An (erect-) ascending or decumbent to prostrate shrublet with spreading branches up to 0.5(-1) m long, slender or weak to strong and rigid. Young branches ferruginous, glabrous, subterete or ± compressed. Leaves flat, simple (unifoliolate), linear-lanceolate (ovate), 10-20(-32) x 1.2-5.5(-8) mm, rigid, hard, sharply spine-tipped, glabrous, (yellowish-) green to glaucous, with 3-9 prominent longitudinal veins (beside marginal ones). Inflorescence unifloral or a sparse raceme with up to 6 flowers on a glabrous inflorescence axis which is the continuation of a ± peduncle-like internode 3-35 mm long. Bract subulate-acicular, (0.6-)3.5-6.5 x 0.3-0.9 mm, rigid, ± spine-like, glabrous. Pedicel 1.2-2.5(-3) mm long, glabrous. Bracteoles 1-5.5 x (-6.5) mm long. Calyx tube infundibular-campanulate, glabrous; lobes triangular-subulate, 1.4-3.5(-4.5) mm long, sharply spine-tipped, glabrous. Petals light or bright yellow. Stand-ard blade broadly obovate or almost circular, 6.2-7.5(-8) x 6-8.5 mm, rounded to retuse (often with a short 'tip'), short-sericeous on the back. Wing blades narrowly ovate-elliptic, 5-6.5(-7) x 2.4-3.5 mm. Keel blades 4.5-6 x 2.5-3.5 mm, apically slightly upcurved, with concave upper margin. Pistil glabrous; ovary elongate, with 6-10 ovules; style upcurved. Pod lanceolate or linear, 18-27 x 3.5-4.5 mm, glabrous, smooth.
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Ascending or sprawling shrublet with branches 50-100 cm. Leaves 1-foliolate, lanceolate, pungent, 3-9-veined from base, glabrous. Flowers solitary or up to 6 in sparse raceme on a distinct peduncle, pale or bright yellow, wing, keel and calyx glabrous, lobes triangular.
A small shrub. It can lie along the ground and has spreading branches. These can be 1 m long. Young branches have rusty hairs. The leaves are flat and simple. They are 10-20 mm long by 1-5 mm wide and have a spine at the tip.
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