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Portulaca sedifolia

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA CARYOPHYLLALES PORTULACACEAE

Scientific Name: Portulaca sedifolia
Species Authority: A.G.Mill.

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Assessor(s): Miller, A.
Reviewer(s): Abuzinada, A.H. & AL-Eisawi, D.M.H. (Arabian Plants Red List Authority)
Justification:
Portulaca sedifolia is restricted to a limestone ridge at the extreme western end of Soqotra with a total estimated area of occupancy of less than 10 km². At present the rapid development of the island poses no threat to this unique habitat: the area is inhospitable, inaccessible by road and there is a lack of potable water. However, its restricted distribution and the very limited extent of the niche which it occupies means that it is vulnerable to any change. It is strongly suspected that this marginal habitat is threatened by the long-term trend of lower rainfall in the region and would be particularly vulnerable to the effects of global warming.

Geographic Range [top]

Countries:
Native:
Yemen (Socotra)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Only known from the ridge above Jebel Shu'ub where it occurs in small depressions on limestone slabs on an exposed ridge. Flower measurements based on buds; no fully open flowers have been seen.
Systems: Terrestrial

Citation: Miller, A. 2004. Portulaca sedifolia. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 24 November 2014.
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