Stems 40--80 cm tall, basally sparsely pubescent, apically densely glandular pubescent and often branched. Basal leaves few, 2-ternate; petiole 8--22 cm; leaf blade abaxially basally pubescent, adaxially subglabrous; lateral leaflets obliquely ovate, unequally 2-lobed to middle; central leaflet cuneate-obovate, 1.5--4.5 × 1.2--4.5 cm, 3-lobed. Stem leaves 2 or 3 or more. Inflorescences cymose, 1--3-flowered; bracts 3-parted. Flowers pendulous or in a ± 90° angle, 3.5--4 cm in diam. Pedicel to 12 cm, densely glandular pubescent. Sepals purple or blue, narrowly ovate, 2--3 × 0.7--0.9 cm. Petals purple or blue, suberect, oblong, 1--1.5 cm, apex rounded-truncate; spur 1.6--2 cm, pubescent, straight or apically slightly incurved. Stamens shorter than petals; anthers black, oblong, ca. 1 mm. Staminodes lanceolate, 6--7 mm. Pistils 5, erect, densely glandular hairy. Follicles 1.5--2.1 cm; persistent styles 5--7 mm. Seeds ca. 2 mm. Fl. Jun--Aug, fr. Jul--Sep.
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