Stephania tetrandra

Botryodiscia is a genus of flowering plants in the family Menispermaceae. It includes a single species, Botryodiscia tetrandra, is a herbaceous perennial vine or scrambling subshrub native to southern China, Hainan, Taiwan, and Vietnam. It grows from a short, woody caudex, climbing to a height of around three meters. The leaves are arranged spirally on the stem, and are peltate, i.e. with the leaf petiole attached near the centre of the leaf. Its root is used in traditional Chinese medicine (TCM). The species was first described as Stephania tetrandra by Spencer Le Marchant Moore in 1875. In 2024 Lian Lian and Wei Wang placed it in the newly described monotypic genus Botryodiscia as Botryodiscia tetrandra.