Stem 70--80 cm tall, retrorsely hispid proximally, puberulent near middle, simple or 1-or 2-branched. Leaf blade to 12 cm wide, base deeply cordate; primary lobes separate for at least 90% of blade radius; central lobe rhombic, 3-cleft, distally sparsely lobulate or dentate, apex acute; ultimate lobules narrowly triangular; proximal leaves withered. Raceme 10--16 cm, 10-to many flowered, puberulent; proximal bracts 3-sect, distal ones undivided, narrowly linear. Pedicels 0.8--1.2 cm; bracteoles distal, narrowly linear, 5--7 mm. Sepals blue, abaxially puberulent; spur cylindric-subulate, 1.2--1.5 cm, nearly straight, base ca. 3.5 mm in diam.; other sepals ca. 1.3 cm. Petals entire, glabrous. Staminode limb broadly ovate, 2-cleft, yellow barbate, ciliate distally. Filaments glabrous. Carpels 3, glabrous. Fl. Jul--Aug.
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