Stem ca. 1 m tall, glabrous, branched. Leaf blade ca. 10 cm wide, base broadly cordate; primary lobes separate for at least 90% of blade radius; central lobe rhombic, 3-parted, distally 2-or 3-cleft, apex acute; ultimate lobules triangular, lanceolate or linear; proximal leaves usually withered. Raceme 4--9 cm, 2--4-flowered, glabrous; proximal bracts leaflike, distal ones linear. Pedicels 1.6--5 cm; bracteoles borne near middle of pedicel or distally, linear, 2--2.8 mm. Sepals blue-purple, abaxially puberulent; spur subulate, 1.5--1.6 cm, base ca. 3 mm in diam.; other sepals ca. 8 mm. Petals undivided, glabrous. Staminode limb broadly oblong, 2-cleft, yellow barbate. Filaments glabrous. Carpels 3, glabrous. Fl. Jul.
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