Herbs, perennial, 25-40 cm tall, glabrous. Rhizome 1-3 cm, with coarse roots and dense remnants of petiolar bases, apically with leaf rosette. Stems suberect, simple or with a thin late branch, with 2(-4) leaves. Radical leaves several; petiole 15-20 cm, shortly fleshy-vaginate at base; blade slightly glaucous abaxially, ternate to biternate; leaflets deeply biternatisect into narrowly oblong to lanceolate, obtuse to acute mucronate lobes. Cauline leaves: lower petiole 3-10 cm, upper absent to 1 cm; blade 4-6 × 4-6 cm, like radical leaves. Raceme 11-25-flowered; bracts 8-15 mm, shortly stalked, lower deeply biternatisect or like upper cauline leaf, middle deeply or slightly 3-divided to entire, upper narrowly oblanceolate, entire. Pedicel 10-20 mm, thin. Sepals 1-1.5 × ca. 0.5 mm, deeply dentate. Corolla blue to purplish red. Outer petals long acuminate, without or with very narrow short dentate crest; upper petal 22-25 mm; spur straight, cylindric, 12-13 mm; nectary ca. 2/5 as long as spur; lower petal 13-14 mm, claw narrow with prominent pouch or spurlet close to base, abruptly expanded to basally rounded apically long acuminate dentate limb; inner petals 10-12 mm. Stigma square; marginal simple papillae: median 2 distinct, lateral diffuse; geminate papillae lateral and on poorly developed basal lobes. Fruit not seen; ovules ca. 20; style ca. 4 mm. Fl. Jun-Aug.
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