Extensively scandent, armed shrub; branches and rachis dotted with fine, grey pubescence; main rachis with sharp hooked, scattered prickles; petiole with a large gland near the base and other between upper 1 or 2 pairs of pinnae; stipules ovate, cordate; leaves bippinate, pinnae 6-8 pairs, pinnules subsessile, 15-25 pairs, linear, membranous, pale green above, glaucous beneath, subglabrous; flowers in globose heads on fascicled peduncles in terminal panicles; bract conspicuous, oblique, membranous, subpersistent; calyx funnel-shaped; corolla creamy white with red tinge, little exerted; stamens many, free, much exerted; ovary pubescent, style slender; pods about 7-10 cm, shortly stalked, 6-10 seeded, straight, thick, succulent, shriveled when dry, sutures broad, slightly constricted between the seeds, flattened, brown.