Deciduous, unarmed, small tree or tall shrub; leaves bipinnate, long, ending in a soft bristle, pinnae 4-8 pairs, leaflets 10-15 pairs, linear, acute, membranous, sessile, caducous, glabrous above, glaucous beneath; heads globose, short peduncled, panicles, heads, solitary or 2 together; flowers creamy white, sessile, small, pentamerous, clustered in globose heads; calyx tubular, campanulate, shortly 5-toothed; petals-5, free, valvate, spathulate, creamy white; stamens 10, free, much exserted, filaments filiform, anthers minute, not gland crested; ovary stalked, many ovuled; style filiform; stigma minute, capitate; pods straight, flat, strap shaped, coriaceous, glabrous, dehiscent, dark brown; seeds many.