Sporobolus durus was a species of grass in the Poaceae family, found only on Ascension Island. It is extinct due to overgrazing and displacement by invasive weeds. Its date of extinction is unknown; it was last recorded in 1886 but not searched for, specifically, until 1998.
- Gray, A. 2003. Sporobolus durus. 2006 IUCN Red List of Threatened Species. Downloaded on 20 July 2007.
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