Stem 50--65 cm tall, hispid proximally, glabrous distally, branched or simple. Leaf blade 4--7 cm wide, base deeply cordate; primary lobes separate for at least 90% of blade radius; central lobe rhombic, 3-cleft, distally few lobulate or dentate, apex acute; ultimate lobules lanceolate; proximal leaves usually withered. Raceme 5--15 cm, 3--10-flowered, yellow glandular puberulent or glabrous; proximal bracts leaflike, distal ones small, linear or subulate. Pedicels 1.5--4 cm; bracteoles distal, linear or subulate, 2.3--6.5 mm. Sepals deep blue, abaxially puberulent; spur subulate, 1.7--2.2 cm, usually slightly recurved, base ca. 3 mm in diam.; other sepals 1.2--1.5 cm. Petals undivided, glabrous. Staminode limb ovate, 2-lobed or 2-cleft, yellow barbate. Filaments glabrous. Carpels 3; ovaries sparsely puberulent distally or glabrous. Fl. Jul--Aug.
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