Climber with glabrous slightly angular stems. Leaves to 70mm x 20mm, puberulent above, pubescent beneath. Axillary raceme of 2-6 flowers, flowers opposed by bract 6mm x 3mm, dark purple flowers with yellow throat, utricle to 9mm x 7mm, tube to 10mm x 2mm, 1-lipped limb to 15mm x 10mm. 6-valved fruit to 16mm x 8mm.