Flora of North America species comparison

1, glabrous or leaf axils tomentose.

1 or 3–4+, clustered, sparsely tomentose to glabrescent.

(and proximal cauline) petiolate;

blades spatulate to obovate (pinnately lobed, terminal lobes ovate to oblong, lateral lobes 2–6+ pairs, smaller, midribs narrowly winged), 100–300+ × 20–50(–80+) mm, bases contracted to tapering, ultimate margins crenate or dentate to lacerate (faces glabrous).

(and proximal cauline, relatively thick and turgid) petiolate;

blades narrowly elliptic or lanceolate to oblanceolate, 40–70+ × 5–20+ mm, bases tapering, margins entire or subentire to weakly and irregularly dentate (especially at apices).

gradually reduced (petiolate or sessile; obovate, irregularly incised to subpinnate, terminal lobes narrow).

gradually reduced (distal sessile, bractlike).

usually ebracteate (rarely with 1–2 bractlets), glabrous.

bracteate (bractlets usually red-tipped), sparsely tomentose to glabrate.

8–10+;

corolla laminae 10–15+ mm.

5 or 8;

corolla laminae 12–16 mm.

45–60+;

corolla tubes 3–3.5 mm, limbs 4–4.5 mm.

50–60+;

corolla tubes 3.5–4.5 mm, limbs 4.5–5.5 mm.

13 or 21, green, 7–9+ mm, glabrous.

13 or 21, dark green proximally, becoming light green distally (tips red), 7–11+ mm, floccose-tomentose proximally.

inconspicuous.

conspicuous (bractlets red-tipped).

15–50+ in corymbiform arrays.

5–12+ in open, cymiform arrays.

2–2.5 mm, glabrous;

pappi 6–7 mm.

2.5–3.5 mm, glabrous;

pappi 7–8 mm.

= 46.

= 92.