Isoberlinia Craib & Stapf

Unarmed trees. Leaves paripinnate; stipules intrapetiolar, connate, or free in their upper part; leaflets opposite or subopposite, in 2–5 pairs, petiolulate, ± unequal-sided at base, without translucent gland-dots. Inflorescence normally paniculate; branches racemose or paniculate; bracteoles 2, well-developed, valvate, completely enclosing the flower-buds, persistent. Hypanthium tubular, 2.5–8 mm. long. Sepals (4–)5(–7), subequal. Petals 5(–6); usually all well-developed, but the upper one always somewhat longer or wider than the others and often of a different shape. Stamens 10 (–14); filaments free, exserted. Ovary sessile to shortly stipitate, and inserted on the tube of the hypanthium; ovules 4–8. Pod dehiscing elastically or explosively into 2 flattened smooth or sometimes obliquely nerved woody valves; upper suture not at all winged. Seeds compressed, ± obovate-elliptic, with thin testa and short funicle.