Stem 5--80 cm tall, puberulent or pilose, sometimes also with glandular hairs, usually branched. Leaf blade 0.4--12 cm wide, adaxially densely puberulent or velutinous, base cordate; primary lobes separate for at least 90% of blade radius; central lobe rhombic or obovate-rhombic, 1--3 × dissected, distally 1-or 2-lobulate or undivided, apex rounded to acute; ultimate lobules linear, 2--5 mm wide; proximal leaves withered or not. Corymb 5--14 cm, 1--7-flowered, finely puberulent; proximal bracts leaflike or 3-sect, distal ones linear. Pedicels 3.5--8 cm; bracteoles borne near middle of pedicel or distally, lanceolate-linear, 4--10 mm. Sepals purple-blue, rarely white, abaxially puberulent; spur subulate, 1.5--2.8 cm, nearly straight or slightly recurved, base 2--3(--4) mm in diam.; other sepals 1.2--1.9(--2.5) cm. Petals undivided, glabrous. Staminode limb broadly obovate or suborbicular, entire or emarginate, yellow barbate. Filaments glabrous or pilose. Carpels 4 or 5; ovaries puberulent or villous. Fl. (Jun--)Jul--Oct.
Can be grown by cuttings or seedlings. Seeds needs stratification.
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