Flora of North America species comparison

proximally usually piloso-hirsute (hairs 1–6+ mm), rarely glabrous, distally glabrous.

proximally piloso-hirsute (hairs 3–6+ mm), distally piloso-hirsute (hairs 1–2+ mm) and stellate-pubescent.

basal (0–)3–8+, cauline 1–5(–12+);

blades oblanceolate, 40–100(–300) × 12–30(–60+) mm, lengths 3–5+ times widths, bases cuneate, margins usually entire, sometimes sinuately toothed, apices obtuse to acute, faces piloso-hirsute (hairs 1–6 mm), rarely glabrous.

basal 2–8+, cauline (0–)3–4+;

blades elliptic to oblanceolate, 30–85 × 16–35 mm, lengths 2.5–5+ times widths, bases cuneate (basal) or clasping (cauline), margins entire or denticulate, apices obtuse to acute, faces piloso-hirsute (hairs 1–2+ mm).

usually glabrous, sometimes stipitate-glandular.

stellate-pubescent.

± campanulate, (7–)8–10(–11) mm.

campanulate, 7–9+ mm.

(6–)12–25+;

corollas yellow, 9–10 mm.

25–40;

corollas whitish to pale yellow, 8–9 mm.

8–13+, apices acuminate, abaxial faces piloso-hirsute (hairs 1–2+ mm), stellate-pubescent, and stipitate-glandular.

13–18+, apices ± rounded to acute, abaxial faces stellate-pubescent.

bractlets 5–12+.

bractlets 9–12+.

(3–)12–50+ in corymbiform to paniculiform arrays.

8–12(–25+) in ± paniculiform arrays.

columnar, 2.5–4 mm;

pappi of 30–40+, stramineous bristles in ± 2 series, (4–)5–7 mm.

urceolate, 3.5–4.5 mm;

pappi of 45–60+, white or stramineous bristles in 2+ series, 5–5.5+ mm.