Plants 40-80 cm tall, glabrous with exception of pedicels and calyx. Stems erect, up to 70 cm, strongly branched. Leaves 3-9 cm; stipules membranous, 2-3 mm; petiole 0.3-0.7 cm, like rachis slender; leaflets in 3-7 pairs, narrowly elliptic, 7-15 × 1.5-2.5 mm, apex obtuse. Racemes 4-8 cm, loosely many flowered; peduncle 4-8 cm; bracts 0.5-2 mm. Calyx 2.5-3 mm, tube subglabrous or sparsely white hairy; teeth all close together at lower side, 0.5-1 mm, sparsely white hairy on outer and inner sides. Petals white; standard suborbicular, ca. 5 × 4 mm, apex emarginate; wings ca. 4.5 mm, limbs slightly obliquely emarginate; keel ca. 4 mm. Legumes subsessile, widely obovoid to subglobose, ca. 3.5 mm, rounded at apex, with a slender, persistent style, 2-locular; valves thin, cross-wrinkled, glabrous.
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