Robust shrub with stout main stem arising from stout taproot up to c. 2 cm. diam. Branches sprawling, up to 6 dm. long. Branchlets compressed, plano-convex, (2)-4-5 mm. wide, deeply grooved, at first ± pilose, rounded at apex. Lvs of young plants 1-3-foliolate, lflts c. 6 mm. long, obcordate-cuneate, pilose. Infl. of 1-3, 4-6-fld racemes on short pilose peduncles. Fls c. 6 × 5 mm.; calyx c. 2 × 1 mm., teeth triangular; standard white, purple-veined, with purple basal blotch; keel greenish, purple-veined, auricles rounded; wings whitish, with greenish basal blotch, auricles bluntly pointed. Ovary glab. Pods (10)-15 × 3-4 mm., obliquely narrow-oblong, dark brown to black; beak stout, curved, ± 1 mm. long. Seeds c. 6, pale yellowish, black-spotted, reniform.
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