Flora of North America species comparison

1 or multiple, clustered, usually glabrous, rarely sparsely floccose-tomentose, leaf axils sometimes tomentose.

1 or multiple (crowded to subcespitose), floccose-tomentose or glabrescent.

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

blades lanceolate or narrowly oblanceolate, 20–40+ × 5–15 mm, bases tapering, margins usually entire, sometimes sub-pinnatisect (apices subentire or dentate).

petiolate;

blades lanceolate to oblanceolate, 30–60+ × 10–30+ mm, bases tapering, margins shallowly, evenly pinnatifid to pinnatisect or wavy (adaxial faces floccose-tomentose or subglabrescent).

gradually reduced (± petiolate or sessile).

gradually reduced (sessile; lanceolate to oblanceolate, pinnatisect to wavy).

bracteate, glabrous or sparsely tomentose.

bracteate, densely to irregularly floccose.

8–10(–13);

corolla laminae 5–8+ mm.

6–8+;

corolla laminae 5–7 mm.

45–60+;

corolla tubes 3–3.5 mm, limbs 4–5 mm.

30–40+;

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

13 or 21, green, 6–10 mm, sparsely tomentose proximally, glabrous distally.

13, green, 5–7 mm, floccose proximally to glabrescent distally.

inconspicuous.

0 or inconspicuous (bractlets red-tinged).

4–15+ in corymbiform arrays.

6–25+ in open or compact, corymbiform arrays.

1.5–2.5 mm, glabrous or sparsely hirtellous on ribs;

pappi 5–6 mm.

2.5–3 mm, glabrous;

pappi 4–5 mm.

= 46.

= 46.