Shrubs to 60 cm tall. Branches bright brown to yellowish gray. Stipules spinelike, 1-1.3 cm. Leaves pinnate, 16-20-foliolate; petiole and rachis caducous; leaflet blades obovate-oblong, 6-7 × 2-4 mm, glabrous, apex acute. Flowers solitary. Pedicel 7-8 mm, articulate near middle. Calyx tube tubular-campanulate. Corolla yellow, ca. 2.2 cm; standard broadly ovate, limb ca. 1.7 × 1.4 cm, claw short; wings oblong, claw ca. 1/3 as long as limb, auricle dentiform and ca. 3 mm; keel with claw ca. 1/2 as long as limb, auricle inconspicuous. Ovary glabrous. Legume not seen. Fl. May.
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