Plants erect or bushy, usually 30–150+ cm, variably tomentose, sometimes ± glabrate. Leaf faces gray-tomentose or adaxial ± glabrate. Heads sometimes in tight clusters at ends of peduncles, usually long-pedunculate, usually elevated well above proximal leaves. Involucres usually about as wide as tall, 4–5 cm diam., densely arachnoid with fine trichomes connecting tips of adjacent phyllaries. Phyllaries subequal, outer ascending to spreading or reflexed, mid apices ascending to stiffly spreading, straight, acicular, usually 1.5–3 × 1–2 mm. Corollas light purple to rich reddish purple, usually 25–33 mm.
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