Stem 55--65 cm tall, glabrous proximally, yellow glandular puberulent near raceme, 1-branched. Leaf blade 6--13 cm wide, base deeply cordate; primary lobes separate for at least 60% of blade radius; central lobe broadly rhombic, 3-lobulate, distally incised dentate, apex acute; ultimate lobules ovate or narrowly so; proximal leaves withered or not. Raceme 5--24 cm, 5--15-flowered, puberulent and yellow glandular puberulent; bracts lanceolate-linear, sometimes proximal bracts leaflike. Pedicels 0.6--6 cm; bracteoles distal, linear-lanceolate, 4.5--6.5 mm. Sepals purple, abaxially sparsely yellow glandular puberulent; spur subulate, 1.4--1.7 cm, straight or slightly recurved, base 2--2.5 mm in diam.; other sepals 0.9--1.1 cm. Petals 2-lobulate, glabrous. Staminode limb triangular, 2-cleft, sparsely yellowish barbate. Filaments glabrous. Carpels 3, glabrous. Fl. Jul.
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