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 usually piloso-hirsute (or lanate, hairs 5–8+ mm, usually curled and tangled), sometimes nearly glabrous, distally piloso-hirsute (hairs 1–2+ mm) and stellate-pubescent.

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–)3–8+, cauline (0–)3+;

blades elliptic or spatulate to oblanceolate, lanceolate, or lance-linear, (35–)50–120(–200+) × 10–25(–40+) mm, lengths 2–5(–10+) times widths, bases ± cuneate, margins usually entire, rarely toothed, apices obtuse to acute, faces (proximal leaves) piloso-hirsute (to lanate, hairs 1–3+ mm; distal leaves often ± glabrate).

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

usually stellate-pubescent and stipitate-glandular.

campanulate, 8–10 mm.

campanulate, (7–)8–9 mm.

20–45+;

corollas yellow, 10–12 mm.

12–15+;

corollas yellow, 7–9 mm.

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

12–15+, apices rounded to acute, abaxial faces stellate-pubescent and/or stipitate-glandular.

bractlets 5–13+.

bractlets 3–5+.

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

3–12(–20+) in corymbiform arrays.

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

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

columnar, 2.2–4 mm;

pappi of (40–)60–80, white or stramineous bristles in 2+ series, 4–5+ mm.