Caudex carrot-shaped, ca. 5.5 cm, ca. 1.6 cm in diam. Stem 70--100 cm, apically branched, sometimes simple, retrorse pubescent, with leaves equally arranged along stem. Proximal cauline leaves slightly long petiolate, withered at anthesis; petiole 2--10 mm; distal leaves shortly petiolate or sessile; leaf blade broadly ovate or pentagonal-ovate, 7--12 × 7--10 cm, papery, both surfaces pubescent, base broadly cordate or shallowly cordate, 3-parted; central lobe rhombic; lateral lobes obliquely flabellate, unequally 2-fid. Inflorescence terminal, long, 20--40 cm, narrow, many flowered; rachis and pedicels densely yellowish spreading pubescent and intermixed retrorse pubescent; proximal bracts leaflike, distal ones oblong-linear, shortly petiolate, 1.8--2.8 cm. Pedicels 1--2.5 cm, with 2 bracteoles near middle; bracteoles of proximal pedicels oblong or narrowly oblong, ca. 1 cm, distal ones linear, 4--6 mm. Sepals purple-blue, abaxially pubescent; lower sepals 1.4--1.7 cm; lateral sepals 1.5--1.8 cm; upper sepal galeate, shortly beaked, 1.7--2 cm from base to beak. Petals glabrous or pubescent; lip ca. 5 mm, 2-lobed; spur slightly incurved, ca. 1 mm. Stamens glabrous; filaments entire. Carpels 5, glabrous or pubescent. Fl. Sep. 2n = 16*.
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