Flora of North America species comparison

proximally piloso-hirsute (hairs 1–3+ mm) to glabrate, distally usually glabrous, rarely piloso-hirsute.

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

basal 3–6+, cauline 0–1+;

blades obovate or elliptic to oblanceolate, 40–60(–120) × 15–35(–50+) mm, lengths 2–3(–4) times widths, bases cuneate, margins usually entire, sometimes denticulate, apices rounded to acute, abaxial faces piloso-hirsute (hairs 2–5 mm) and stellate-pubescent, adaxial glabrous or piloso-hirsute (mostly near margins, hairs 2–3 mm).

basal 3–6+, cauline 3–6+;

blades oblanceolate to lanceolate, 35–120 × 10–18+ mm, lengths (2–)4–10+ times widths, bases cuneate to truncate (± clasping), margins entire, apices obtuse to acute, faces usually piloso-hirsute (hairs 0.5–1.5+ mm), sometimes glabrous.

usually stipitate-glandular, rarely glabrous or glabrate.

stellate-pubescent and stipitate-glandular.

obconic to campanulate, 7–9 mm.

campanulate to cylindric, 10–11 mm.

30–45+;

corollas yellow (sometimes pale), 7–11 mm.

15–25+;

corollas ochroleucous, ca. 8 mm.

12–13+, apices acute, abaxial faces usually stellate-pubescent and stipitate-glandular, rarely glabrous.

9–13+, apices ± acuminate, abaxial faces stellate-pubescent and stipitate-glandular.

bractlets 6–10+.

bractlets 5–8+.

4–10(–20+) in corymbiform to paniculiform arrays.

6–10+ in ± paniculiform arrays.

(usually black, sometimes red-brown) columnar, 3–4 mm;

pappi of ca. 50+, stramineous bristles in ± 2 series, 4–5 mm.

urceolate, 5–6 mm;

pappi of 50–60+, white to stramineous bristles in 2+ series, 5–6 mm.