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Herb with prostrate or decumbent stems 15–30 cm long from a perennial stock, the roots tuberous near attachment with stem; tubers 2–7 × 0.4–1.5 cm, linear to fusiform, some ± horizontal; stems ridged, densely pubescent with hairs under 1 mm long.
Inflorescences axillary, the flowering part 1–4 × 1.5–2 cm, (2)10–15-flowered; peduncle 3–15 cm long, densely pubescent; pedicels 1.5 mm long, strongly deflexed; bracts 4–7 × 1.2 mm, lanceolate with long linear tips, ± persistent.
Calyx pubescent; tube 1.5–2.5 mm long; lobes 2.5–4(6) mm long, triangular-lanceolate, the lowest narrow; standard yellow or orange-yellow, marked brown outside, 9–11 × 7 mm, obovate, densely pubescent.
Pods 15–9 mm, oblong, apiculate, covered with long white or pale ferruginous hairs.
