Stem 24--60 cm tall, sparsely puberulent, simple or 1-branched distally. Leaf blade 4--7 cm wide, base cordate; primary lobes separate for at least 60% of blade radius; central lobe cuneate-rhombic, 3-lobulate, distally few dentate, apex acute; ultimate lobules lanceolate; proximal leaves usually not withered. Corymb 5--8 cm, 2--4-flowered, puberulent; bracts leaflike or narrowly ovate. Pedicels 3.4--8 cm; bracteoles distal, blue-purple, navicular-lanceolate, 1.2--1.8 cm. Sepals bluish, abaxially pubescent; spur tubular-conic, 1.3--1.6 cm, or saccate and ca. 1 cm, base 5--8 mm in diam.; other sepals 1.8--2 cm. Petals emarginate, adaxially yellow pilose. Staminode limb narrowly obovate, 2-cleft to middle, yellow barbate. Filaments glabrous. Carpels 3; ovaries puberulent. Fl. Aug--Sep.
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