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Leaflets 3, elliptic, ovate, rhombic or almost round, the laterals oblique, 1.5–8 × 1–7.2 cm, rounded, acute or markedly acuminate at the apex, rounded to cuneate at the base, finely scaly pubescent on the nerves to softly pubescent on both surfaces, densely covered with small orange or black glands beneath; petiole 2–7 cm long; rhachis 3–13 mm long; petiolules 1–2.5 mm; stipules 4–7 × 1–4.5 mm, ovate to lanceolate, pubescent and glandular.
Calyx pubescent or pilose and glandular punctate; tube c. 1.5–2 mm long; lobes 0.5–1.7 cm long, linear or linear-lanceolate, the lowest broader than the laterals, the upper 2 joined at the base or for ± half their length.
Inflorescences axillary, sometimes branched, dense, subsessile, oblong; rhachis 2–12.5 cm long; peduncle 0.5–1 cm long; pedicels 1.5–3 mm long; bracts 4–16 × 1–5 mm, lanceolate, tapering acute, pilose or pubescent.
Pods turning dark, 10–14 × 4.5–5 mm, elliptic-oblong or oblong, apiculate, covered with short hairs or dense short tomentum, sparser long hairs and orange-red glands.
Corolla persistent; standard yellow with purple veining, drying orange-brown, 7–14 × 4.5–9 mm, elliptic to oblong, glabrous; wings yellow; keel greenish.
Seeds reddish-brown with black mottling or almost entirely black, 3.5 × 2–3 × 1.5 mm, oblong-reniform, compressed.
Stems mostly slender, ridged, shortly pubescent to densely grey hairy and glandular.
Climbing, procumbent or ascending perennial herb 0.3–3 m long.
Petals greenish-yellow striped red
Leaves dull green
Slender twiner
