Herbs, perennial. Stems erect, 30-70 cm tall, sparsely to densely white pubescent. Leaf petiole 4-10 cm, basally expanded and amplexicaul; blade abaxially green, adaxially gray-white, reniform to broadly cordate, sometimes upper leaves triangular-cordate, large, 10-15 × 10-20 cm, densely tomentose, palmately veined, concave abaxially, convex adaxially, base deeply cordate, margin irregularly deltoid-lobed or obtusely dentate, apex acute or acuminate. Uppermost leaves subsessile, smaller. Capitula numerous, terminal, broadly corymbose, 3-5 cm in diam.; peduncles 3-6 cm, coarse. Involucres campanulate, 5-10 × 7-15 mm; phyllaries 1-seriate, lanceolate, apically acuminate. Ray florets purple-red, blue, pink, or whitish; lamina spreading, narrowly elliptic-oblong, 2.5-3.5 × 1-1.5 cm, apically 3-denticulate. Disk florets white, cream-colored, or pink (never yellow), ca. 6 mm. Achenes oblong, 1.5-2 mm, angled or ribbed, at first hairy, glabrescent. Pappus of capillary-like bristles, white, 4-5 mm. Fl. and fr. Mar-Jul.
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Short-lived perennials or facultative annuals, 20–80 cm. Leaves: petioles ± lengths of blades, often with expanded and clasping bases; blades 6–12 × 6–12 cm, margins wavy to dentate (distal leaves smaller, bractlike). Phyllaries 4–6 mm. Ray florets: corollas white or bicolored, proximal 1 / 3 – 2 / 3 of laminae white, the rest purplish to reddish, pinkish, or bluish. Disc corollas 2.5–3.5 mm. Cypselae glabrous or puberulent between ridges; ray cypselae slightly larger and lighter colored than the brown to black disc cypselae ( pappi of ray florets 0 or 2 subulate or setiform scales). 2n = 60.
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