A glabrous, much-branched deciduous shrub with 4-gonous lateral branches oftenending in spines. Leaves simple, opposite, entire, lanceolate. Flowers white, or rose-coloured, fragrant, in large terminal pyramidal panicled cymes. Capsules globose,tipped with the style and supported by the persistent calyx. Seeds numerous, smooth,pyramidal. (India) Small tree, 1.5-4m heigh, with thorny twings lamina 1-2.5cm long flower cream-white (Indonesia)