Herbs, biennial, 25-70 cm tall. Stems suberect to diffuse, branched, sometimes with accessory branches distally. Petiole vaginate, 2-7 cm; blade glaucous abaxially, green adaxially, ovate, 6-18 × 5-14 cm, bi-to tripinnate; primary pinnae 3(or 4) pairs, long petiolate (1-3 cm), distant; ultimate leaflets ovate, deeply 2-6-divided; lobes obovate-oblong, apex obtuse, obscurely mucronate (lowermost and uppermost leaves smaller). Racemes (4-)10-15(-27)-flowered (lateral racemes smaller), dense in flower, slightly elongating in fruit; lower bracts biternatisect, upper ones less divided. Pedicel 2-3(-5) mm, recurved in fruit. Sepals ca. 0.5 mm. Corolla yellow; outer petals acuminate, rather narrow, crest short, obtuse, much exceeding apex; upper petal with slender spur gracefully downcurved, tapering to apex, 10-13 mm; nectary ca. 1/2 as long as spur; inner petals 7-8 mm. Stigma square, apex with 2 central papillae and broad lateral papillae, narrowed at base with small geminate papillae in basal corners. Capsule narrowly obovoid, (5-)8-11 × 2-3 mm, 2-8-seeded; style ca. 2.5 mm. Fl. and fr. Jul-Aug.
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