"Small herbs, stem much reduced. Leaves absent. Flowers regular, on long terminal peduncle, 1-3 together; calyx tube 3-winged, 1 cm long, retuse at apex, bright pink; petals absent; stamens 3, anthers sessile, ovate, erect; ovary inferior, 3-celled, winged, ovules many, style 3-lobed. Fruit a dehiscent winged capsule; seeds numerous, minute, reticulate."