Erect shrub, 0.3-1.5 m high. Branches usually straight and spreading, pale yellow, shortly sericeous when young, often with terminal, naked, pungent thorns. Leaves green, slightly short-sericeous. Leaflets flat, linear-oblanceolate, 1-7 mm long, acute, apiculate or acuminate. Inflorescences terminal racemes on branches, 1-10-flowered, axis often exerted as a thorn. Flowers with pedicels glabrous, often relatively long. Calyx ± puberulous; lobes triangular-subulate, acute to acuminate. Petals light yellow, standard and keel often partly rose-coloured. Pod widely lanceolate, hard, slightly inflated, grey to rose-coloured.
Erect, branched shrub, 0.25-1.5 m tall, often with thorny branch tips. Leaves 3-foliate, leaflets ± linear, slightly to distinctly flat, subglabrous to silky, tips apiculate to acuminate. Flowers up to 10, often on thorny axis, pale yellow, standard and keel partly rose-coloured, calyx pubescent, with short deltoid teeth, standard partly silky on back. Pod broadly lanceolate.