climbing shrubs, stems branched, rooting at nodes. Leaves entire, ovate,
oblong-lanceolate, acuminate, pinnately nerved, petiole sheathing, geniculate,
sheath usually broad. Inflorescence solitary. Peduncle shorter than petiole.
Spathe cymbiform, caducous to deciduous. Spadix sessile, shorter than spathe,
dense-flowered. Flowers bisexual, naked, perigone absent. Stamens 4, filaments
widish, flattened, thickened at tips, anther-cells oblong, dehiscence by
lateral slits. Ovary prismatic or obpyramidal, 1-locular, ovule solitary,
anatropous, placentaion basal, stylar region well-developed, stigma sessile,
disciform to linear. Fruits obpyramidal berries. Seeds sub-reniform.