Pteris adscensionis is a fern species in the Pteridoideae subfamily of the Pteridaceae. It is endemic to Ascension Island, and there are thought to be fewer than 500 individuals left in the wild. Its natural habitat has been severely reduced due to the large number of species introduced to the island when it was first settled in the 18th century.
- Christenhusz, Maarten J. M.; Zhang, Xian-Chun; Schneider, Harald (18 February 2011). "A linear sequence of extant families and genera of lycophytes and ferns". Phytotaxa 19: 7–54. ISSN 1179-3163.
- Gray, A. 2003. Pteris adscensionis. 2006 IUCN Red List of Threatened Species. Downloaded on 23 August 2007.
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