Trees or shrubs. Stipules wanting. Leaves alternate, paripinnate; leaflets alternate, entire; distal leaflet rudimentary. Inflorescences distal or axillary thyrses. Flowers actinomorphic, bisexual or functionally unisexual; sepals 5, equal, free, imbricate; petals 5, with an adnate appendage forming a pocket, for most of its length, the whole structure with 2 short marginal projections; disc pentagonal, sericeous, 7-8-lobed; stamens 8, of equal length; pollen syncolporate or parasyncolporate, rugulate; ovary 3-carpellate, hirsute, with a single ovule per carpel. Fruit a trilocular, trilobed capsule.