Stem 23--45 cm tall, retrorsely pubescent, simple or 1-branched. Leaf blade 8--11 cm wide, base deeply cordate; primary lobes separate for at least 90% of blade radius; central lobe rhombic, 3-parted, distally incised lobulate, apex acute; ultimate lobules triangular; proximal leaves not withered. Raceme 8--15 cm, 7--10-flowered, densely appressed puberulent; proximal bracts leaflike, distal ones linear. Pedicels 1--5.5 cm; bracteoles distal, linear-lanceolate or linear, 7--10 mm. Sepals purple, abaxially appressed puberulent; spur cylindric-subulate, 1.2--1.6 cm, straight, base 1.2--1.6 mm in diam.; other sepals 1.6--2.1 cm. Petals 2-lobed, adaxially white barbate near apex. Staminode limb obovate, 2-lobed, yellowish barbate. Filaments sparsely puberulent. Carpels 3; ovaries densely pubescent. Fl. Aug--Sep.
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