Stem 20--50 cm tall, together with petioles densely retrorsely appressed puberulent, usually simple. Leaf blade 5--8 cm wide, base cordate; primary lobes separate for at least 75% of blade radius; central lobe rhombic or narrowly so, 3-lobulate, distally few lobulate or few dentate, apex acute; ultimate lobules linear to narrowly lanceolate; proximal leaves usually withered. Raceme 8--20 cm, densely 5--12-flowered, densely appressed puberulent; proximal bracts leaflike, distal ones linear. Pedicels 1.5--5 cm; bracteoles distal, linear, 1--1.8 cm. Sepals purple-blue, puberulent; spur subcylindric, 1.8--2 cm, straight or slightly recurved, base 3--4 mm in diam.; other sepals 1.6--2.2 cm. Petals undivided, glabrous. Staminode limb broadly obovate or broadly elliptic, entire, emarginate, or 2-lobed, yellow barbate. Filaments glabrous. Carpels 3; ovaries densely puberulent. Fl. Jul--Aug.
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