Ceropegia woodii is a flowering plant in the dogbane family Apocynaceae, native to South Africa, Eswatini and Zimbabwe. It is sometimes treated as a subspecies of the related Ceropegia linearis, as C. linearis subsp. woodii. Common names include chain of hearts, collar of hearts, string of hearts, rosary vine, hearts-on-a-string, and sweetheart vine.
History
In 1881, the species was discovered hanging from rocks on Groenberg Mountain in Western Cape, South Africa, at an altitude of 1800 feet, by John Medley Wood, curator of the Durban Botanic Gardens. Thirteen years later, in 1894, he sent a living plant to the Royal Botanic Gardens, Kew in the United Kingdom. The plant that had been sent to Kew subsequently flowered, providing the material for Plate 7704 of Curtis's Botanical Magazine published in 1900. The prolific botanical artist Matilda Smith prepared the plate, while the Kew taxonomist, N. E. Brown, produced a detailed description, naming the plant after its discoverer. Its trailing habit, neat appearance, and tolerance of neglect, made it an ideal plant for hanging baskets.