Subshrubs, small, 30-60(-100) cm tall. Branchlets grayish white tomentose. Leaves 3-foliolate; leaflets obovate, broadly obovate, or oblong, terminal one 1-1.5 × 0.6-0.9 cm, abaxially densely white adpressed pubescent, adaxially sparsely adpressed hairy, base cuneate, apex emarginate, obtuse-rounded, or subtruncate, mucronate. Racemes axillary; peduncle slender, distinctly overtopping leaves. Flowers numerous. Calyx 4-5 mm, 5-lobed; lobes lanceolate or ovate-lanceolate, upper 2 lobes connate at lower part, free above. Corolla purple, purplish red, or bluish purple; standard elliptic, ca. 8 mm, base clawed, apex rounded; wings slightly short; keel longer than standard, apex obtuse. Legume broadly ovoid, ca. 7 mm, overtopping persistent calyx, densely pubescent, reticulate veined. Fl. Jun-Sep, fr. Sep-Oct.
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An erect shrub. It grows 60-100 cm high. The branches are hairy. The leaves have 3 leaflets. The leaflets are 2.5 cm long by 1.8 cm wide. They are oval. They are very hairy underneath. The flower are in groups in the axils of the upper portions of the branches. These are 2.5-3.8 cm long. The fruit is 6.5 mm long. It has silky hairs.
Can be grown by cuttings or seedlings. Seeds needs soaking.
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