Stems (20-)60-100(-160) cm; base reddish or not, glabrous. Leaves mostly on proximal 1/3 of stem, on proximal 1/5 at anthesis; basal leaves 0-3 at anthesis; cauline leaves 4-7 at anthesis; petiole 1.5-17 cm. Leaf blade round to pentagonal, 1.5-7 × 2-14 cm, glabrous; ultimate lobes 3-12, width 4-30(-45) mm (basal), 3-30 mm (cauline). Inflorescences 3-15(-35)-flowered, open, often ± secund; pedicel 1-4(-15) cm, glabrous to puberulent; bracteoles 2-8(-37) mm from flowers, green, linear, 4-7(-11) mm, nearly glabrous. Flowers: sepals bluish purple, nearly glabrous, lateral sepals spreading, (10-)12-18 × 7-10 mm, spurs usually downcurved, ca. 30° below horizontal, 11-22 mm; lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 1-2 mm; hairs mostly near base of cleft on inner lobes, yellow, sometimes white. Fruits 13-20 mm, 3.5-4 times longer than wide, puberulent. Seeds unwinged; seed coat cells with surfaces roughened. 2 n = 16.
Home