Shrub 5.5 m tall.

Leaves opposite with a short petiole.

Tree, 4 m. Bark smooth, grey.

Leaves borne in clusters on small spurs, pendulous, mostly compound, very variable, ranging from a single leaflet, paripinnate with 2 or 4 pairs of leaflets, 3-foliolate, imparipinnate with two pairs of leaflets and a terminal. The petioles or rachis are bent, not straight, giving the leaves a somewhat weird look; leaves are not flat.

Leaflets: petiolule 1- 1.5 cm; lamina 4-7 × 1 cm, narrowly lanceolate to linear, grey-green above, silvery-grey beneath with fine appressed hairs; (young leaves much greener); base attenuate; apex acute; margin entire.

Tree, 12 m, the branches touching the ground. Bark rough, vertically fissured, with flat pieces peeling off from below. Branchlets brown-tomentose, without lenticels No stipules seen.

Upper surface of leaf.

Flowers borne in racemes. Calyx densely dark brown hairy with glandular hairs. Corolla white with a dark reddish-brown marking at the base of the standard.

Leaves with a swollen basal pulvinus, alternate, arranged in a plane. imparipinnate with 9-14 alternately arranged leaflets. Petiole 2-3.5 cm; rhachis 9-14 cm. Leaflets: petiolule 4-5 mm, swollen, brown-pubescent; lamina 5-8 × 3-4 cm, oblong, shiny and nearly glabrous above, sparsely brown-hairy beneath; base rounded; apex bluntly acuminate, often notched; margin entire, slightly undulate. Main vein prominent beneath; laterals fainter, curving round and not reaching the margin. Single minute brown-hairy stipels occur at the base of each petiolule; 2 stipels at the base of the terminal leaflet.

Pod 10 cm in diameter, including the wing; circular with seed borne in a central raised area 2.5 cm across. Wing brown-hairy; central portion with longer and larger brown hairs. Fruit stalk 6 cm, borne in a narrow sinus extending almost to the central area.

Upper surface of leaf.