Anthony G. Miller

Aloe jawiyon is a species of succulent plant in the genus Aloe first described in 2004. It is endemic to the island of Socotra, Yemen, located in the Indian Ocean (near to the mouth of the Gulf of Aden), approximately 200 miles (321 km) off of the southwestern coast of the Arabian Peninsula and around 430 miles (692 km) east of the coast of Somalia.

Begonia samhaensis is a species in the family Begoniaceae. Similar to Begonia socotrana but separated by the asymmetrically ovate leaves and the unequal tepals in the male flowers; outer tepals broadly orbicular, 1.5–2.2 × 1.7–2.5 cm; inner obovate elliptic, 1.4–2.0 × 0.8 × 1.4 cm.

Pelargonium insularis is a species of plant in the family Geraniaceae. It is endemic to the Samhah island in the Socotra Archipelago of Yemen. It was discovered in 1999 on the north-facing limestone escarpment on the island. It represents the first record of the genus from the Socotra Archipelago. At the time of its discovery only a single plant was found and an extensive search failed to find more. The cliffs in which it occurs are frequently enveloped in low cloud and provide a relatively moist refugium occupying less than 5 km2, on an otherwise desertic island. Local informants know of the

Ochradenus socotranus is a species of plant in the Resedaceae family. It is a shrub endemic to the islands of Socotra and Samhah in Yemen's Socotra Archipelago. Its natural habitat is dry rocky slopes from 10 to 700 metres elevation. The species is most closely related to Ochradenus arabicus Chaudhary, Hillc. and A.G.Mill. from the Arabian Peninsula and O. baccatus Del. from the Arabian Peninsula and northeastern Africa. It is dioecious like O. arabicus, but differs in having fleshy fruits and dull rather than glossy seeds. O. baccatus has hermaphrodite flowers and rugose seeds.

Euphorbia hamaderoensis is a species of plant in the family Euphorbiaceae. It is endemic to Socotra in Yemen. Its natural habitat is rocky areas.

Cadaba insularis is a critically endangered shrub in the Capparaceae family endemic to the island of Socotra in Yemen. Its natural habitat is subtropical or tropical dry shrubland, and is threatened by habitat loss.

Polygala kuriensis is a species of plant in the family Polygalaceae. It is endemic to the island of Abd al Kuri in Yemen's Socotra Archipelago. Its natural habitats are subtropical or tropical dry shrubland and rocky areas.

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Hibiscus quattenensis is a species of flowering plant in the genus Hibiscus, in the family Malvaceae. It is endemic to the island of Socotra in Yemen. It is common on the coastal plains and dry limestone foothills and plateaus of southwestern Socotra from sea level to 600 metres elevation, where it grows in Croton socotranus shrubland and succulent shrubland.

Hibiscus noli-tangere is a species of flowering plant in the family Malvaceae. It is found only in Yemen. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss. Noli me tangere ('touch me not') is the Latin version of a phrase spoken, according to John 20:17, by Jesus to Mary Magdalene when she recognized him after his resurrection. The biblical scene gave birth to a long series of depictions in Christian art from Late Antiquity to the present. H. noli-tangere has sharp glass-like needles that detach from its leaves when touched.

Hibiscus diriffan is a species of flowering plant in the family Malvaceae. It is endemic to the island of Socotra in Yemen. It grows on the southern limestone plateaus from Diksam to Wadi Irih and northwards to the granite of the Hajhir Mountains, from 20 to 1,300 metres elevation. It is similar to H. quattenensis, and is distinguished by narrower leaves with a distinctly cordate base and crenate to lobed margins, and densely stellate-hairy rather than glabrescent pedicels, epicalyx, and calyx.

Hibiscus dioscorides is a species of flowering plant in the family Malvaceae. It is a shrub endemic to the island of Socotra in Yemen. It grows on granite cliffs and among granite boulders in the eastern Hajhir Mountains at approximately 950 metres elevation. It is known only from the type specimen gathered on Jebal Jaaf. The species can be distinguished from other woody Hibiscus on Socotra by its five-lobed cup-shaped calyx and filiform epicalyx lobes. It appears most similar to H. noli-tangere, and is differentiated by the indumentum of the calyx and epicalyx, linear rather than filiform

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Portulaca samhaensis is a species of flowering plant in the purslane family, Portulacaceae. It is endemic to Socotra, part of Yemen. Its natural habitat is subtropical or tropical dry shrubland. It is threatened by habitat loss.

Libinhania suffruticosa, synonym Helichrysum suffruticosum, 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 nimmoana, synonym Helichrysum nimmoanum, is a species of flowering plant in the family Asteraceae. It is endemic to the island of Socotra in Yemen. Its natural habitat is subtropical or tropical dry forests.

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.

Ledebouria insularis is a species of plant that is endemic to Samhah, one of the islands of Socotra, part of Yemen.

Ledebouria grandifolia is a species of flowering plant in the Asparagaceae family. It is endemic to Socotra. Its natural habitats are subtropical or tropical dry forests and rocky areas.

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Camelinopsis is a genus of flowering plants in the family Brassicaceae. It includes two species native to northern Iraq and Iran. Camelinopsis alborzica Doostm. – northern Iran (western Alborz Mountains) Camelinopsis campylopoda (Bornm. & Gauba) A.G.Mill. – west-central Iran and northern Iraq Camelinopsis kurdica (A.G.Mill.) Al-Shehbaz & A.G.Mill. is now placed in genus Pseudocamelina as Pseudocamelina kurdica (A.G.Mill.) Esmailbegi & Al-Shehbaz.

Blepharis dhofarensis is a species of plant in the family Acanthaceae. It is a shrub that grows to around 5m tall and is found in Oman and Yemen. Blepharis dhofarensis grows on wet escarpment woodlands and it prefers dense thickets on steep slopes. It is threatened by habitat loss. Recent molecular work has placed it in the genus Acanthus instead of Blepharis.

Withania qaraitica is a shrubby and perennial herb up to 1 m (3 ft 3 in) tall with bright orange-red seeds patterned with honeycomb-like markings pale yellowish brown in color. It has only been found in Dhofar, but may occur in wet woodlands over the border in south Yemen. It is closely related to two species, Withania adunenis and W. riebeckii. W. qaraitica occurs commonly in the wet woodlands, but can be found around settlements where they have frequently been transplanted.

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Libinhania rosulata, synonym Helichrysum rosulatum, is a species of flowering plant in the family Asteraceae. It is endemic to Socotra. Its natural habitat is rocky areas.