Deyeuxia lawrencei Vickery (year?)

Lawrence's bentgrass



Taxonomy & Nomenclature

Synonym/s: Calamagrostis lawrencei


"Taxonomic uncertainty - very close to Deyeuxia quadriseta and known only from poor condition collections"

(Silcock et al., 2019:SM:1)


Conservation Status

Extinct (Humphreys et al., 2019; Albani Rocchetti et al., 2022) or taxonomically suspect (Silcock et al., 2019:SM:1)

Last record: 1831 (Silcock et al., 2019:SM:1)



Tasmania (Launceston area?), Australia


Biology & Ecology










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]

Curtis, W. M. and Morris, D. I. (1994). The Student’s Flora of Tasmania, Part 4B. Hobart: Printing Authority of Tasmania.

Department of the Environment. (2015). Deyeuxia lawrencei in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: Accessed Mon, 2 Feb 2015 23:52:44 +1100.

Hnatiuk, R.J. (1990). Census of Australian vascular plants. Australian Flora and Fauna Series 11: 1-650.

Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. [Supplementary Dataset 1]

Kirkpatrick, J. B. and Gilfedder, L. A. (1999). Threatened plant species in your bush (Kit 5). In: Tasmanian bushcare toolkit. Hobart: Department of Primary Industries Water and Environment.

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]

Tasmanian Public Land Use Commission. (1996). Environment & Heritage Report Vol IV, Background Report, Part C, Tasmanian Commonwealth Regional Forest Agreement, Hobart.

Threatened Species Section (2015). Deyeuxia lawrencei (lawrences bentgrass): Species Management Profile for Tasmania's Threatened Species Link. Department of Primary Industries, Parks, Water and Environment, Tasmania. Accessed on 2/2/2015.

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.

Wapstra, Mark, Duncan, F., Buchanan, A. and Schahinger, R. (2006). Finding a botanical Lazarus: tales of Tasmanian plant species ‘risen from the dead’. The Tasmanian Naturalist 128: 61-85.

C.M.Weiller, N.G.Walsh, I.R.Thompson (2017) Deyeuxia lawrencei. In: Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. [Date Accessed: 14 January 2020]

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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