Perennial herbs with usually branched rootstock, stoloniferous.
Leaves rigid, distichous, linear, with often equitant base. Inflorescence of
cymose panicles, nodding. Flowers pedicellate, pedicels jointed at the top.
Perianth segments 6, distinct, spreading, marcescent. Stamens 6, hypogynous, or
the 3 inner on the bases of the segments, filaments much thickened, anthers
basifixed between the lobes, reflexed, opening by terminal pores or short
slits. Ovary 3-celled, style filiform, stigma minute, ovules 4-8 per cell.
Fruit berry, blue. Seeds few, ovoid or compressed.