Fragrant herbaceous twining vine with striate 6-angular stems becoming glabrescent. Dentate leaves to 80mm x 80mm scabrous on upper surface of leaf, dull beaneath. Terminal & axillary cymes or panicles to 60mm long with bracts, flower heads to 5mm x 3mm, fragrant white or pink flowers, corolla to 7mm long. Glabrous achenes with 5 longitudinal ribs to 5mm long.