A tree to 20 m. tall with grey or whitish bark and often with a large spreading crown, or a large spreading shrub (fide Gardner).. Leaves up to 40–60 cm. long, often less, almost always imparipinnate, with no clear-cut differentiation between juvenile sapling leaves and leaves from mature branches, glabrous; leaflets 4–5 pairs, coriaceous, narrowly ovate to obovate, up to 12 cm. long by 5.5 cm. wide, commonly only about half these dimensions, obtuse to minutely retuse, occasionally acute or with a broad rounded apiculum, broadly cuneate to attenuate at base, entire to repand and narrowly inrolled at the margin; petiolules of lateral leaflets 4(–8) mm. long.. Inflorescence-branches glabrous (occasionally somewhat tuberculate); pedicels umbellulately borne (occasionally flowers borne singly); other orders of branching may be umbellate or racemose.. Petals dark reddish-brown to purple-black.. Styles 5, persistent.. Fruits urceolate, 7–9 mm. long, terete, deeply 5-sulcate when mature, glabrous.
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