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Leaves well spaced; leaflets lanceolate to broadly elliptic, subacute at the apex, subacute to obtuse at the base, sparsely appressed pubescent above and beneath; terminal leaflets 1.5–3 times as long as the petiole, 30–50 × 10–33 mm; petiole 10–20 mm long; stipules 5–14 × 1.5–3 mm, united along the leaf-opposed margin almost to the apices, caducous but persisting as a small ring c. 1 mm high.
Corolla yellow; standard 10–13 × 10–13 mm, obovate to subcircular, densely pubescent to tomentellous outside; wings as long as the standard, broad, without any folds between the veins; keel shorter than the wings, 7–9 mm long, the petals without any crest, ciliolate on the upper margin.
Inflorescence leaf-opposed, pedunculate, racemose, sometimes long and lax, sometimes short and dense, many-flowered; peduncle 3–8(15) cm long; bracts 3–7 mm long, linear to filiform, often caducous.
Stems and branches sparsely to densely subappressed greyish pubescent or pilose, sometimes with some spreading longer hairs interspersed, glabrescent.
Calyx 9–13 mm long, sericeous outside; upper lip 2-lobed to below the middle with the lobes oblong-lanceolate.
Seeds 8–12 per pod, c. 4 mm long, dark brown or blackish, smooth.
Pod 30–35 × 5–6 mm, oblong, densely silky pubescent.
Erect or scrambling subshrub 30–100 cm tall.
