Stems (45-)60-85(-100) cm; base reddish, glabrous. Leaves usually all cauline at anthesis; basal leaves 0-2 at anthesis; cauline leaves 3-8 at anthesis; petiole 0.4-18 cm. Leaf blade pentagonal to round, 1-6 × 1.5-8 cm, margins crenate, glabrous; ultimate lobes 3-5, width 2-5 mm (basal), 5-30 mm (cauline), widest at middle or in proximal 1/2. Inflorescences 8-23-flowered, at least 2 times longer than wide; pedicel 1-6(-9) cm, glandular-puberulent; bracteoles 4-6 mm from flowers, green to blue, lance-linear, 5-8(-13) mm, glabrous to glandular-puberulent. Flowers: sepals dark bluish purple, nearly glabrous, lateral sepals spreading, 9-11 × 4-5 mm, spur apex decurved, ± horizontal, 9-13 mm; lower petal blades ± covering stamens, 5-7 mm, clefts 2-3 mm; hairs sparse, mostly near base of cleft, centered or on inner lobes, white. Fruits 18-20 mm, 3.5-4 times longer than wide, glabrous. Seeds unwinged; seed coats smooth.
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