Flora of North America species comparison

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

1–15+, often branched at base or throughout, moderately stout to stout, not wiry, moderately hairy (hairs antrorsely appressed).

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 often withering by flowering, blades 20–60 × 10–25 mm, pinnatifid to 2-pinnatifid;

cauline evenly spaced, blades obovate to oblanceolate (proximal), oblong to linear (distal 2/3+), 4–10(–20) × 1–3 mm, markedly reduced distally, margins evenly serrate to serrulate, teeth 3–6 per side, each tipped with prominent white bristle 1.5–2.5 mm, faces moderately hairy (hairs antrorsely appressed).

minutely glandular, if stipitate, then minutely so;

bracts 5–25, imbricate, grading into phyllaries.

moderately hairy (hairs fine, antrorsely appressed, straight to wavy); usually ebracteate.

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

hemispheric, 0.6–0.8 × 0.8–1.3 cm.

15–25;

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

12–26;

corollas yellow, tubes 2.2–3 mm, laminae 6–9.5 × 1–2.5 mm.

25–40+;

corollas 4.8–6.3 mm.

50–100+;

corollas 4–5 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 4–5 series, linear to narrowly spatulate, 2–7 mm, apices usually acuminate, sometimes rounded, tipped by white bristle, faces hairy (moderately antrorsely appressed hairs), sparsely and minutely stipitate-glandular distally.

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.

narrowly obovoid to oblanceoloid, 1.5–2.8 mm, nerves 24–28, faces sparsely whitish hairy;

pappi whitish to tawny, 4–5 mm, bristles progressively longer adaxially.

= 8, 16.

= 4, 6, 8.