An extensive climber. Leaves ovate to lanceolate, entire, membranous with longpetioles. Flower in scorpioid cymes, purple or violet. Fruits ellipsoid, compressed, redor black. (India) A shrub up to 3m tall; leaves elliptical to ovate-elliptical, 10-17.5cm x 4-7.5cm,petiole 0.5-1cm long; flowers in dense head-line clusters. (Indonesia) Perennial climbing plant. Leaves opposite, margins entire, purple beneath.Inflorescence in axillary cyme; nowers small, white with pale-violet spots. Fruit sub-ovoid, slightly compressed, glabrous. The whole plant is covered with pubescence : it has a fetid smell when crushed. (Vietnam)