Stetsonia coryne, the toothpick cactus, is the sole species in the cactus genus Stetsonia. Stetsonia coryne is native to arid regions of South America, where it grows to a height of 15 to 25 ft tall. It contains mescaline and other alkaloids.
Obregonia, the artichoke cactus, is a monotypic genus of cacti, containing the species Obregonia denegrii. The species is endemic to the state of Tamaulipas in Mexico.
Caesalpinia pulcherrima is a species of flowering plant in the pea family Fabaceae, native to the tropics and subtropics of the Americas. It could be native to the West Indies, but its exact origin is unknown due to widespread cultivation. Common names for this species include poinciana, peacock flower, red bird of paradise, Mexican bird of paradise, dwarf poinciana, pride of Barbados, flos pavonis, and flamboyant-de-jardin. The Hawaiian name for this plant is ʻohai aliʻi.
Nepenthes rigidifolia is a critically endangered tropical pitcher plant endemic to Sumatra, where it grows at elevations of 1000–1600 m above sea level.
Fraxinus ornus, the manna ash or South European flowering ash, is a species of Fraxinus native to Southern Europe and Southwestern Asia, from Spain and Italy north to Austria and the Czech Republic, and east through the Balkans, Turkey, and western Syria to Lebanon and Armenia.
Senecio lamarckianus, the bois de chèvre, is a species of flowering plant in the aster family. It is endemic to the island of Mauritius and is threatened by habitat loss. It is named for the French philosopher, botanist and zoologist Jean-Baptiste Lamarck.
Aloe viridiflora is a species of plant in the genus Aloe. The species is endemic to Namibia with a wide range and is known from at least six different populations. Current trends are not known and the species is listed as LC on the IUCN Red List. However, it is scarce and Namibian authorities consider it threatened; the plant must not be removed or disturbed. It is the only known green-flowering aloe. Its natural habitats are dry savanna, subtropical or tropical dry shrubland, and rocky areas. It can produce hallucinations when ingested, leading to its occasional use in shamanic rituals.
Holothrix is a genus of flowering plants in family Orchidaceae. It includes 48 species native to sub-Saharan Africa and the southwestern Arabian Peninsula.
Kraussia socotrana is a species of plant in the family Rubiaceae. It is endemic to Socotra, Yemen. Its natural habitats are subtropical or tropical dry shrubland and rocky areas. The type was collected from Wadi Irih on the Nogad Plain.
Turraea socotrana is a species of flowering plant in the family Meliaceae. It is a shrub or tree endemic to the island of Socotra in Yemen. It is a rare plant which grows on cliffs and in ravines in the island's central and western limestone plateaus, and less commonly on granite in the Hajhir Mountains, from 500 to 700 meters elevation.
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.
Cyanixia is a genus of plants in the Iridaceae, first described in 2003. It contains only one known species, Cyanixia socotrana, a perennial, herbaceous and bulbous plant species endemic to the Island of Socotra in the Indian Ocean, part of the Republic of Yemen.
Pelargonium peltatum is a scrambling perennial plant with five shallow or deeply lobed, circular- to heart-shaped, somewhat fleshy leaves, sometimes with a differently coloured semicircular band, that has been assigned to the cranesbill family. It carries umbel-like inflorescences with 2–10, white to mauve, bilateral symmetrical flowers, each with a "spur" that is merged with the flower stalk. It is known by several common names including ivy-leaved pelargonium and cascading geranium. It is native to the Cape Provinces of South Africa. In its home range, it flowers year round but most vigorously from August to October.
Stenocarpus cryptocarpus, commonly known as the giant-leaved stenocarpus, is a species of flowering plant in the family Proteaceae and is endemic to north Queensland. It is a tree with buttress roots at the base, simple, mostly elliptical adult leaves, groups of cream-coloured flowers and narrow oblong follicles.
Nepenthes gantungensis is a tropical pitcher plant known from a single peak on the Philippine island of Palawan, where it grows at elevations of 1600–1784 m above sea level.
Senna sophera is a shrub or tree in the bean family Fabaceae. It is now widespread in tropical and subtropical regions of the world, but is believed to be native to tropical America. Originally described by Carl Linnaeus in 1753 as Cassia sophera, it has acquired a large number of synonyms. Vernacular names include algarrobilla, baner, kasunda, kasaundi (Hindi) and kolkasunda (Bengali).. This tree is called Gnazhar tree in Tamil. The flower of this tree has been extensively referred in poems of Sangam Tamil litterature.
Nepenthes leonardoi is a tropical pitcher plant known from a single locality in central Palawan, the Philippines. It is closely allied to several other Palawan endemics, including N. deaniana, N. gantungensis, and N. mira. The traps of this species reach at least 24 cm in height. Some specimens are noted for producing very dark, almost black, upper pitchers.
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.
Sterculia africana or African star-chestnut is a deciduous tree, belonging to the genus Sterculia and the family Malvaceae. The species is sometimes called the "mopopaja tree". It is distributed throughout Northeast Africa to Arabia.
Plumbago socotrana is a small shrub growing up to 2m tall, rather glaucous and covered in white mealy powder. It has yellow flowers.
