A genus of climbing or woody plants that have simple alternate leaves and a sheathing membrane that unites the stipules. The flowers are small, and white, pinkish, or green, and are held in a raceme or solitary. There are no petals, but the sepals are often enlarged. The fruit is a triangular nut and the seeds have a large endosperm. The plants are either dioecious or polygamous. There are 15 species. The genus occurs in Australia, New Zealand, and America. Several species are cultivated as ornamentals.
Subjects: Plant Sciences and Forestry.