Stem 70--100 cm tall, retrorsely puberulent proximally, glabrescent distally, simple or branched. Leaf blade 13--18 cm wide, base cordate; primary lobes separate for at least 75% of blade radius; central lobe rhombic, 3-cleft, distally lanceolate, few lobulate, apex long acuminate; ultimate lobules narrowly lanceolate; proximal leaves withered. Raceme 6.5--15 cm, densely 14--20-flowered, densely yellow glandular puberulent and sparsely retrorsely puberulent; bracts linear-filiform, 1--1.6 cm. Pedicels 0.7--1.1 cm; bracteoles distal, subulate, ca. 6 mm. Sepals blue-purple, abaxially yellow glandular puberulent; spur conic-subulate, 1.2--1.7 cm, recurved or nearly straight, base 2--3 mm in diam.; other sepals ca. 1.5 cm. Petals undivided, glabrous. Staminode limb suboblong, 2-cleft, yellowish barbate. Filaments pilose. Carpels 3; ovaries puberulent. Fl. Jul--Aug.
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