19 July 2022), The Complete Orchids of Western Australia 2: 96 [secondary reference]

common name: Yawning Leek Orchid [n/a]

• Etymology: "From the Latin hians (gaping, wide open), in reference to open appearance of the flowers."

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