An erect, very sparingly (or almost not) branched shrub, ± rod-like, 1.2-2.5 m tall, with rather robust, rigid stem, densely beset with leafy short-shoots; young branches short-and white-woolly. Leaflets subulate, needle-like, 5-12 mm long, ±0.6 mm thick, straight, rigid, sharply mucronate or spine-tipped, green, glabrous, subterete or angular. Inflorescences unifloral, scattered on long parts of the branch(es). Bract oblong-subulate, 1.5-2.2 x 0.5-0.6 mm, mucronate, ciliate. Pedicel 1.5-2.2 mm, velutinous. Bracteoles 1-2.2 x 0.3 mm. Calyx tube campanulate, 5.5-6 mm, shortly and densely silky velutinous; lobes ovate-triangular, rather broad, velutinous, 2.5-5 mm long including an apical mucro. Petals bright yellow, with rather long claws. Standard blade 11.2-13(-14.5) x 12.5-16 mm, short sericeous on the back (marginally glabrous) and with some apical marginal pubescence on the front; with indistinct apical tip. Wing blades 9.5-11.5 x 5.5-6.5 mm, glabrous, widened and rounded apically. Keel blades rather rostrate, 7-10 x 4.5-5 mm, obtuse (but somewhat tapering), glabrous. Pistil short-sericeous on ovary and style base; ovules 2. Pod broadly and obliquely lanceolate, 12.5-14.5 x 4.5-5.2 mm, sericeous or partly tomentose.
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Erect, sparsely branched, densely leafy shrub to 2.5 m, with rod-like branches. Leaves 3-foliolate, leaflets terete, needle-like, rigid, straight, spine-tipped. Flowers solitary, scattered along branches, yellow, wings glabrous, keel somewhat rostrate, glabrous, calyx shortly velvety, lobes ovate-triangular, short and blunt.
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