Habit very variable; shrub 4–5 m. or tree 5–16(–24) m. tall and 1.3 m. diameter at breast height or scandent shrub to genuine liane; bark yellowish or brown, gnarled, flaking and longitudinally fissured or striated; underbark bright yellow with red streaks; stems grey, ± glabrescent.. Leaves with pungent odour, 3–5-foliolate; leaflets sessile, oblong-lanceolate to lanceolate, 3–13 cm. long, 1–6.5 cm. wide, long-acuminate at the apex, cuneate at the base, entire, ± glabrous but gland-dotted above and beneath; petiole winged or unwinged, 1.5–9 cm. long, 0.2–1 cm. wide.. Panicles terminal and axillary combined and lower axillary ones also sometimes present, extensive, ± 15 cm. long, 6–15 cm. wide; peduncles 3–7 cm. long; pedicels obsolete or very short, axes densely adpressed pubescent; bracts linear, 1 cm. long; bracteoles narrowly triangular, 1 mm. long.. Calyx 1–1.5 mm. long, ribbed, adpressed pubescent and glandular, shallowly toothed.. Corolla white, bluish purple or mauve, adpressed pubescent outside; tube 3–4 mm. long, densely pubescent and glandular, limb 7 mm. wide, the small lobes 2.5 mm. long and wide and larger lip 3–5 mm. long, 3–3.5 mm. wide.. Fruit orange to black, globose, 8–10 mm. diameter, juicy, the juice dark blue; calycine cup plate-like, 4–5.5 mm. wide.
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A tree. It grows 16 m high. The trunk is crooked and branched. The bark is yellow-brown. There are cracks along it. The leaves are 3-5 leaflets arranged like fingers on a hand. The leaf stalk are 2-9 cm long. It can have wings. The leaf blade is 3-13 cm long by 1-7 cm wide. They are sword shaped and wedge shaped at the base. The leaves have gland dots above. The flowers are blue to purple. They have scent. They are in hairy groups. They can be at the ends of branches or in the axils of leaves. The fruit are round and blue to purple. They are about 1 cm across. The juice is dark blue.