Plants perennial, from large, fleshy rhizomes. Stems 1 or more, mostly 5-10 dm. Leaves ca. 3, compound, 10 cm or more; blade with 3 orders of leaflets and lobes; ultimate lobes broadly elliptic or less commonly ovate to obovate with rounded apex, sometimes narrowly elliptic with acute apex, 1-8 × 0.5-4 cm, minutely apiculate. Inflorescences axillary or terminal, racemose or paniculate, 15-35-flowered on primary axis; bracts inconspicuous, proximal bracts narrowly elliptic, distal linear and much reduced. Flowers erect; pedicel 2-5 mm; sepals caducous, ovate to broadly lanceolate, 1-2 mm, margins lacerate or dentate; petals light to deep pink; spurred petal usually somewhat curved, 20-25 mm, spur lanceoloid, 14-20 mm, crest well developed, usually exceeding petal apices, marginal wing absent; unspurred outer petal boat-shaped, 12-15 mm; inner petals not tipped deep red or purple, usually 9-11 mm, blade much wider at apex, claw slender, equaling blade in length; nectariferous spur 1/2-2/3 length of petal spur, bent or hooked at apex; style ca. 3 mm; stigma roughly triangular, with 2 apical and 2 lateral papillae. Capsules reflexed, obovoid, 10-15 × 4-5 mm. Seeds ca. 3.5 mm diam., with numerous small protuberances. 2 n = ca. 130.
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