Stem (10--)20--55 cm tall, puberulent, branched or rarely simple. Leaf blade 2--5 cm wide, base deeply cordate; primary lobes separate for at least 90% of blade radius; central lobe broadly rhombic, 2-or 3-subpinnately dissected, distally incised, apex acute; ultimate lobules lanceolate or linear; proximal leaves withered. Corymb 3--12 cm, 2--6-flowered, densely puberulent, often mixed with yellow, glandular hairs; bracts leaflike or undivided, subulate. Pedicels 4.5--9 cm; bracteoles borne near middle of pedicel, linear or subulate, 3--7 mm. Sepals blue-purple or bluish gray, persistent, abaxially puberulent; spur subulate, 2.1--2.4 cm, base ca. 3 mm in diam.; other sepals 1.5--2 cm. Petals emarginate, glabrous. Staminode limb suboblong, 2-cleft, yellow barbate. Filaments glabrous. Carpels 3 or 5; ovaries puberulent. Fl. Jul--Aug. 2n = 16*.
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