Herbs perennial. Stems erect or ascending. Leaves ovate to obovate-spatulate; stipules absent. Inflorescence a leafy dichasium; bracts immediately subtending calyx absent. Sepals 5. Petals 5, white, deeply bifid. Stamens 10. Ovary 1-loculed; ovules numerous; styles 5, opposite sepals, attached to deciduous disc. Capsule shortly cylindric, dehiscing with 10 apical teeth. Seeds numerous, reniform, tuberculate; embryo curved.

* One species.

(Authors: Lu Dequan; Richard K. Rabeler)