Prasophyllum morganii Nicholls, 1930:179

Mignonette leek-orchid, Cobungra leek-orchid, Dense leek-orchid



Taxonomy & Nomenclature

Synonym/s: Prasophyllum retroflexum D.L.Jones (2000)


Conservation Status

Last (and only) record: 1933 (Silcock et al., 2019:SM:1)

Rediscovered in 2020


Still listed as Extinct by (Albani Rocchetti et al., 2022).



New South Wales & Victoria, Australia


Biology & Ecology










Original scientific description:

Nicholls, W. H. (1930). A New Prasophyllum. The Victorian Naturalist 46(9): 179, pl. VII.


Other references:

Albani Rocchetti, Giulia, Carta, Angelino, Mondoni, Andrea, Godefroid, Sandrine, Davis, Charles C., Caneva, Giulia, Albrecht, Matthew A., Alvarado, Karla, Bijmoer, Roxali, Borosova, Renata, Bräuchler, Christian, Breman, Elinor, Briggs, Marie, Buord, Stephane, Cave, Lynette H., Da Silva, Nílber Gonçalves, Davey, Alexandra H., Davies, Rachael M., Dickie, John B., Fabillo, Melodina, Fleischmann, Andreas, Franks, Andrew, Hall, Geoffrey, Kantvilas, Gintaras, Klak, Cornelia, Liu, Udayangani, Medina, Leopoldo, Reinhammar, Lars Gunnar, Sebola, Ramagwai J., Schönberger, Ines, Sweeney, Patrick, Voglmayr, Hermann, White, Adam, Wieringa, Jan J., Zippel, Elke Zippel and Abeli, Thomas. (2022). Selecting the best candidates for resurrecting extinct-in-the-wild plants from herbaria. Nature Plants 8: 1385-1393. [Supplementary Tables S1-S6]

Ayre, Bronwyn M. et al. (2022). The Kiandra leek orchid is the previously presumed extinct mignonette leek orchid (Orchidaceae; Orchidoideae): evidence from morphological comparisons. Phytotaxa 528(2): 71-83.

Backhouse, G. N. and Jeanes, J. A. (1995). The Orchids of Victoria. Carlton: Miegunyah Press, Melbourne University Press.

Bishop, A. (2000). Field Guide to the Orchids of New South Wales and Victoria. Sydney, NSW: University of New South Wales Press.

Clements, Mark A. and Jones, David L. (2019). Notes on Australasian Orchids 5: Paraprasophyllum, a new genus in Prasophyllinae (Diurideae). Australian Orchid Review 84(5): 25-38 [35].

Coates, Fiona, Jeanes, Jeff and Pritchard, Andrew. (2002). National Recovery Plan for Twenty-five Threatened Orchid taxa of Victoria, South Australia and New South Wales 2003-2007. Melbourne: Department of Sustainability and Environment.

DEECA [Department of Energy, Environment and Climate Action]. (2023). Flora and Fauna Guarantee Act 1988 Threatened List: June 2023. Published report by The State of Victoria Department of Energy, Environment and Climate Action, Melbourne, Victoria.

Department of the Environment (2016). Prasophyllum morganii in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: Accessed Fri, 16 Sep 2016 19:40:21 +1000.

Duncan, Mike and Coates, Fiona. (2010). National Recovery Plan for Twenty-two Threatened Orchids in South-eastern Australia. Department of Sustainability and Environment, Melbourne.

Freestone, Marc William. (2022). Conservation of Prasophyllum: understanding mycorrhizal fungi to save a genus of threatened orchids from extinction. PhD thesis, Research School of Biology, The Australian National University.

Jones, D. L. (2000). Ten new species of Prasophyllum R. Br. (Orchidaceae) from South-eastern Australia. The Orchadian 13(4): 149-173.

Jones, D. L. (2006). A complete guide to Native Orchids of Australia, including the island Territories. Sydney, NSW: New Holland Publishers (Australia) Pty Ltd.

McDougall, K. L. and Walsh, N. G. (2002). The flora of Nungar Plain, a treeless sub-alpine frost hollow in Kosciuszko National Park. Cunninghamia. 7(3): 601-610.

Silcock, Jen L., Field, Ashley R., Walsh, Neville G. and Fensham, Roderick J. (2019). To name those lost: assessing extinction likelihood in the Australian vascular flora. Oryx 54(2): 167-177. [Supplementary Material]

Walter, Kerry S. and Gillett, Harriet J. (eds.). (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. Gland, Switzerland & Cambridge, UK: IUCN – The World Conservation Union. lxiv + 862 pp.

Woinarski, John C. Z., Braby, M. F., Burbidge, A. A., Coates, D., Garnett, S. T., Fensham, R. J., Legge, S. M., McKenzie, N. L., Silcock, J L. and Murphy, B. P. (2019). Reading the black book: The number, timing, distribution and causes of listed extinctions in Australia. Biological Conservation 239: 108261.


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