An erect or ascending shrub or shrublet, 0.3-0.6 m tall, fairly densely branched. Young branches with spreading, white woolly pubescence. Leaves trifoliolate; those on branch ends with short-shoots not yet developed. Leaflets flat, oblanceolate or linear, 10-20 x 2.5-4.5 mm, acute, soft and flexible, completely and densely covered with white, lanate pubescence; with 1-3 distinguishable veins. Inflorescence a terminal, 2-5-flowered head. Bract lanceolate, 8-10 x 2.5-3 mm, flat, weak, with long, tapering apex, densely white-hairy. Pedicel ±1-1.5 mm, white-hairy. Bracteoles similar to the bract, 6-8 x 1-2 mm. Calyx densely and completely white-woolly or silky; lobes linear, 10-13 x 2.5-3.2 mm, weak, acute. Petals light yellow. Standard blade orbicular, broader than long, 12-14 x 14-16 mm, rounded, densely white-tomentose(-sericeous) on the back. Wing blades oblong or narrowly obovate, ±9 x 4.5 mm, widened and rounded apically, white-hairy on the apical lower third or less; the base with 3-4 rows of minute folds. Keel blades lunate, 8-9 x ±5 mm, slightly upcurved, glabrous on most parts but apically white-puberulous. Pistil densely pubescent on ovary and basal half of the style; ovules 4. Pods not seen.
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Erect shrublet, 30-60 cm. Leaves 3-foliolate, leaflets linear-oblanceolate, flat, soft, white-woolly. Flowers few in terminal heads, pale yellow, wings and keel white hairy, calyx white-woolly, lobes linear, weak, large.