Herbs, perennial, 30-40 cm tall, rhizome with many thick soft roots. Stems several, decumbent to ascending, branched, with 4-7 leaves. Basal leaves: petiole 4-7 cm, vaginate at base; blade oblong, 5-15 × 2-4 cm, bipinnate, lower leaves large, upper leaves small; pinnae 3-5 pairs, petiolulate to nearly sessile; pinnules 1 or 2 pairs, sessile, ovate, deeply 3-5-lobed; segments lanceolate to obovate, 3-5 × ca. 2 mm. Cauline leaves like basal leaves, petiolate to sessile. Raceme oblong or nearly globose, 2-3 × ca. 2 cm, densely 10-17-flowered; bracts longer than pedicels, lower palmately lobed, ca. 10 × 6 mm, upper smaller, spatulate, 3-divided, petiolate, sometimes entire. Pedicel ca. 5 mm. Sepals ca. 2 × 1.5 mm, finely dentate. Flowers dull purple. Upper petal 11-13 mm, acute at apex, crest high, obtuse, extended beyond apex, not decurrent on spur; spur strongly hooked-curved, ca. 3 mm; nectary ca. 2/3 as long as spur; lower petal 8-9 mm with long claw and small rounded limb, broadly and shortly crested; inner petals 7-8 mm. Stigma deeply emarginate with 4 apical marginal simple papillae and geminate papillae in basal corners; basal lobes not developed. Capsule not seen.