Flora of North America species comparison

3–15+, branched in distal 1/2, slender and wiry, glabrous.

5–10+, often branched in distal 1/3, moderately stout to stout, not wiry, hispid or minutely stipitate-glandular.

basal often withering by flowering, 20–35 × 6–12 mm, pinnatifid;

cauline evenly spaced, blades oblong to linear, scalelike, 4–6 × 1–2 mm (except proximalmost), markedly reduced distally, margins usually entire, faces glabrous.

basal withering by flowering;

cauline evenly spaced, blades narrowly to broadly oblong to obovate, 5–60 × 2–10 mm, gradually reduced distally, margins unevenly, often coarsely serrate, teeth 5–14 per side, each with white bristle 0.5–2 mm, faces hispidulous and often stipitate-glandular.

minutely glandular, if stipitate, then minutely so;

bracts 5–25, imbricate, grading into phyllaries.

moderately to densely stipitate-glandular, usually ebracteate.

hemispheric (narrowed at bases), 0.5–0.8 × 1–1.2 cm.

depressed-hemispheric, 0.4–0.7 × 0.9–1.5 cm.

15–25;

corollas yellow, tubes 3.5–4 mm, laminae 5–6 × 1.5–2.5 mm.

12–28;

corollas usually white, often pink- or purple-tinged abaxially, rarely purple, tubes 1.5–3.2 mm, laminae 8–18.5 × 1.9–4.7 mm.

25–40+;

corollas 4.8–6.3 mm.

50–120+;

corollas 4–6.1 mm.

in 5–6 series, oblong to linear-oblanceolate, 1.5–6.5 mm, apices acute, tipped by white bristle, faces minutely stipitate-glandular.

in 4–6 series, broadly linear to lanceolate, 1.5–7 mm, apices obtuse to short-acuminate, tipped by white seta, faces densely stipitate-glandular.

narrowly obovoid to oblanceoloid, 1.5–2.5 mm, nerves 12–18, moderately tawny hairy;

pappi tawny, 3.5–6 mm, a few abaxial bristles to 1/3 of longest.

oblong to obovoid, 1.5–2.6 mm, 8–14-ribbed, faces moderately to densely whitish to tawny hairy;

pappi whitish to tawny, 1.3–5 mm, a few abaxial bristles to 1/3 of longest.

= 8, 16.

= 8.