Persoonia laxa L.A.S. Johnson & P.H. Weston, 1991:285



Taxonomy & Nomenclature



Conservation Status

Extinct (Humphreys et al., 2019; Albani Rocchetti et al., 2022)

Last record: 1908

IUCN RedList status: Extinct


This species has been identified as one of the 50 best candidates for de-extinction, ranking 23/50 (Albani Rocchetti et al., 2022).



New South Wales, Australia


Biology & Ecology










Albani Rocchetti, G., Carta, A., Mondoni, A. et al. (2022). Selecting the best candidates for resurrecting extinct-in-the-wild plants from herbaria. Nature Plants 8: 1385-1393. [Supplementary Tables S1-S6]

Auld, T. & Weston, P. 2020. Persoonia laxa. The IUCN Red List of Threatened Species 2020: e.T113204000A113309830. Downloaded on 27 June 2021.

Benson, D. and McDougall, L. 2000. Ecology of Sydney plant species. Part 7b Dicotyledon families Proteaceae to Rubiaceae. Cunninghamia 6(4): 1017-1202.

Department of the Environment. (2015). Persoonia laxa in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: Accessed Sat, 7 Feb 2015 18:00:38 +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. [Abstract] [Supplementary Dataset 1]

Silcock, J. L. et al. (2019). To name those lost: assessing extinction likelihood in the Australian vascular flora. Oryx 54(2): 167-177.

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.

Weston, P. H. (1995). Subfam. 1. Persoonioideae. In: Flora of Australia. 16:47-125. Melbourne, Victoria: CSIRO.

P.H.Weston (2017) Persoonia laxa. In: Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. [Date Accessed: 14 January 2020]


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