Scandent herb to 1.5m. Leaves to 100mm x 34mm, serrate margins, with white feathered veins. Corymbs of up to 16 dark yellow flowers, red dots inside, calyx villous and yellowish-white, olive-green sepals, segments 5mm x 3mm, corolla upper lip 4mm x 5mm, inferior lip to 12mm x 7mm. Yellow-brown capsule 6mm long.