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Ptisana purpurascens
Ptisana purpurascens is a critically endangered fern endemic to Ascension Island, the largest endemic plant there, known only from one population on Green Mountain. It is rarely grown outside its native range and is best treated as a wild conservation species rather than a garden plant.
Ptisana purpurascens is a species of fern in the family Marattiaceae that is endemic to Ascension Island. It is considered a critically endangered species.
Endemic to central Ascension Island in the South Atlantic Ocean, P. purpurascens is known only from a single population on the upper slopes of Green Mountain at altitudes of 700–860 m (2,300–2,820 ft). The majority of the population can be found on the south and east facing slopes, with a few isolated plants growing on the south-west slopes or amongst a bamboo thicket near the summit. The total extent of this species is estimated to be approximately 12 ha (30 acres), with the area of occupancy estimated to be less than 4.5 ha (11 acres).
Ptisana howeana · Ptisana oreades · Ptisana salicina · Ptisana
Text excerpted from the Wikipedia article Ptisana purpurascens by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
