Shrubs. Stipules minute, subulate, caducous. Leaves alternate. Inflorescences axillary and terminal cymose fascicles or flowers solitary and axillary. Sepals 5, lanceolate, persistent, margin entire, apex acuminate. Petals 4 or 5, yellow, much longer than sepals, confluent, fugacious. Stamens 5, hypogynous, basally connate; staminodes 5, alternating with and inserted between stamens; glands 2-5, adnate to staminal ring. Ovary 3(or 4)-celled, cells 2-loculed by intrusion of a false septum, with 1 ovule per locule; styles 3(or 4), filiform, distinct or basally connate; stigmas subcapitate. Capsule splitting into 6(-8) 1-seeded mericarps. Seeds with a membranous wing.

One species: E, S, and SE Asia.