Asclepias is a genus of herbaceous, perennial, flowering plants known as milkweeds, named for their latex, a milky substance containing cardiac glycosides termed cardenolides, exuded where cells are damaged. Most species are toxic to humans and many other species, primarily due to the presence of cardenolides, although, as with many such plants, there are species that feed upon them and from them. Most notable are monarch butterflies, who use and require certain milkweeds as host plants for their larvae.
Cynanchum is a genus of about 300 species including some swallowworts, belonging to the family Apocynaceae. The taxon name comes from Greek kynos and anchein, hence the common name for several species is dog-strangling vine. Most species are non-succulent climbers or twiners. There is some evidence of toxicity.
The queen butterfly is a North and South American butterfly in the family Nymphalidae with a wingspan of 80–85 mm. It is orange or brown with black wing borders and small white forewing spots on its dorsal wing surface, and reddish ventral wing surface fairly similar to the dorsal surface. The ventral hindwings have black veins and small white spots in a black border. The male has a black androconial scent patch on its dorsal hindwings. It can be found in meadows, fields, marshes, deserts, and at the edges of forests.
Adenium obesum is a poisonous species of flowering plant belonging to the tribe Nerieae of the subfamily Apocynoideae of the dogbane family, Apocynaceae. It is native to the Sahel regions south of the Sahara, tropical and subtropical eastern and southern Africa and also the Arabian Peninsula. Common names include Sabi star, kudu, mock azalea, impala lily and desert rose. Adenium obesum is a popular houseplant and bonsai in temperate regions.
Panicum socotranum is a species of grass in the family Poaceae.
Hypericum socotranum is a species of flowering plant in the Hypericaceae family which is endemic to the island of Socotra in Yemen. Its natural habitats are subtropical or tropical dry forests and rocky areas.
Teucrium socotranum is a species of flowering plant in the family Lamiaceae. It is found only in the Socotra Islands, part of the nation of Yemen. Its natural habitat is rocky areas.
Erythroxylum socotranum is a species of plant in the Erythroxylaceae family. It is endemic to Yemen. Its natural habitat is rocky areas. It is threatened by habitat loss.
Heliotropium socotranum is a species of plant in the family Boraginaceae. It is endemic to the island of Socotra. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.
Funastrum angustissimum, synonym Sarcostemma angustissima, is a species of plant in the family Apocynaceae. It is endemic to the Galápagos Islands.
Sarcostemma is a formerly recognized genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1810. The name is derived from the Greek words σαρκὸς (sarkos), meaning "flesh," and στέμμα (stemma), meaning "garland". Members of the genus were known generally as climbing milkweeds or caustic bushes. The genus Sarcostemma has been shown to be nested within the genus Cynanchum, and in 2012 Sarcostemma was put into synonymy with Cynanchum.
Cynanchum viminale is a leafless succulent plant in the family Apocynaceae. The species is native to West Africa, the Indian Ocean and Western Pacific region. The species' natural range extends from South Africa throughout much of Africa and the Middle East to India, Indochina, Southern China, Indomalaya and into Meganesia. The species is also found on several Indian Oceans islands including Mauritius, Réunion and the Seychelles.
Periploca is a genus of plants in the family Apocynaceae, first described for modern science by Linnaeus in 1753. It is native to Europe, Asia, and Africa.
- Periploca aphyllaDecne. - Middle East from Sinai to Pakistan
- Periploca calophylla(Wight) Falc. - S China, Nepal, Bhutan, Assam, E Himalayas, Vietnam
- Periploca chevalieriBrowicz - Cape Verde Islands
- Periploca chrysanthaD.S. Yao, X.D. Chen & J.W. Ren - Gansu Province in China
- Periploca floribundaTsiang - Yunnan, Vietnam
- Periploca forrestiiSchltr. - Guangxi, Guizhou, Qinghai, Sichuan, Tibet, Yunnan, India, Kashmir, Myanmar, Nepal
- Periploca graecaL. - Mediterranean
- Periploca hydaspidisFalc. - Kashmir
- Periploca laevigataAiton - Canary Islands, Savage Islands
- Periploca linearifoliaQuart.-Dill. & A. Rich - Ethiopia
- Periploca nigrescensAfzel. - W Africa
- Periploca refractifoliaGilli - Tanzania
- Periploca sepiumBunge - widespread across much of China
- Periploca tsiangiiD. Fang & H.Z. Ling - Guangxi Province in China
- Periploca visciformis(Vatke) K. Schum. - Somalia
Cynanchum elegans, the white-flowered wax plant, is a plant species in the genus Cynanchum found in New South Wales in Australia. It is a threatened species.
Cynanchum acutum is a species of climbing vine swallowworts native to Europe, Africa, and Asia.
Cynanchum daltonii, synonym Sarcostemma daltonii, is a species of flowering plants of the family Apocynaceae. The species is endemic to Cape Verde. The specific name refers to Joseph Dalton Hooker. The species was named by Joseph Decaisne, as Sarcostemma daltonii, in 1849. Its local name is gestiba. The plant is used in traditional medicine to relieve and treat dental problems.
Cynanchum acidum is a species of flowering plant in the family Apocynaceae, typically found in the arid parts of peninsular India where it is used in religious sacrifices. The plant is religiously linked to Hinduism and is believed to be a major ingredient of the Soma in Ancient India.
Dyerophytum socotranum is a small shrub growing up to 2m tall, rather glaucous and covered in white mealy powder. It has yellow flowers.
