Stem ca. 80 cm tall, glabrous, branched distally. Leaf blade 5--9 cm wide, base deeply cordate; primary lobes separate for at least 90% of blade radius; central lobe rhombic, 3-parted, distally few lobulate, apex acute; ultimate lobules narrowly ovate or narrowly lanceolate; proximal leaves usually not withered. Raceme 14--22 cm, 12--15-flowered, glabrous; proximal bracts 3-parted, distal ones linear to subulate. Pedicels 2.5--6 cm; bracteoles distal, lanceolate-linear, 4--6 mm. Sepals deep blue, abaxially densely puberulent; spur cylindric-subulate, 1--1.4 cm, slightly upcurved, base 2--3 mm in diam.; other sepals 0.9--1.2 cm. Petals undivided, glabrous. Staminode limb elliptic or obovate, emarginate or 2-lobed, yellow barbate. Filaments glabrous. Carpels 3; ovaries subglabrous. Fl. Jul.
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