Plants erect, usually 50–200 cm, thinly to densely gray-tomentose, sometimes glabrate. Leaf faces abaxially green to gray, adaxially gray. Heads in ± open clusters, short-to long-pedunculate, elevated well above proximal leaves. Involucres usually about as wide as long, 1.5–5 cm, subglabrous to densely arachnoid. Phyllaries usually imbricate, mid apices appressed to loosely spreading or ascending, sometimes twisted, usually less than 1 cm (but sometimes much longer, 1–3 mm. Corollas white to light purple or rose, 18–35 mm. 2n = 28, 29, 30 (as C. californicum).
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