Perennial tendril vine with unpleasant smell, bifid tendrils. Lobed leaves to 100mm x 140mm with 3-5 lobes. Male flowers in 9-25 flowered racemes to 250mm long, flowers to 14mm x 2.5mm, sepals to 2mm x 1mm, yellowpetals to 9mm x 7mm. Solitary female flowers, sepals to 1.5mm, corolla similar to male.