Tree to 36 m high; trunk to 2 m diam.; crown often rounded. Bark pale to dark yellowish- or greyish-brown to blackish, corky when young, rough, often longitudinÂally fissured, sometimes with scattered persisÂtent prickles arising from swollen bases; young branchlets yellowish- or olive-brown to dark reddish-brown or purplish, glabrous or subglabrous to pubescent. Stipules not spinesc-ent, in pairs, 1-3,5 x 0,2-0,8 mm, soon deciduous. Prickles in pairs just below the nodes, recurved or almost straight, often broad-based, dark reddish-brown to black, up to 1,2 cm long, rarely absent. Leaves: petiole (0,6)1,4-3,6(4,8) cm long, adaxial gland usually present, variable in position, round or oval, 0,6-1,5 x 0,4-1 mm; rhachis (2,6)5,5-11(14,2) cm long, sub-glabrous to pubescent, abaxial surface someÂtimes with recurved prickles, with a gland at the junction of the top 1-6 pinnae pairs, occasionally at the junction of all or nearly all pinnae pairs or absent altogether; pinnae (4)7-14 pairs; rhachillae (2,5)3-6,5(9,2) cm long, glabrous