Perennial herbs, decumbent. Rhizomes woody, elongated, slightly curved, with scales. Leaves basal, spirally arranged, petiolate. Inflorescence a capitate raceme; peduncle nearly equaling leaves in length, elongating in fruit. Flowers pedicellate; bract 1 at base of pedicel; bracteoles 2 at middle of pedicel. Sepals persistent. Corolla caducous. Stamens inserted at corolla base; filaments pubescent at base; anthers 2-locular; staminodes short, ligulate, densely pubescent. Ovary and capsule 3-locular. Style glabrous; stigma disciform.

One species: China.