Tree or shrub, 1.5-3.0 m high; much branched, armed; bark grey, granular, often covered with lichen, young growth covered with russet glands. Leaves fasciculate, crowded on dwarf outgrowths of older branches and spines; petioles winged, trifoliolate; leaflets sessile, coriaceous, glabrous, dull grey-green above, slightly paler below, elliptic to obovate, margins entire, revolute. Inflorescence furfuraceous panicles, fasciculate, males crowded. Flowers small, pale yellowish. Fruit a drupe, elliptic, ellipsoid, slightly asymmetric, glabrous, shiny, fleshy, dark reddish brown, drying black, pungent resinous juice makes it unpalatable.
Dioecious, evergreen, armed shrub to 2 m with leaves in clusters. Leaves trifoliolate, leaflets sessile, obovate, margins revolute. Flowers pale yellow. Drupes ellipsoid, shiny, juice pungent.