Perennial herbaceous climber to 10m with adventitious roots. Dentate hairy leaves to 85mm x 85mm. Few-flowered axillary cymes, bract to 9mm x 6mm, orange-yellow flowers 20mm diameter, terminal male flowers with 2 tepals. Female flower with 2 tepals. Infructescence to 150mm long, brown 3-winged fruit to 35mm long with largest wing to 22mm wide.