Unarmed trees. Leaves paripinnate; stipules intrapetiolar, connate into a scale (at least on mature shoots); leaflets opposite or subopposite, in (1)2-5 pairs, petiolulate, equal or +/- unequal-sided at base, with or without translucent dots. Flowers in racemes or panicles of racemes; bracteoles 2, well-developed, valvate, completely enclosing flower buds, persistent. Hypanthium tubular, 7-20 mm long. Sepals 5, subequal. Petals 5: upper one relatively very large and long-clawed, 4 others much reduced. Stamens 10; filaments exserted, 9 of them shortly connate at base, the other one free. Ovary shortly stipitate, arising on tube of hypanthium; ovules 2-8. Pod dehiscing elastically into 2 flattened woody valves which are obliquely transversely nerved when mature; upper suture narrowly winged on each side. Seeds compressed, +/- obovate-elliptic to elliptic or quadrate, with thin testa and short funicle.
Species 15, trop. Africa; sthn trop. 11, Angola, Zambia, Mozambique.