Stems stout, evenly, moderately to densely short-woolly. Leaf blades usually linear-lanceolate, distal margins entire. Heads 5–200+, not congested on lateral branches of arrays, not subtended by large foliaceous bracts. Involucres 3.6–4.7 mm. Phyllaries: outer 2–3.5 × 0.4–0.6 mm, inner 3.4–4.3 × 0.3–0.5 mm, outer 1 / 3 – 2 / 3 length of inner. Ray florets 20–40; corollas usually white, sometimes pink or pale blue, laminae 4.2–5.8 mm. Disc florets 16–27; corollas 3.5–4.6 mm, limbs 2–2.8, lobes 0.6–0.9. Cypselae 0.7–1.1; pappi 3.4–5.2 mm. 2n = 32.
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