Sporobolus durus was a species of grass in the family Poaceae, found only on Ascension Island in the South Atlantic. 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. References durus Flora of Ascension Island Grasses of Africa Extinct plants Extinct biota of Africa Plant extinctions since 1500 Taxonomy articles created by Polbot Taxa named by Adolphe-Théodore Brongniart