Stem ca. 50 cm tall, puberulent, simple. Leaf blade 5--9 cm wide, base deeply cordate; primary lobes separate for at least 90% of blade radius; central lobe lanceolate-rhombic, subpinnately lobed, distally incised dentate, apex caudate acuminate; ultimate lobules linear to narrowly lanceolate; proximal leaves usually withered. Raceme ca. 15 cm, ca. 24-flowered, densely appressed puberulent; proximal bracts leaflike, distal ones lanceolate. Pedicels 1.5--2 cm; bracteoles distal, lanceolate, 5--8 mm. Sepals blue-purple, abaxially sparsely puberulent; spur cylindric-subulate, 9--10 mm, base 2.5--3 mm in diam.; other sepals ca. 11 mm. Petals entire, glabrous. Staminode limb suboblong, 2-cleft, yellow barbate. Filaments glabrous. Carpels 3, glabrous. Fl. Aug--Sep.
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