A procumbent, prostrate or decumbent shrublet, from sparingly to very densely branched, sometimes matted, in the soil surface, with branches 0.2-0.7(-2) m long; young branches short-villous. Leaflets linear to subulate, occasionally subfiliform, 2-8(-12) mm long, 0.25-0.8 mm thick, terete, acute or acuminate to mucronulate, straight or ± incurved, glabrous, clear green to pale green or glaucous. Inflorescences terminal on branch-lets, with one, two or three (-five) flowers, on the tips of leafy, non-pedunculate branchlets. Flowers small or moderate in size. Bract linear, oblanceolate or subulate, 1.3 x 0.2-0.6 mm, acuminate, glabrous abaxially, ciliate. Pedicel very short (shorter than 0.5 mm). Bracteoles 1-3 x 0.2-0.5 mm. Calyx tube glabrous, with ± prominent, zig-zag veins; lobes linear (-lanceolate) or subulate, 2.5-6 mm long, carnose, acuminate or apiculate, glabrous, green (-glaucous), basally with prominent midvein, apically subterete. Petals glabrous, light or pale yellow, or partly to prevailingly red to purplish. Standard blade elliptic-ovate, (4.5-)5-8(-9.2) x 4-7(-7.8) mm; apex with a short, acute-acuminate tip up to 0.6 mm long; the sides ± incurved. Wing blades rounded-oblanceolate, (3.5-)4-7.5(-8.8) x 1.5-2.7(-3.3) mm, with 2-several rows of minute folds on basal parts. Keel blades strongly upcurved, lunate to broadly boomerang-shaped, 3.7-5.5 (-5.8) x 1.8-2.8(-3) mm, with S-curved upper margin. Pistil subsessile, glabrous or with some apical pubescence on the ovary; ovules 2. Pod triangular-ovate to triangular-lanceolate, smooth, glabrous, greenish grey or partly purplish.
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Sprawling or prostrate shrublet, sometimes mat-forming, with branches 0.2-2 m long. Leaves 3-foliolate, leaflets subterete, awl-shaped, straight or ± incurved, glabrous. Flowers 1-3(-5) at tips of branches, pale yellow, sometimes partly reddish to purplish, standard incurved on sides, wings glabrous, keel strongly upcurved, glabrous, calyx glabrous with zigzag veins, lobes linear to awl-shaped, glabrous.
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