''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
Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature res ...
and displacement by
invasive weed
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...
s. 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
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