Plants 4–7+ dm. Stems sparsely appressed-puberulent. Leaves mostly cauline; blades (mid stem) mostly oblanceolate to lance-linear, rarely ovate, 3–7 cm × (5–)10–20+ mm, l/w = (2.5–)3.5–6+ (bases rounded-truncate), abaxially scabrellous (hairs awl-shaped), resin-gland-dotted, adaxially scabrellous. Heads in ± corymbiform to paniculiform arrays. Peduncles 5–35 mm. Involucres ± campanulate, 6–11 × 5–9 mm. Phyllaries 40–50+ in 5–6 series, sparsely puberulent, margins arachno-ciliate, the outer subulate to filiform, 3–7 mm, inner lance-attenuate to filiform, 9–10+ mm, tips subulate to filiform. Florets 14–25(–30+). Cypselae 3–3.5 mm; pappi stramineous, outer scales 25–30, 0.6–1.1 mm, contrasting with 30+, 6–7+ mm inner bristles. 2n = 34.
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