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) and stellate-pubescent, distally piloso-hirsute (hairs 1–2 mm), 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 (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 stipitate-glandular, rarely glabrous or glabrate.

piloso-hirsute and stellate-pubescent.

obconic to campanulate, 7–9 mm.

hemispheric to obconic, 7.5–9 mm.

30–45+;

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

60–120+;

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

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

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

bractlets 6–10+.

bractlets 8–15+.

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

usually borne singly, rarely 2(–3).

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

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

columnar, 1.5–2 mm;

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