Xerosicyos is a flowering plant genus of the family Cucurbitaceae. Its name comes from Greek xeros (meaning "dry") and sicyos ("cucumber"). There are six species, all endemic to Madagascar.
Species Six species are accepted. Xerosicyos danguyi is a large liana with thick stems and round, gray succulent leaves. It is common in cultivation and often called the "silver dollar" vine. Xerosicyos decaryi Xerosicyos hirtellus Xerosicyos perrieri is also a liana with thinner stems and smaller, ovate green succulent leaves. Xerosicyos pubescens is entirely different from the previous species. It forms a large caudex from which deciduous vines emerge. The leaves are lobed and semi-succulent and die back in the dry season and during prolonged periods of drought. Xerosicyos tripartitus
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