Stem 35--150 cm tall, spreading pubescent or glabrous, branched or simple. Leaf blade 4--14 cm wide, base cordate; primary lobes separate for at least 75% of blade radius; central lobe rhombic or narrowly so, 3-lobulate, distally undivided, apex acute; ultimate lobules lanceolate or linear; proximal leaves usually withered. Corymb umbelliform, 2--4 cm, 2--5-flowered; bracts 3-sect or undivided, linear. Pedicels 1.8--3 cm, spreading puberulent and yellow glandular puberulent or only appressed puberulent; bracteoles borne near middle of pedicel, subulate, 2.5--9 mm. Sepals purple-blue or blue, abaxially puberulent; spur subulate (subcylindric), 1.6--2.1(--2.4) cm, straight or slightly recurved, base 2.6--4 mm in diam.; other sepals 1.3--1.7(--2) cm. Petals entire or emarginate, glabrous. Staminode limb ovate, 2-lobed, yellowish barbate, long ciliate. Filaments glabrous. Carpels 3; ovaries densely puberulent. Fl. Jul--Sep.
Home