Flora of North America species comparison

proximally usually piloso-hirsute (hairs 1–8+ mm) and stellate-pubescent, sometimes glabrous, distally usually piloso-hirsute (hairs 1–8+ mm) and stellate-pubescent, rarely stipitate-glandular as well, sometimes glabrous.

proximally piloso-hirsute (hairs 1–3+ mm) and stellate-pubescent, distally piloso-hirsute (hairs 1–2 mm), stellate-pubescent, and stipitate-glandular.

basal 0(–5+), cauline (3–)5–10+;

blades lanceolate, oblanceolate or narrowly oblong to elliptic, 50–100(–200) × 10–25(–35+) mm, lengths (3–)4–8+ times widths, bases cuneate, margins entire or denticulate, apices obtuse to acute, faces usually piloso-hirsute (hairs 1–5+ mm) and stellate-pubescent, rarely glabrous.

basal (2–)5–10+, cauline 0(–3);

blades elliptic to ± oblanceolate, 10–45(–75+) × 5–12(–18+) mm, lengths 2–4(–6+) times widths, bases cuneate, margins entire, apices acute, faces piloso-hirsute (hairs 2–7+ mm) and stellate-pubescent.

usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous.

piloso-hirsute and stellate-pubescent.

campanulate, 8–10 mm.

hemispheric to obconic, 7.5–9 mm.

20–45+;

corollas yellow, 10–12 mm.

60–120+;

corollas yellow (often each with abaxial red stripe), 8–13+ mm.

12–21+, apices rounded to acute, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular.

20–34+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well.

bractlets 5–13+.

bractlets 8–15+.

(3–)9–25+ in corymbiform to thyrsiform arrays.

usually borne singly, rarely 2(–3).

(red-brown or black) columnar, ca. 3 mm;

pappi of 32–40+, white or stramineous bristles in ± 2 series, 6–7 mm.

columnar, 1.5–2 mm;

pappi of 30+, white bristles in 1 series, 4–5 mm.