Climbers with copious white latex. Leaves opposite; petiole bases slightly clasping stems forming small intrapetiolar ocrea and connected across the stem forming an interpetiolar ridge; blades with distinct or weakly visible punctae beneath. Inflorescence of axillary and/or terminal cymes; flowers 5-merous. Sepals usually slightly connate at base, not clasping base of corolla; without colleters inside. Corolla lobes sinistrorse, bud drumstick-shaped; mature corolla salverform; lobes falcate. Stamens free from the style head, completely included in the corolla tube, inserted around the middle or in lower half of corolla tube; filaments short and narrow; anthers ovate, base cordate, apex acute, fertile entire length. Disk absent. Ovary syncarpous, unilocular with 2 parietal placentas, glabrous; ovules numerous; style filiform, separated from the ovary by an articulation, style head unspecialised. Fruit a berry/capsule, fleshy when young; dehiscing into two parts when mature. Seeds with a corky aril; ovoid.
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