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Leaves pinnate with 4–8 pairs of leaflets; petiole 2.5–6 cm long, petiole and rachis together 4.5–12 cm long, glabrous or with sparse appressed hairs; leaflets 1.5–3(4) × 0.6–1.2(1.5) cm, elliptic or oblong to obovate, obtuse to emarginate at the apex, ± cuneate at the base, the upper surface glabrous, the lower surface appressed-pubescent; stipules large and conspicuous, persistent, 9–17 mm long from point of attachment to apex, (6)7–14 mm broad, strongly cordate at the base with auricles on both upper and lower sides, the apex acute, the whole glabrous, not or scarcely ciliate, often turning blackish on drying.
Shrub or dwarf shrub, 0.5-3.0 m high; stems ascending, glabrescent. Leaves pinnate, 5-or 6-jugate, 3-135 mm long. Leaflets obovate; mucro up to 2 mm long; upper surface glabrous; lower surface thinly appressedly pilose. Stipules cordate. Inflorescences terminal, few-flowered towards apex; peduncles 40-140 mm long. Flowers pink. Calyx pilose, lobes lanceolate. Petals: standard widely elliptic, pilose on outside. Style pubescent. Flowering time Sept.-Apr. Pod 35-50 x 6-8 mm, narrowly oblong, flat, glabrous.
Racemes with c.6 flowers, short, up to 2 cm long, usually terminal on the main and lateral branches; peduncles 3–8 cm long, about equalling the upper leaves, glabrous except just below the flowers; inflorescence axis brown appressed-pubescent; bracts large, c.10 × 6 mm, ovate-acuminate, acute at the apex, concave and closely enclosing the buds but falling at flowering, brown, glabrous.
Calyx 3–4.5 mm long, the campanulate part 1.5–2.5 mm, the two upper teeth joined for not more than half their length.
Pod 35–50 × 6–8 mm, glabrous; seeds 8–10, transversely elongate.
?Annual or perennial, 1–1.8 m high, ?woody below.
Petals 17–20 mm long, pink to violet.
Ovary glabrous; style pubescent.
Stems glabrous, ± smooth.
