A dwarf glab. rhizomatous shrub forming lax to compact patches up to ± 6 cm. tall. Branchlets compressed, up to 25 × 1-1·5 mm., tapering towards blunt apex, finely striate. Infl. of solitary fl. or occ. paired fls, (6)-8-(10) × (4)-6 mm., on very slender, minutely bracted, sts sparsely hairy peduncles. Calyx c. 3 × 2 mm., campanulate, with short triangular, acute teeth; standard rounded, purplish towards base, whitish towards apex, purple-veined; wings < keel, whitish, purple-veined, auricles pointed; keel purple, auricles pointed. Ovary glab. Pods elliptic-oblong, ± 10 × 4 mm., subcompressed, very dark brown to black; beak slender, subulate, straight, c. 2 mm. long. Seeds 4-6, reniform, bluish black to black.