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.

glabrous or nearly so.

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 5–9+, cauline 0–3;

blades oblanceolate to spatulate, 35–95+ × 12–25+ mm, lengths 2–4+ times widths, bases cuneate, margins entire, apices rounded to acute, abaxial faces glabrous or piloso-hirsute (on midribs, hairs 5–8+ mm), adaxial piloso-hirsute (hairs 5–8+ mm, often tangled).

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

glabrous or stipitate-glandular.

campanulate, 8–10 mm.

campanulate to cylindric, (7–)9–10 mm.

20–45+;

corollas yellow, 10–12 mm.

6–12;

corollas yellow, 8.5–10 mm.

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

8–13+, apices obtuse to acute, abaxial faces glabrous or stipitate-glandular.

bractlets 5–13+.

bractlets 3–5+.

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

(3–)15–15(–40+) 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.

urceolate, 5–5.5 mm;

pappi of 50–60+, stramineous to rufous bristles in 2+ series, 5–8 mm.