Climbing shrubs or woody climbers. Stem
cylindrical, usually solid and thickened at the nodes. Tendrils branched or
biforked. Leaves simple or imparipinately compound, cordate, ovate, crenate,
sometimes lobed, exstipulate. Inflorescence corymbose cymes, shorter than the
leaves, peduncled. Flowers hermaphrodite, 5-merous. Calyx cupular. Corolla
lobes free at apex. Stamens five, free. Disc cupular, adnate to the base of
ovary. Ovary bi-locular. Fruits small, globose, usually 3-4 seeded.