Shrubs. Stems terete, pubescent. Leaves petiolate; leaf blade pubescent, secondary veins 2 on each side of midvein, tertiary veins numerous and parallel, margin entire. Inflorescences terminal, spicate; bract absent. Flowers small, 4-merous, sessile, solitary or in clusters of 3-5. Hypanthium campanulate, 8-ribbed, pubescent. Calyx lobes triangular to obtusely triangular, very small, equal. Petals obovate to broadly obovate, very shortly unguiculate, base, slightly oblique, apex obtuse. Stamens equal in length, twice as many as perianth, not appendaged at base; anthers lanceolate, equal in length; connective slightly inflated, not spurred. Ovary ovoid, 4-celled. Style filiform; stigma single, Capsule ovoid-globular, conspicuously longitudinally 8-ribbed, pubescent, apex with a ring of setose trichomes. Seeds numerous, small, cuneate.

● One species: S China.