High-climbing vine with tuberous roots. Glabrous or sparsely pubescent leaves to 170mm x 150mm. Solitrary axillary flowers to 40mm long, trumpet-shaped & 3-lobed, tube to 15mm x 5mm, lobes to 2.5mm long, utricle to 9mm x 5.5mm, flowers creamy white tinged pinkish with maroon veins & bright sulphur-yellow throat. 6-ribbed orange capsules to 25mm x 10mm.