Male flowers with 9–18 sepals, all densely pubescent outside, the outer ones bract-like, the inner ones suborbicular and somewhat united; petals 6, very small or absent, glabrous and somewhat fleshy; stamens 3–6, free; anther-thecae with obliquely longitudinal dehiscence; gynoecium replaced by a tuft of rusty hairs.
Female flowers with sepals similar to those of the male, petals 3–6 or absent; staminodes reduced; carpels 6–40, pubescent, narrowed into a cylindrical style.
Drupelets obovoid, flattened, stipitate; exocarp usually velvety, sparsely puberulous; endocarp rugose and fibrous-hairy.
Male inflorescences of corymb-like cymules or of small, many-flowered panicles.
Leaves simple, lamina entire, rarely serrate.
Female inflorescences similar to the male.
Seeds without endosperm.
Robust, twining lianes.