"Lophospermum" species are herbaceous perennial climbers with fibrous roots. They climb by means of twining leaf stalks (petioles) rather than tendrils or twining stems. The long stems are branched, becoming woody at the base with age. In some species the stems grow from a woody caudex – a swollen, bulb-like structure at the base of the stem. The leaves are triangular or heart-shaped with a pointed apex and toothed edges (crenate or dentate). Both stems and leaves may have a purplish colour.