Flora of North America species comparison

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

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 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–)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 stipitate-glandular, rarely glabrous or glabrate.

usually stellate-pubescent and stipitate-glandular.

obconic to campanulate, 7–9 mm.

campanulate, (7–)8–9 mm.

30–45+;

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

12–15+;

corollas yellow, 7–9 mm.

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

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

bractlets 6–10+.

bractlets 3–5+.

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

3–12(–20+) in corymbiform arrays.

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

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

columnar, 2.2–4 mm;

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