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 2–4+ mm), sometimes stellate-pubescent as well, distally stellate-pubescent, sometimes piloso-hirsute as well.

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 0(–2+), cauline (3–)6–12+;

blades elliptic or obovate to oblanceolate, 20–35(–90) × 10–40(–50) mm, lengths 2–4+ times widths, bases cuneate to rounded (sometimes ± clasping), margins entire, apices rounded to acute, abaxial faces piloso-hirsute (hairs 2–4 mm) and stellate-pubescent, adaxial piloso-hirsute.

usually stipitate-glandular, rarely glabrous or glabrate.

stellate-pubescent and stipitate-glandular.

obconic to campanulate, 7–9 mm.

cylindric to campanulate, 7–10 mm.

30–45+;

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

12–20+;

corollas yellow, 8–9+ mm.

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

12–15+, apices rounded to acute or acuminate, abaxial faces glabrous or stellate-pubescent, rarely stipitate-glandular as well.

bractlets 6–10+.

bractlets 8–12+.

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

(5–)25–50 in usually narrow, thyrsiform arrays (lengths of arrays usually 3–6+ times diams., sometimes shorter).

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

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

urceolate, 3.5–4.5+ mm;

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