<unk>  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. In keeping with its wide distribution, the species is known by a range of common names, including caustic-creeper, caustic bush, sacred soma, soma, rou shan hu, Rapunzel plant, liane calle and kitupa.
Cynanchum viminale
Brachyspira pilosicoli
Cerbera odollam
Mitragyna speciosa
Mania errabunda
Craniopagus parasiticus
Arcanum joviale
Antihecticum poterii