Glabrous herbaceous vine with leaves to 50mm x 120mm glabrous above & puberulous beneath with 2 lobes 70mm x 40mm, tendrils to 60mm long, inflorescence to 8 flowers, yellow-green flowers to 20mm diameter, filaments in 2 series, outer 4mm, green at base, yellow at tips, inner to 1.5mm green at base, yellow at tips, blue berry to 12mm diameter