Unarmed perennial herb or suffrutex up to 1 m high; young stems ± angular owing to the prominent decurrent striations from the base of each petiole, subglabrous to sparingly puberulous. Leaves sparingly to densely puberulous: petiole 0,2-1,8 cm long, usually with a large flattened discoid or ellipsoid gland immediately below the Junction of the lowest pinna pair; rhachis 1-5,5 cm long; pinnae 3-5(7) opposite pairs, rhachillae 1-4 cm long; leaflets 9-20 pairs, 3-8 x 0 8-1 5 mm linear to linear-oblong, acute apically, glabrous throughout or with marginal cilia. Stipules setaceous, up to 5 mm long, linear, persistent. Flowers white to pale yellowish -white, in heads up to 0,8 cm in diameter; peduncles up to 5 cm long. Calyx campanulate, tube up to 2,5 mm long, lobes up to 1,5 mm long, glabrous. Petals free, up to 4 mm long, glabrous. Stamens 10, filaments free, linear, 5,5-7 mm long; anthers eglandular apically. Ovary subsessile, glabrous; style slightly thickened above. Pods dark brown, 4-8 cm lo