An ascending shrub, 0.25-0.6 m tall, sparingly branched, with tail-like, densely leafy An ascending shrub, 0.25-0.6 m tall, sparingly branched, with tail-like, densely leafy branches, densely short-villous, and with sometimes very prominent, villous, semi-globose leaf base tubercles. Long-shoot leaves with axillary short-shoots on the lower but not on the uppermost parts of branches. Leaflets linear, 5-11 x 0.8-1.5 mm long, flattened, with thickened margins and with a deep groove on the lower, and more shallow groove on the upper side; incurved or S-curved, carnose, glabrous, acuminate to mucronulate. Inflorescences 1-3-flowered, on lateral short-shoots, dispersed several to numerous along the branches. Bract situated on the pedicel 0.3-1 mm from its base, linear or subulate, only 0.3-1 x 0.2 mm. Pedicel rather long, 2.5-4.5 mm long, short-sericeous. Bracteoles 0.2-0.4 mm long. Calyx campanulate, glabrous; lobes deltoid-triangular, 0.4-1(-1.2) mm long, acute. Petals yellow or standard with reddish shades. Standard blade (5.2-)6-7 x 4.8-6.2 mm, glabrous except on sides of the base of the back and on the base of the front; sides incurved; apex acute. Wing blades 4-5 x 1.7-2.3 mm, firm, glabrous, with ±4 rows of minute folds in a depression on the upper side. Keel blades 4.2-5.3 x 2.2-2.6 mm, glabrous, with slightly concave upper margin and prominent basal pouch. Pistil pubescent on upper parts of ovary and upper side of style base; ovules 2. Pod triangular-lanceolate, 7.4-9.3 x 3.2-4 mm, smooth, ± compressed, pubescent only on the upper margin.
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Shrublet to 60 cm with erect, tail-like branches, sometimes with very prominent leaf base tubercles. Leaves 3-foliolate, leaflets linear, flattened with thick margins, deeply grooved above, incurved, glabrous. Flowers 1-3 on short shoots, scattered, yellow, standard with reddish shades, wings and keel glabrous, calyx glabrous, lobes triangular, very short.