Scandent shrub to 12 m, or sprawling, or a small spreading tree; young branchlets olive-green or pale-brown, later olive-brown, puberulous and glandular. Prickles deflexed, scattered, arising from brownish longitudinal bands darker than the intervening yellowish to grey ones. Leaves: petiole (1.5)2.6-6.5 cm long, with a gibbous gland 1-2 x 0.5-1 mm; pinnae 9-17 pairs, 3.5-7 cm long; glands on rhachis between the top 1-3 pairs; leaflets numerous, (0.8)1-2(2.5) mm wide, linear or linear-oblong, margins ciliolate with whitish appressed hairs; midrib nearer one margin at the base. Flowers white or palest yellow, in heads 8-12 mm in diam. in ± pyramidal panicles. Stipules at base of peduncles small, 0.3-1.2 mm wide, inconspicuous, soon caducous, not subcordate at the base. Calyx eglandular outside. Pods 9.5-19 x 1-2.9 cm, coriaceous or subcoriaceous, oblong, ± transversely plicate and umbonate over the seeds, margins not strongly thickened. Seeds blackish or dark-brown, 9-11 x 6.5-8 mm, smooth, elliptic; areole largish, 6-8 x 3-5 mm.
Home