Tall shrub to small tree 3-10 m high or sometimes taller; bark smooth to deeply fissured, brown or dark grey to blackish; branchlets angled with winged ridges which are decurrent with the petioles, glabrous or sparsely hairy with minute appressed hairs. Leaves with petiole 0.7-2.8 cm long, 1 gland at base of or to c. 7 mm below lowest pair of pinnae; rachis 2-12 cm long, glabrous or sparsely appressed-hairy, jugary glands present, interjugary glands absent; pinnae 3-13 pairs, mostly 4-7 cm long (range: 2.5-9 cm long); pinnules 15-45 pairs, linear, mostly 5-15 mm long and 0.4-0.8 mm wide, glabrous or rarely sparsely appressed-ciliate. Inflorescences in axillary and terminal panicles and/or racemes; peduncles 2-5 mm long, glabrous or hairy; heads globose, 20-32-flowered, 4-7 mm diam., yellow to bright yellow. Pods straight to slightly curved, +/- flat, straight-sided to irregularly and mostly slightly constricted between seeds, 2-10.5 cm long, 5-8.5 mm wide, thinly leathery, +/- glabrous; seeds longitudinal; funicle filiform or expanded towards seed.

Astringent (bark)

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(+)- Catechin, acetic acid, beta-carotene, gallic acid, lignin, pelargonidin, phloroglucinol, protocatechuic acid, rutin (plant)

In diarrhoea