Woody climber. Stems velvety, milky sap present. Leaves opposite, oblong-elliptic to ovate, often with a sharp point at the apex, dark glossy green above, covered in greyish velvety hairs below, veining conspicuous. Flowers small, fleshy, in loose, branched inflorescences, creamy-white, often tinged reddish on the outside of the flowers; outer corona lobes long and filiform. Fruits in paired slender, pointed follicles, covered in velvety greyish hairs.