Shrubs or small trees. Leaves opposite, 2-pinnately compound; rachis narrowly winged; leaflets subsessile, white scaly pubescent adaxially, sparsely glandular abaxially. Inflorescences paniculate, many flowered. Calyx campanulate, 5-lobed. Corolla tube tubular; lobes 5, semirounded. Stamens 4, didynamous. Disc cupular. Ovary 2-locular; ovules borne on septum. Capsule dehiscing loculicidally, terete; septum membranous. Seeds compressed globose, thick, nearly wingless.

One species: China, India, Laos, Myanmar, Nepal, Sri Lanka, Thailand, Vietnam.