Flora of North America species comparison

1 or 2–3, clustered, glabrous or glabrate.

usually 1, sometimes 2, densely tomentose (at least proximally), becoming glabrate distally.

(relatively thick and turgid) petiolate;

blades elliptic-ovate, ovate, or subreniform, 20–40+ × 10–30+ mm, bases tapering to subcordate, margins dentate to crenate (proximal cauline leaves petiolate; margins dissected to pinnatifid).

(relatively leathery) sessile;

blades linear, 10–15+ × 1–2 mm, margins entire (revolute).

gradually reduced (sessile, subentire).

abruptly reduced (linear, bractlike).

bracteate (bractlets cyanic or reddish), glabrous or sparsely tomentose distally.

bracteate, tomentose or glabrate.

0 or 8–13;

corolla laminae (deep orange-yellow) 5–7 mm.

0 or 5–8;

corolla laminae 4–7 mm.

60–80+;

corolla tubes 1.5–2.5 mm, limbs 2.5–3.5 mm.

30–40+;

corolla tubes 2.5–3.5 mm, limbs 3.5–4 mm.

13 or 21, deep red or green (then tips deep red to purple), 7–10 mm, glabrous.

13, purple to deep reddish purple, 6–9+ mm, hairy or glabrescent.

conspicuous (bractlets deep red or at least apices deep red to purple).

conspicuous.

1–6+ in open to compact, subumbelliform arrays.

1(–2).

1–1.5 mm, glabrous;

pappi 3–4.5 mm.

3–3.5 mm, hirtellous;

pappi 5–6 mm.

= 46, 130+.