Flora of North America species comparison

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

5–15+, often much branched in distal 1/2, moderately stout to stout, not wiry, hispidulous, sometimes 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, oblong to oblanceolate, 15–45 × 4–15 mm, gradually reduced distally, margins evenly, finely or obscurely serrate or serrulate, teeth 12–25 per side, each tipped with white bristle 0.5–2 mm, faces densely hairy, occasionally stipitate-glandular.

minutely glandular, if stipitate, then minutely so;

bracts 5–25, imbricate, grading into phyllaries.

moderately to densely hispidulous or hispid; ebracteate.

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

depressed-hemispheric, 4–8 × 8–15 mm.

15–25;

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

20–45;

corollas white, tubes 2–3.5 mm, laminae 9–13.5 × 2–3.1 mm.

25–40+;

corollas 4.8–6.3 mm.

60–120+;

corollas 4.6–6.3 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 5–6 series, broadly linear or narrowly lanceolate, 2–7 mm, apices acuminate, often tipped by white seta or bristle, faces densely hairy, 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, 2–2.8 mm, 10–18-ribbed, faces moderately whitish to tawny hairy;

pappi tawny, 3–5.5 mm, a few abaxial bristles 1/3 length of longest.

= 8, 16.

= 8.