Woody climbers, often becoming arborescent at maturity, the scandent stage with numerous aerial rootlets. Lvs alternate, petiolate, simple, palmately lobed or not lobed, exstipulate; lf form usually differing between flowering and non-flowering shoots. Umbels solitary or in terminal racemes; bracts minute or 0; calyx entire or 5-toothed; petals 5, greenish; stamens 5; ovary 5-locular; styles connate into a cone with stigmas sessile at apex. Fr. subglobose, berry-like.
Sep 5, very short; pet 5, fleshy, green; stamens 5; ovary usually 5-locular; style 1; fr a berry-like drupe with 2–5 pyrenes; unarmed, woody vine, climbing by numerous adventitious roots, with firm, evergreen, simple lvs and small fls in solitary or racemosely arranged umbels. 15, mainly Eurasia.