Erect fastigiately much-branched shrub up to c. 1 m. tall; ultimate branchlets ∞, wiry, terete, 1-2 mm. diam., striate, glab. Infl. us. of 1 raceme per notch; racemes (3)-5-(10)-fld, us. compact, on glab. peduncles up to 10 mm. long. Fls c. 5 × 5 mm., on glab. pedicels up to 4 mm. long. Calyx ± 2 × 2 mm., glab.; teeth acute. Standard dark purple near base, purple-veined and-flushed above; keel whitish, auricles bluntly pointed; wings white, purple-veined, auricles rounded. Ovary glab. Pods obliquely obovate-oblong, ± turgid, breadth > depth, 4-5 × 3 mm., stramineous (to brown, rarely black); valves reticulate; beak subulate, ± 1 mm. long. Seeds 1-2, yellowish, mottled with dark brown or black.
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