Stem 10--30 cm tall, hispid proximally, glabrous distally, branched or simple. Leaf blade 2--6 cm wide, base cordate; primary lobes separate for less than 60% of blade radius; central lobe cuneate or rhombic-cuneate, 3-lobulate, distally few dentate, apex acute; ultimate lobules triangular or lanceolate; proximal leaves not withered. Raceme 2--9 cm, 1--5-flowered, glabrous; bracts small, linear. Pedicels 1.5--5 cm; bracteoles distal, linear-subulate, 2--5 mm. Sepals blue-purple, abaxially sparsely puberulent; spur cylindric-subulate, 1.2--1.5 cm, recurved or U-shaped, base 3--3.5 mm in diam.; other sepals 1.5--1.7 cm. Petals undivided, glabrous. Staminode limb narrowly obovate, emarginate or 2-lobed, yellow barbate. Filaments glabrous or pilose. Carpels 3; ovaries pubescent. Fl. Sep--Oct.
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