Flora of North America species comparison

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

usually 1, sometimes 2–4, clustered, glabrous or sparsely tomentose proximally.

(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).

petiolate;

blades usually broadly lanceolate to ovate, sometimes subhastate, 20–50+ × 20–40+ mm, bases truncate to subcordate or obtuse, margins crenate, denticulate, bluntly dentate, or sharply dentate (proximal cauline leaves petiolate; margins usually pinnately lobed to laciniate, sometimes subentire).

gradually reduced (sessile, subentire).

gradually reduced (becoming sessile, sometimes clasping).

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

bracteate, glabrous.

0 or 8–13;

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

0, 8, or 13;

corolla laminae 6–10+ mm.

60–80+;

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

70–80+;

corolla tubes 2.5–3.5 mm, limbs 2–3 mm.

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

(13–)21(–30+), light green, 3–8 mm, glabrous.

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

inconspicuous.

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

5–20+ in open or congested, subumbelliform arrays.

1–1.5 mm, glabrous;

pappi 3–4.5 mm.

1–1.5 mm, glabrous;

pappi 4.5–5.5 mm.

= 46, 130+.

= 40, 44, 46, 80.