Sporobolus durus Brongn.



Taxonomy & Nomenclature

Synonym/s: Vilfa brongniartii Steud.


Conservation Status

Extinct (Humphreys et al., 2019)

Last record: 1886 (before September) (Cronk, 1980:209; Lambdon et al., 2012); 1958?

IUCN RedList status: Extinct



Green Mountain, Ascension Island, Saint Helena


Biology & Ecology










Ascension Environmental Information Operations Utility. 2010. Annual plant census data. Georgetown, Ascension Island.

Ashmole, P. and Ashmole, M. 2000. St Helena and Ascension Island: a natural history. Anthony Nelson, Oswestry, U.K.

Cronk, Quentin. C. B. (1980). Extinction and survival in the endemic flora of Ascension Island. Biological Conservation 17(3): 207-219. ["Endangered, possibly Extinct"]

Duffey, E. 1964. The terrestrial ecology of Ascension Island. Journal of Applied Ecology 1: 219-251.

Gray, A., Gardner, S., Kirk, L., Robinson, P., Smölka, Z. and Webster, L. 2000. The status and distribution of the endemic vascular flora of Ascension Island. Unpublished Report.

Gray, A., Pelembe, T. and Stroud, S. 2005. The conservation of the endemic vascular flora of Ascension Island and the threats from alien species. Oryx 39(4): 1-6.

Hooker, J.D. 1867. On insular floras (British Association 1866). Gardener’s Chronicle 3: 50.

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]

Lambdon, P.W., Stroud, S., Gray, A., Niissalo, M. & Renshaw, O. 2012. Sporobolus durus. The IUCN Red List of Threatened Species 2012: e.T43927A2990995. Downloaded on 19 November 2016.

Packer, J.E. 2002. A concise guide to Ascension Island. South Atlantic Ascension Heritage Society, Georgetown.

Royal Botanic Gardens, Kew. 2009. Data extracted from notes accompanying collection of herbarium specimens. Accessed 2009. Royal Botanic Gardens, Kew, London.

Vojtek, Ján. (2020). Refining extinction estimations for plants of the UK Overseas Territories (UKOTs). MSc dissertation, Queen Mary, University of London.

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.


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