Prostrate, procumbent or semi-erect perennial herb, to 50 cm tall; stems sparsely or densely pubescent with straight or irregular, loosely appressed basifixed hairs. Leaves mostly 3–10 cm long; leaflets 3–17, narrow-elliptic to obovate, 5–20 mm long, 3–10 mm wide, apices obtuse to acute, glabrous above, pubescent below; stipules oblique, 2–5 mm long. Racemes mostly 5–15-flowered; flowers 6–8 mm long; calyx pubescent, teeth equal to or longer than tube; petals purple or sometimes yellow; standard 6–9 mm long, 5–8 mm wide, suborbicular, clawed; keel 5–8.5 mm long, obtuse, apex lipped and somewhat twisted; style tip incurled, beard minute or absent. Pod ellipsoid to narrow-obloid, mostly 20–35 mm long, 3–8 mm wide, inflated, glabrous or sparsely pubescent, stipe to c. 2 mm long; seeds to c. 20, cordate to reniform, c. 2 mm long, brown. Flowers Aug.–Nov.
