Perennial herb, with stem twining, glabrous, branched, sparsely leafy, up to 0.6 m long. Leaves 3-5-lobed, lower leaves up to 50 x 50 mm; lobes ovate, subacute, middle lobe up to 25 x 25 mm, lateral lobes up to 11 x 11 mm, margins crenulate, rarely distinctly dentate, glabrous; petioles 4-20 mm long. Flowers solitary in axils of ovate-lanceolate bracts with a conspicuous basal tooth on both sides. Corolla white with purple stripes, 12-15 mm long, glabrous outside becoming slightly hairy towards base, 2-lipped, outer lobes lanceolate. Stamens 6.5-8.0 mm long; filaments pubescent; anthers hairy on back.
Twining, tuberous geophyte. Leaves ovate to sagittate, often 3-lobed below, toothed. Flowers in upper axils, bilabiate, laterally slit, white to mauve, with purple markings inside, 12-15 mm long, stamens 7-8 mm long, all anthers bearded.
A herb.