Socotra is the largest island in the Socotra Archipelago, which also includes Abd al Kuri, Samhah, and Darsah. The islands are in the Indian Ocean east of the Horn of Africa and south of the Arabian Peninsula. The archipelago is home to dozens of endemic species and subspecies of plants, including the endemic genera Angkalanthus , Ballochia , Cephalocrotonopsis , Cyanixia , Duvaliandra , Haya , Lachnocapsa , Nirarathamnos , Paraerva , Socotrella , Tamridaea , and Trichocalyx . [1] Although it is politically part of Yemen, the World Geographical Scheme for Recording Plant Distributions treats the Socotra Archipelago as a separate botanical country. [2]
Plants are listed alphabetically by plant family.
Soqotri is a South Semitic language spoken by the Soqotri people on the island of Socotra and the two nearby islands of Abd al Kuri and Samhah, in the Socotra archipelago, in the Guardafui Channel. Soqotri is one of six languages that form a group called Modern South Arabian languages (MSAL). These additional languages include Mehri, Shehri, Bathari, Harsusi and Hobyot. All are spoken in different regions of Southern Arabia.
Boswellia is a genus of trees in the order Sapindales, known for its fragrant resin. The biblical incense frankincense is an extract from the resin of the tree Boswellia sacra, and is now produced also from B. frereana. Boswellia species are moderate-sized flowering plants, including both trees and shrubs.
Libinhania arachnoides, synonym Helichrysum arachnoides, is a species of flowering plant in the family Asteraceae. It is endemic to the islands of Socotra and Samhah in Yemen. Its natural habitat is subtropical or tropical dry forests.
Libinhania balfourii, synonym Helichrysum balfourii, is a species of flowering plant in the family Asteraceae. It is endemic to Socotra. Its natural habitat is subtropical or tropical dry forests.
Libinhania sphaerocephala, synonym Helichrysum sphaerocephalum, is a species of flowering plant in the family Asteraceae. It is endemic to Socotra. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical dry shrubland, and rocky areas.
Pulicaria stephanocarpa is a species of flowering plant in the family Asteraceae. It is endemic to Yemen's Socotra archipelago, where it is native to the islands of Socotra, Samhah, and Abd al Kuri. Its natural habitats are subtropical or tropical dry shrubland and rocky areas.
Panicum rigidum is a species of grass in the family Poaceae. It is a perennial endemic to the islands of Socotra, Samhah, and Abd al Kuri in the Socotra Archipelago, located off the coast of east Africa and politically part of Yemen. It grows in dwarf shrubland and woody-herb communities on desertic plains and rocky slopes from sea level to 600 metres elevation.
Gymnocarpos kuriensis is a species of plant in the family Caryophyllaceae. It is endemic to the islands of Socotra and Abd al Kuri in Yemen. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical dry shrubland, and rocky areas.
Limonium sokotranum is a species of plant in the family Plumbaginaceae. It is a subshrub or shrub endemic to Yemen's Socotra Archipelago, where it is native to the islands of Socotra, Samhah, and Abd al Kuri. Its grows in coastal dwarf shrubland and inland cliffs and rocky areas from sea-level to 550 metres elevation.
Nanorrhinum kuriense is a species of plant in the family Plantaginaceae. It is an annual native to the islands of Abd al Kuri and Samhah in Yemen's Socotra Archipelago. It grows on dry rocky slopes, and on open sandy plains often in the shade of boulders, from sea level to 500 metres elevation.
Oldenlandia pulvinata is a species of plant in the family Rubiaceae. It is a cushion-forming subshrub endemic to the islands of Socotra, Abd al Kuri, and Samhah in Yemen's Socotra Archipelago. It is widespread in shrubland and in rocky areas on plains and limestone plateaus from sea level to 800 metres elevation.
The Socotra Island xeric shrublands is a terrestrial ecoregion that covers the large island of Socotra and several smaller islands that constitute the Socotra Archipelago. The archipelago is in the western Indian Ocean, east of the Horn of Africa and south of the Arabian Peninsula. Politically the archipelago is part of Yemen, and lies south of the Yemeni mainland.
Dendrosicyos is a monotypic genus in the plant family Cucurbitaceae. The only species is Dendrosicyos socotranus, the cucumber tree. The species is endemic to the island of Socotra in Yemen, and is the only species in the Cucurbitaceae to grow in a tree form. The species name was originally spelled D. socotrana, but this is corrected to masculine grammatical gender according to the International Code of Nomenclature for algae, fungi, and plants.
Cissus subaphylla is a low shrub in the grape family Vitaceae. It is endemic to the Yemeni islands of Socotra and Samhah. The plant grows mainly in dry, low-lying areas on alluvial fans or on limestone slopes, and is rarely found above elevations of 300 metres (980 ft), where it is replaced by C. hamaderohensis. It does not have the climbing habit of other Cissus species, and its stems are flattened and gray-green in colour, with relatively small leaves and flowers. The tangled mats of C. subaphylla stems act as a protective covering for plants regularly eaten by goats and other browsing animals; the plant is thus important in the rehabilitation of species such as Dendrosicyos, Maerua and Commiphora.
The Socotra Archipelago, officially the Socotra Archipelago Governorate, abbreviated to Socotra Governorate, is one of the governorates of Yemen. It includes a number of islands in the Indian Ocean south of mainland Yemen, the largest of which is Socotra.
Libinhania is a genus of flowering plant in the family Asteraceae, native to Somalia and Socotra. The genus was established in 2017, as a result of a molecular phylogenetic study, which showed that a number of species endemic to Socotra, some of which had been placed in the genus Helichrysum, formed a clade that did not belong in that genus.