Stems (30-)60-100(-150) cm; base usually reddish, glabrous, glaucous. Leaves mostly cauline; basal leaves absent at anthesis; cauline leaves 3-7 at anthesis; petiole 2-10 cm. Leaf blade round to pentagonal, 1.5-6 × 2-12 cm, nearly glabrous; ultimate lobes 3-12, width 3-24 mm (basal), 1-8 mm (cauline). Inflorescences 15-30(-64)-flowered, cylindric; pedicel spreading, (0.5-)1.5-3.5 cm, glabrous; bracteoles 2-6 mm from flowers, green, linear, 2-5 mm, glabrous. Flowers: sepals rarely reflexed, white to pink, nearly glabrous, lateral sepals spreading, 7-19 × 3-10 mm, spurs straight to upcurved, ascending 30-45° above horizontal, 7-15 mm; lower petal blades elevated, exposing stamens, 3-8 mm, clefts 1-4 mm; hairs centered near base of cleft, ± evenly distributed, white. Fruits 9-18 mm, 2.5-3.2 times longer than wide, puberulent. Seeds: seed coat cells brick-shaped, cell margins undulate, surfaces roughened.
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