Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Fabales Leguminosae

Scientific Name: Indigofera sokotrana
Species Authority: Vierh.
Indigofera gerardiana Graham.
Taxonomic Notes: Synonym = Indigofera gerardiana Graham.

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Miller, A.
Reviewer(s): Abuzinada, A.H. & AL-Eisawi, D.M.H. (Arabian Plants Red List Authority)
Common in several vegetation types and under no present or perceived threat.
Previously published Red List assessments:
1998 Endangered (E)
1998 Vulnerable (VU)

Geographic Range [top]

Range Description: Endemic to Soqotra.
Countries occurrence:
Yemen (Socotra)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Current Population Trend: Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: Evergreen and semi-deciduous montane woodland. Altitude of 500–1,350 m.

Distinct from other species on the island in both its habit and habitat: it is the only species that grows as a tree rather than as a herbs or shrublet and is the only species restricted to the relatively moist submontane vegetation of higher altitudes in the Haggeher mountains. It is probable that I. socotrana has a different evolutionary history from that of most other Soqotran Indigofereae: these radiated in response to the advance of arid conditions throughout Northwest Africa (Schrire 1995) during the Miocene.

One of the few arborescent Indigofera species. It is scattered relatively sparsely in areas of submontane and montane woodland.
Systems: Terrestrial

Citation: Miller, A. 2004. Indigofera sokotrana. The IUCN Red List of Threatened Species 2004: e.T33685A9796755. . Downloaded on 13 October 2015.
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