Leaf-lamina 4·5–11·3 × 3·5–11·8 cm., broadly ovate, deeply cordate, narrowly decurrent on to petiole, minutely apiculate-denticulate, unlobed or obscurely 3-lobed, shortly acuminate, acute, apiculate, finely pubescent on veins and minutely punctate beneath, minutely hispidulous above.
Stems scandent, very shortly and finely pubescent, becoming woody with grey sulcate bark.
Petiole 1·9–3 cm. long, finely pubescent.
Fruit ovoid-rostrate, winged, velutinous.
Tendrils simple or 2-fid.
Female flowers unknown.
Flowers dioecious.
Seeds unknown.