Plants 30–80(–120) cm (aerial stems simple or branched near or proximal to middles). Leaves basal and cauline; basal petiolate; blades ± 3-nerved, oblanceolate, (2–)4–25(–34) cm × 2–13+ mm (cauline sessile, ascending, linear, sharply differentiated from basal). Heads 1–34, 20–30 mm diam. Peduncles 5–50 cm. Phyllaries 4–9.5 × 0.5–2.5 mm, (margins ± winged proximally) apices subulate. Paleae linear-attenuate, apices subulate (often gland-dotted). Corollas usually pale lavender to purple, rarely white, lobes 2.5–6 × 0.5–1 mm. Pappi: scale margins entire or denticulate. 2n = 18.
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