Stem 22--80 cm tall, sparsely hispid, usually simple. Leaf blade 5--11 cm wide, base cordate; primary lobes separate for at least 60% of blade radius; central lobe rhombic or cuneate-rhombic, 3-lobulate, distally dentate, apex acute; ultimate lobules lanceolate; proximal leaves usually not withered. Raceme 6--20 cm, 5--12-flowered, glabrous or sparsely hispid proximally; proximal bracts 3-parted or undivided, lanceolate, distal ones smaller, narrowly lanceolate. Pedicels 1--3.2 cm, glabrous; bracteoles distal, narrowly lanceolate, ca. 7 mm, long ciliate. Sepals blue-purple, glabrous or ciliate; spur cylindric-subulate, 1.4--1.7 cm, base 2.5--3.5 mm in diam.; other sepals 0.9--1.5 mm. Petals emarginate, glabrous. Staminode limb ovate, 2-lobed, yellow barbate. Filaments glabrous. Carpels 3, subglabrous. Fl. Jul--Aug.
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