Causonis clematidea, known as the native grape or slender grape, is a common Australian vine in the grape family.[1] Growing in or on the edges of tropical forest, from the Shoalhaven River gorges north to Queensland. Tendrils form opposite the leaf.
C. clematidea has compound leaves with a terminal leaflet. Usually five toothed leaflets. 1 to 8 cm long. 5 mm to 40 mm wide. Small greenish flowers occur in summer. The grape is shiny black, 5 to 7 mm in diameter.