In the subfamily Marsdenieae, the genus Hoya, named after Thomas Hoy, a gardener at Syon House in England in 1821, is one of the best known and wide spread Asclepiad families. The distribution range is from Asia, Pakistan, India, Bangladesh, Bhutan, Myanmar, Nepal, China to tropical South East Asia, Papua New Guinea, Australia, Japan and numerous Pacific Islands, with over 300 described species, about 7 of which grow in Australia. From fibrous roots the plants are epiphytic, rarely rooting in the ground, with stems that are rarely shrubby, more usually pendant or creeping, climbing and left twining, with white latex. The stems bear leathery succulent leaves and pseudo-umbellate flowers. The potting mix should contain added humus as compared to a normal succulent mix, and the plants prefer a humid atmosphere and should be kept watered all year round. As well as the described species there are numerous cultivars in circulation.