Description
Key Characters:
Growth Form:
Erect to scandent shrubs, lianas, or small to medium-sized trees.
Stems:
Stems sometimes swollen or with tuberous underground parts.
Roots:
Leaves:
Leaves simple.
Alternate, opposite, or whorled.
Petiolate.
Stipules small, usually deciduous.
Flowers:
Flowers in axillary or in racemose, paniculate, or involucrate inflorescences.
Flowers bisexual (perfect) or unisexual (and the plants gynodioecious or dioecious), actinomorphic, 4-merous.
Calyx of (2–)4–5(–7) sepals; sepals usually petaloid, valvate.
Petals convolute or spreading at anthesis, sometimes absent.
Stamens 8, in two series; anthers basifixed, dithecal, opening by longitudinal slits.
Pollen shed singly.
Ovary inferior, as many cells and carpels as sepals; ovules anatropous; style 1; stigma capitate, globose, or clavate, 4-lobed to subentire.
Fruit:
Berries.
Seeds 6 to numerous per fruit; small; obovoid to ellipsoid or subglobose; endosperm absent.
Ploidy:
Habitat:
Elevation Range: