Woody vine to 4m with angular puberulous branches. Pinnate or 2-3 ternate leaves, papery leaflets to 60mm x 25mm, puberulous above, silvery-felted beneath. Axillary cymes with 4-7 flowers & bracts 6mm x 2mm, flowers to 32mm diameter, 4 white sepals to 15mm x 6mm, puberulous outside glabrous inside. Puberulous achenes to 5mm x 2.5mm with persistent styles to 30mm.