Flora of North America species comparison

± pannose.

sparsely appressed-puberulent, glabrescent.

mostly cauline;

blades linear, 5–8 cm × 2–4 mm, l/w = 17–25(–40), abaxially densely sericeo-tomentose, adaxially usually glabrate, sometimes sparsely arachno-tomentose.

mostly cauline;

blades lanceolate to oblanceolate, 10–15(–18+) cm × 30–45(–70+) mm, l/w = 2.5–3.5(–4), abaxially scabrellous (hairs awl-shaped), resin-gland-dotted or not, adaxially glabrous or sparsely puberulent.

5–35 mm.

2–35 mm.

± obconic to campanulate, 6–10 × 5–8 mm.

± hemispheric, 5–8 × 7–8 mm.

12–24+.

30–45+.

40–50+ in 5–6+ series, sericeo-tomentose, including margins, the outer lance-ovate, 1–2 mm, the inner lanceolate to lance-linear, 6–7(–9+) mm, tips acute.

40–60 in 5–6 series, sparsely puberulent to tomentulose, glabrescent, margins ciliolate, the outer lance-deltate to subulate, 1–3 mm, inner oblong, 4–7+ mm, tips acuminate to subulate or filiform.

in corymbiform arrays.

in corymbiform to paniculiform arrays.

3–4 mm;

pappi stramineous to purplish, outer scales 20+, 0.6–1.1 mm, contrasting with 20+, 6–7+ mm inner bristles.

3–4 mm;

pappi stramineous to whitish, outer subulate scales or bristles 30, 0.5–1.5+ mm, intergrading with 30+, 6–8 mm inner subulate scales or bristles.

= 34.

= 34.