Plants 2–3(–5+) dm. Stems glabrous or glabrate. Leaves mostly cauline; blades lance-linear to linear, 3–7+ cm × 2–8+ mm, l/w = 7–15+, abaxially scabrellous (hairs appressed, awl-shaped), resin-gland-dotted, adaxially scabrellous, glabrescent, resin-gland-dotted. Heads in open, corymbiform to paniculiform arrays. Peduncles 12–35 mm. Involucres campanulate to obconic, 6–8 × 6–10 mm. Phyllaries 30–40+ in 4–5 series, puberulent, margins arachno-ciliate, the outer lance-ovate, 2–3 mm, inner lance-oblong to linear-oblong, 6–7 mm, tips acute or rounded-apiculate. Florets 18–25+. Cypselae 2.5–3+ mm; pappi stramineous to whitish, outer scales 25–30, 0.5–1.1 mm, contrasting with 30–40+, 5–7+ mm inner bristles. 2n = 34.
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