Shrub with densely divaricating branches, up to c. 3 m. tall; branchlets setose. Lvs of juveniles 3-foliolate; petioles winged, up to c. 2 cm. long; lflts articulate at base of lamina. Lvs of adults unifoliolate, often a few trifoliolate lvs present; petiole c. 5 mm. long, lamina c. 1-2 × 1-1·5 cm., obovate-oblong to suborbicular, subcoriac., crenate to sinuate, crenatures often mucronate. Umbels simple, axillary, 2-10-fld, on short peduncles; fls minute, greenish; calyx minutely 5-toothed. Ovary 2-loculed, 2-ovuled, style-branches 2, finally recurved. Fr. c. 4-5 mm. diam., compressed.