Stems unbranched, 10-40(-70) cm; base usually not reddish, nearly glabrous. Leaves mostly on proximal 1/3 of stem; basal leaves 3-4 at anthesis; cauline leaves 0-3 at anthesis; petiole 0.4-8 cm. Leaf blade ± round, 1-5 × 1.5-9 cm, nearly glabrous; ultimate lobes 3-10, width 2-12 mm (basal), 0.5-3 mm (cauline); margins of basal leaf, measured less than 1 cm from blade base, demarcating considerably more than 90° of arc when leaf laid flat; cauline leaf blades much shorter than internodes. Inflorescences 3-15(-25)-flowered, open, ± secund; pedicel 0.5-3(-7) cm, ± glandular-puberulent; bracteoles 2-6(-12) mm from flowers, green to blue, linear or lanceolate, 4-5(-8) mm, ± glandular-puberulent. Flowers: sepals dark blue to bluish purple, puberulent, lateral sepals spreading, 10-14 × 4-7 mm, spurs straight, horizontal or nearly so, 12-16 mm; lower petal blades somewhat elevated, ± exposing stamens, 4-7 mm, clefts 2-4 mm; hairs mostly near base of cleft, white or light yellow. Fruits 9-16 mm, 3.5-4.5 times longer than wide, ± puberulent. Seeds: seed coat cells with surfaces roughened. 2 n = 16.
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