shrub��rigid,��spreading,��to c. 1m�long,��to c. 1 cm�wide,�.stems��glabrous,�.leaves�soon�deciduous� (particularly on older plants). �,�+/-�oblong,��(4-)6-10(-15) mm�long,��2-3 mm�wide,�.stipules��dark reddish-brown,��c. 1 mm�long,�often�shallowly joined around the node,�.spines��stout,��1.5-4 cm�long,�.
shrub��slender,��to 5 m,�.stems��glabrous,�.leaves�rarely�deciduous,��elliptic,��(8-)10-20(-30) mm�long,��3-7 mm�wide,��glabrous,��shining,�.spines��not developed at each node,��to c. 1 cm�long,�.