Stem 50--75 cm tall, hispid proximally or throughout, branched. Leaf blade 6--13 cm wide, base cordate; primary lobes separate for at least 75% of blade radius; central lobe rhombic, 3-cleft, distally few lobulate or dentate, apex acute; ultimate lobules narrowly ovate; proximal leaves usually withered. Corymb 3--8 cm, 2--5-flowered, glabrous or retrorsely puberulent; proximal bracts 3-parted, distal ones filiform. Pedicels 2--7 cm; bracteoles borne near middle of pedicel, filiform, 2--2.5 mm. Sepals deep blue, abaxially puberulent; spur subulate, 2--2.5 cm, recurved, base ca. 3 mm in diam.; other sepals 0.8--2.1 cm. Petals undivided, glabrous. Staminode limb oblong, 2-cleft, yellow barbate. Filaments glabrous. Carpels 3, glabrous. Fl. Jul.
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