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Erect shrub or shrublet with spreading branches, to 1 m. Leaves 3-foliolate, leaflets terete or subterete, straight or S-curved, rigid, pungent, hairy to subglabrous. Flowers small, 3-10(-30) in terminal spike-like racemes, pale yellow, fading brownish or rose, wings and keel hairy, calyx large, hairy, lobes triangular, pungent, hairy.
Leaflets 3-10 mm long. Bract (0.7-)1.5-3 (-5.3) mm long. Bracteoles 0.5-2.5 mm long. Calyx lobes 1-2.7 mm long. Standard blade 3.2-4.2 x 2.8-4.1 mm; wing blades 2.3-3.3 x 1.2-2 mm; keel blades 2.5-3.3 x 1.5-2.2 mm. Pod 5-7 x 2.2-3 mm.
