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, sometimes piloso-hirsute as well (hairs 1–2+ mm).

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 3–8+, cauline 1–5+;

blades (often purple-mottled) lance-elliptic to lanceolate, 50–100 × 10–50+ mm, lengths 2–5 times widths, bases usually cuneate, sometimes rounded to truncate, margins ± dentate or entire, apices acute, faces usually ± piloso-hirsute (at least near margins, hairs 1–3+ mm), sometimes glabrate.

usually stipitate-glandular, rarely glabrous or glabrate.

stellate-pubescent and stipitate-glandular.

obconic to campanulate, 7–9 mm.

± obconic, 8–10 mm.

30–45+;

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

40–80+;

corollas yellow, 13–18 mm.

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

ca. 21+, apices acute to acuminate, abaxial faces stellate-pubescent and stipitate-glandular.

bractlets 6–10+.

bractlets 13–16+.

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

(1–)3–9+ 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, 2.5–3 mm;

pappi of 30–40+, stramineous bristles in ± 2 series, ca. 5 mm.